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When I set up a user account restricted to port forwarding, `command="/bin/echo message"` blocks `permitopen`

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I'm trying to set up a user account that can only set up a tunnel for port forwarding on a specific port (9229). I've created the user with a minimal home folder (just a .ssh folder and .ssh/authorized_keys file). I've gotten the private key login working (and have since disabled password login). Now here is my authorized_keys file:

permitopen="localhost:9229",no-pty,no-X11-forwarding,no-agent-forwarding,command="/bin/echo 'Remote shell access has been disabled'" ssh-rsa KEY USER@HOST

Now when I try to set up the tunnel with ssh -i KEY -o ExitOnForwardFailure=yes -L 9229:127.0.0.1:9229 USER@HOST sleep 10, I just get Remote shell access has been disabled. If I remove the command=... part, there's no problem, but then the user can get up to all kinds of stuff.

What am I doing wrong?

I am basing my method on https://stackoverflow.com/questions/8021/allow-user-to-set-up-an-ssh-tunnel-but-nothing-else

I have tried moving the permitopen directive after and before the command directive. I also have tried permitopen=127.0.0.1:9229 and permitopen=:9229.


Intel Wifi Driver problems in Ubuntu 20.04 development branch

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I'm running an up-to-date version of the dev branch and have had a problem since I first installed it.

I'm on a new Dell Precision 7740, with:

Intel i9-9880H

Radeon Pro WX 3200

and network card is:

Intel Wi-Fi 6 AX200 2x2 .11ax 160MHz + Bluetooth 5.0 Driver

I'm getting a bunch of problems. Packet loss varies from 15%-35%, often I can't load anything when I'm on wifi.

Here's the output of dmesg | grep iwlwifi:

[118368.582816] iwlwifi 0000:70:00.0: Collecting data: trigger 2 fired.[118369.288584] iwlwifi 0000:70:00.0: Applying debug destination EXTERNAL_DRAM[118369.461237] iwlwifi 0000:70:00.0: FW already configured (0) - re-configuring[118369.480097] iwlwifi 0000:70:00.0: BIOS contains WGDS but no WRDS[118369.755731] iwlwifi 0000:70:00.0: Microcode SW error detected. Restarting 0x0.[118369.755977] iwlwifi 0000:70:00.0: Start IWL Error Log Dump:[118369.755982] iwlwifi 0000:70:00.0: Status: 0x00000040, count: 6[118369.755986] iwlwifi 0000:70:00.0: Loaded firmware version: 48.4fa0041f.0 cc-a0-48.ucode[118369.755991] iwlwifi 0000:70:00.0: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL    [118369.755994] iwlwifi 0000:70:00.0: 0x000022F0 | trm_hw_status0[118369.755998] iwlwifi 0000:70:00.0: 0x00000000 | trm_hw_status1[118369.756001] iwlwifi 0000:70:00.0: 0x004F8E3C | branchlink2[118369.756004] iwlwifi 0000:70:00.0: 0x004E4FF4 | interruptlink1[118369.756007] iwlwifi 0000:70:00.0: 0x004E4FF4 | interruptlink2[118369.756011] iwlwifi 0000:70:00.0: 0x00016FF4 | data1[118369.756014] iwlwifi 0000:70:00.0: 0x00001000 | data2[118369.756017] iwlwifi 0000:70:00.0: 0xF0000008 | data3[118369.756020] iwlwifi 0000:70:00.0: 0x008099B1 | beacon time[118369.756023] iwlwifi 0000:70:00.0: 0x4F3B368B | tsf low[118369.756027] iwlwifi 0000:70:00.0: 0x000003D9 | tsf hi[118369.756030] iwlwifi 0000:70:00.0: 0x00000000 | time gp1[118369.756033] iwlwifi 0000:70:00.0: 0x00071EC4 | time gp2[118369.756036] iwlwifi 0000:70:00.0: 0x00000001 | uCode revision type[118369.756040] iwlwifi 0000:70:00.0: 0x00000030 | uCode version major[118369.756043] iwlwifi 0000:70:00.0: 0x4FA0041F | uCode version minor[118369.756046] iwlwifi 0000:70:00.0: 0x00000340 | hw version[118369.756049] iwlwifi 0000:70:00.0: 0x18489000 | board version[118369.756052] iwlwifi 0000:70:00.0: 0x80F4FC04 | hcmd[118369.756055] iwlwifi 0000:70:00.0: 0x00020000 | isr0[118369.756058] iwlwifi 0000:70:00.0: 0x00000000 | isr1[118369.756062] iwlwifi 0000:70:00.0: 0x08F00002 | isr2[118369.756065] iwlwifi 0000:70:00.0: 0x00C1FFDC | isr3[118369.756068] iwlwifi 0000:70:00.0: 0x00000000 | isr4[118369.756071] iwlwifi 0000:70:00.0: 0x003E019C | last cmd Id[118369.756074] iwlwifi 0000:70:00.0: 0x00016FF4 | wait_event[118369.756077] iwlwifi 0000:70:00.0: 0x00000000 | l2p_control[118369.756081] iwlwifi 0000:70:00.0: 0x00000020 | l2p_duration[118369.756084] iwlwifi 0000:70:00.0: 0x00000000 | l2p_mhvalid[118369.756087] iwlwifi 0000:70:00.0: 0x00000080 | l2p_addr_match[118369.756090] iwlwifi 0000:70:00.0: 0x00000009 | lmpm_pmg_sel[118369.756093] iwlwifi 0000:70:00.0: 0x00000000 | timestamp[118369.756096] iwlwifi 0000:70:00.0: 0x0000387C | flow_handler[118369.756264] iwlwifi 0000:70:00.0: Start IWL Error Log Dump:[118369.756268] iwlwifi 0000:70:00.0: Status: 0x00000040, count: 7[118369.756272] iwlwifi 0000:70:00.0: 0x20101208 | ADVANCED_SYSASSERT[118369.756275] iwlwifi 0000:70:00.0: 0x00000000 | umac branchlink1[118369.756278] iwlwifi 0000:70:00.0: 0xC008CC3C | umac branchlink2[118369.756281] iwlwifi 0000:70:00.0: 0xC008B36C | umac interruptlink1[118369.756285] iwlwifi 0000:70:00.0: 0x00000000 | umac interruptlink2[118369.756288] iwlwifi 0000:70:00.0: 0x00000001 | umac data1[118369.756291] iwlwifi 0000:70:00.0: 0x000003FF | umac data2[118369.756294] iwlwifi 0000:70:00.0: 0xDEADBEEF | umac data3[118369.756297] iwlwifi 0000:70:00.0: 0x00000030 | umac major[118369.756300] iwlwifi 0000:70:00.0: 0x4FA0041F | umac minor[118369.756303] iwlwifi 0000:70:00.0: 0x00071EB8 | frame pointer[118369.756306] iwlwifi 0000:70:00.0: 0xC0887588 | stack pointer[118369.756310] iwlwifi 0000:70:00.0: 0x003E019C | last host cmd[118369.756313] iwlwifi 0000:70:00.0: 0x00000000 | isr status reg[118369.756443] iwlwifi 0000:70:00.0: Fseq Registers:[118369.756496] iwlwifi 0000:70:00.0: 0x20000000 | FSEQ_ERROR_CODE[118369.756549] iwlwifi 0000:70:00.0: 0x80290001 | FSEQ_TOP_INIT_VERSION[118369.756603] iwlwifi 0000:70:00.0: 0x80050008 | FSEQ_CNVIO_INIT_VERSION[118369.756657] iwlwifi 0000:70:00.0: 0x0000A503 | FSEQ_OTP_VERSION[118369.756710] iwlwifi 0000:70:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION[118369.756763] iwlwifi 0000:70:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN[118369.756817] iwlwifi 0000:70:00.0: 0x00100530 | FSEQ_CNVI_ID[118369.756870] iwlwifi 0000:70:00.0: 0x00000532 | FSEQ_CNVR_ID[118369.756924] iwlwifi 0000:70:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP[118369.756980] iwlwifi 0000:70:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP[118369.757036] iwlwifi 0000:70:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM[118369.757093] iwlwifi 0000:70:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR[118369.757374] iwlwifi 0000:70:00.0: Collecting data: trigger 2 fired.[118370.451130] iwlwifi 0000:70:00.0: Applying debug destination EXTERNAL_DRAM[118370.624063] iwlwifi 0000:70:00.0: FW already configured (0) - re-configuring[118370.642080] iwlwifi 0000:70:00.0: BIOS contains WGDS but no WRDS

and modinfo iwlwifi:

filename:       /lib/modules/5.4.0-21-generic/updates/dkms/iwlwifi.koversion:        iwlwifi-stack-public:master:8324:9176b151license:        GPLauthor:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>description:    Intel(R) Wireless WiFi driver for Linuxfirmware:       iwlwifi-7265D-29.ucodefirmware:       iwlwifi-7265-17.ucodefirmware:       iwlwifi-3168-29.ucodefirmware:       iwlwifi-3160-17.ucodefirmware:       iwlwifi-7260-17.ucodefirmware:       iwlwifi-8265-36.ucodefirmware:       iwlwifi-8000C-36.ucodefirmware:       iwlwifi-9260-th-b0-jf-b0-46.ucodefirmware:       iwlwifi-9000-pu-b0-jf-b0-46.ucodefirmware:       iwlwifi-SoSnj-a0-gf-a0-55.ucodefirmware:       iwlwifi-SoSnj-a0-gf4-a0-55.ucodefirmware:       iwlwifi-ty-a0-gf-a0-55.ucodefirmware:       iwlwifi-so-a0-gf-a0-55.ucodefirmware:       iwlwifi-so-a0-hr-b0-55.ucodefirmware:       iwlwifi-so-a0-jf-b0-55.ucodefirmware:       iwlwifi-cc-a0-55.ucodefirmware:       iwlwifi-QuQnj-b0-jf-b0-55.ucodefirmware:       iwlwifi-QuZ-a0-jf-b0-55.ucodefirmware:       iwlwifi-QuZ-a0-hr-b0-55.ucodefirmware:       iwlwifi-Qu-b0-jf-b0-55.ucodefirmware:       iwlwifi-Qu-c0-hr-b0-55.ucodefirmware:       iwlwifi-QuQnj-b0-hr-b0-55.ucodefirmware:       iwlwifi-Qu-a0-jf-b0-55.ucodefirmware:       iwlwifi-Qu-a0-hr-a0-55.ucodesrcversion:     429405ECF8888645E7117B9alias:          pci:v00008086d00007AF0sv*sd00000A10bc*sc*i*alias:          pci:v00008086d00007AF0sv*sd00000510bc*sc*i*alias:          pci:v00008086d00007AF0sv*sd00000310bc*sc*i*alias:          pci:v00008086d00007AF0sv*sd000000B0bc*sc*i*alias:          pci:v00008086d00007AF0sv*sd00000090bc*sc*i*alias:          pci:v00008086d00007A70sv*sd00000A10bc*sc*i*alias:          pci:v00008086d00007A70sv*sd00000510bc*sc*i*alias:          pci:v00008086d00007A70sv*sd00000310bc*sc*i*alias:          pci:v00008086d00007A70sv*sd000000B0bc*sc*i*alias:          pci:v00008086d00007A70sv*sd00000090bc*sc*i*alias:          pci:v00008086d00002726sv*sd00000510bc*sc*i*alias:          pci:v00008086d00002726sv*sd000000B0bc*sc*i*alias:          pci:v00008086d00002726sv*sd00000090bc*sc*i*alias:          pci:v00008086d00002725sv*sd000000B0bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000A10bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000510bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000310bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000020bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000090bc*sc*i*alias:          pci:v00008086d00002725sv*sd00000000bc*sc*i*alias:          pci:v00008086d00002723sv*sd*bc*sc*i*alias:          pci:v00008086d00002720sv*sd*bc*sc*i*alias:          pci:v00008086d0000A0F0sv*sd*bc*sc*i*alias:          pci:v00008086d000043F0sv*sd*bc*sc*i*alias:          pci:v00008086d00004DF0sv*sd*bc*sc*i*alias:          pci:v00008086d00003DF0sv*sd*bc*sc*i*alias:          pci:v00008086d000034F0sv*sd*bc*sc*i*alias:          pci:v00008086d000006F0sv*sd*bc*sc*i*alias:          pci:v00008086d000002F0sv*sd*bc*sc*i*alias:          pci:v00008086d0000A370sv*sd*bc*sc*i*alias:          pci:v00008086d00009DF0sv*sd*bc*sc*i*alias:          pci:v00008086d000031DCsv*sd*bc*sc*i*alias:          pci:v00008086d000030DCsv*sd*bc*sc*i*alias:          pci:v00008086d0000271Csv*sd*bc*sc*i*alias:          pci:v00008086d0000271Bsv*sd*bc*sc*i*alias:          pci:v00008086d00002526sv*sd*bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00009074bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000014bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000012bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00001012bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00003E01bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00003E02bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00001014bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000850bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000950bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000930bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000910bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00008130bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00009110bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000810bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00008010bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00008050bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00008110bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00009010bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000150bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000050bc*sc*i*alias:          pci:v00008086d000024FDsv*sd000010D0bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00001010bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000130bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00001130bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00001110bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000110bc*sc*i*alias:          pci:v00008086d000024FDsv*sd00000010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00004010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000000bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000930bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000950bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000850bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000910bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000810bc*sc*i*alias:          pci:v00008086d000024F6sv*sd00000030bc*sc*i*alias:          pci:v00008086d000024F5sv*sd00000010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000044bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000004bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009150bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008150bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009132bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008132bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009130bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008130bc*sc*i*alias:          pci:v00008086d000024F4sv*sd0000D030bc*sc*i*alias:          pci:v00008086d000024F4sv*sd0000C030bc*sc*i*alias:          pci:v00008086d000024F4sv*sd00009030bc*sc*i*alias:          pci:v00008086d000024F4sv*sd00008030bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009110bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00009010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008110bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00008010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000B0B0bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000D0B0bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000D050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000C050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000D010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000C110bc*sc*i*alias:          pci:v00008086d000024F3sv*sd0000C010bc*sc*i*alias:          pci:v00008086d000024F4sv*sd00001030bc*sc*i*alias:          pci:v00008086d000024F4sv*sd00000030bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001150bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000150bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000250bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000050bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001110bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001012bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000012bc*sc*i*alias:          pci:v00008086d000024F3sv*sd000001F0bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000110bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001132bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000132bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001130bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000130bc*sc*i*alias:          pci:v00008086d000024F3sv*sd000010B0bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00001010bc*sc*i*alias:          pci:v00008086d000024F3sv*sd00000010bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009E10bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009400bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009000bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd0000520Abc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005212bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005F10bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005490bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005290bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005590bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005190bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005090bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005420bc*sc*i*alias:          pci:v00008086d0000095Asv*sd0000502Abc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005020bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009410bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00009310bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009510bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00009200bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00009210bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009112bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009110bc*sc*i*alias:          pci:v00008086d0000095Asv*sd0000900Abc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009012bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00009010bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005202bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005102bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005002bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005200bc*sc*i*alias:          pci:v00008086d0000095Asv*sd0000500Abc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005000bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00001010bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005400bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005510bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005410bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005412bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005012bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005C10bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005210bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005302bc*sc*i*alias:          pci:v00008086d0000095Bsv*sd00005310bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005100bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005110bc*sc*i*alias:          pci:v00008086d0000095Asv*sd00005010bc*sc*i*alias:          pci:v00008086d000024FBsv*sd00000000bc*sc*i*alias:          pci:v00008086d000024FBsv*sd00002150bc*sc*i*alias:          pci:v00008086d000024FBsv*sd00002050bc*sc*i*alias:          pci:v00008086d000024FBsv*sd00002110bc*sc*i*alias:          pci:v00008086d000024FBsv*sd00002010bc*sc*i*alias:          pci:v00008086d00003165sv*sd00008110bc*sc*i*alias:          pci:v00008086d00003165sv*sd00008010bc*sc*i*alias:          pci:v00008086d00003166sv*sd00004210bc*sc*i*alias:          pci:v00008086d00003166sv*sd00004310bc*sc*i*alias:          pci:v00008086d00003165sv*sd00004110bc*sc*i*alias:          pci:v00008086d00003165sv*sd00004510bc*sc*i*alias:          pci:v00008086d00003165sv*sd00004410bc*sc*i*alias:          pci:v00008086d00003166sv*sd00004212bc*sc*i*alias:          pci:v00008086d00003165sv*sd00004012bc*sc*i*alias:          pci:v00008086d00003165sv*sd00004010bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00001170bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00001070bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008570bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008470bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00008272bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00008370bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00008270bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008062bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008060bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008172bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008170bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008072bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00008070bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00000370bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000472bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000470bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00000272bc*sc*i*alias:          pci:v00008086d000008B4sv*sd00000270bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000062bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000060bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000172bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000170bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000072bc*sc*i*alias:          pci:v00008086d000008B3sv*sd00000070bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C420bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C220bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C02Abc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C020bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C360bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C370bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C560bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C570bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C462bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C460bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C472bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C470bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C262bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C26Abc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C260bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C272bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000CC60bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000CC70bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000C270bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C760bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C770bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C162bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C062bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C160bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C06Abc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C060bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C170bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C072bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000C070bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004420bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004220bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000402Abc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004020bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00005770bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00005170bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00005072bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00005070bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004360bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004370bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004560bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004570bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004A6Cbc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004A6Ebc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004A70bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000486Ebc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004870bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004462bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000446Abc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004460bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004472bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004470bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004262bc*sc*i*alias:          pci:v00008086d000008B2sv*sd0000426Abc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004260bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004272bc*sc*i*alias:          pci:v00008086d000008B2sv*sd00004270bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004162bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004062bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004160bc*sc*i*alias:          pci:v00008086d000008B1sv*sd0000406Abc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004060bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004C70bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004C60bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004170bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004072bc*sc*i*alias:          pci:v00008086d000008B1sv*sd00004070bc*sc*i*depends:        compat,cfg80211retpoline:      Yname:           iwlwifivermagic:       5.4.0-21-generic SMP mod_unload sig_id:         PKCS#7signer:         robby-robot Secure Boot Module Signature keysig_key:        6B:47:70:ED:AA:30:C6:9D:57:A2:FD:2C:72:4A:C7:5F:B0:7C:E4:8Bsig_hashalgo:   sha512signature:      6B:CC:62:B9:20:60:B8:11:99:E2:AC:99:84:1E:B4:E0:1E:DA:3F:D9:        C5:48:65:79:42:BB:6C:4C:22:76:8D:AD:9B:20:34:1E:DA:5A:C9:B4:        F7:FB:E3:3D:14:EB:7B:8B:F3:3C:F0:19:CA:DA:9C:53:E6:A8:E0:83:        3E:10:AF:47:4D:36:A5:99:F7:2E:4D:FF:F0:43:EE:C8:FE:77:AD:9F:        6F:24:B9:54:DC:D8:3F:75:10:D0:86:E4:98:8D:40:06:C9:EE:C8:1D:        40:B7:91:56:21:71:72:F4:7B:BF:BA:CB:DE:EF:51:07:10:C5:4B:44:        87:EC:CE:05:95:23:77:74:AA:4B:40:3F:DD:76:A6:A1:C7:8E:F1:83:        0F:1C:39:71:7C:B0:B5:0B:CE:BD:C9:AB:8F:84:97:A5:49:8E:D0:BD:        6A:E9:E3:00:58:B7:CF:B9:E6:0C:93:4C:58:01:E8:CF:56:F7:5A:CF:        AF:16:A1:2B:B6:06:FA:17:81:1E:42:82:F5:C0:9B:DF:6C:01:3C:8F:        93:14:64:19:AE:F2:D0:F4:ED:B3:26:DD:BE:62:8B:C8:60:00:67:9F:        68:00:45:37:9A:F3:3D:2D:09:25:58:00:09:1C:4D:7B:E2:B9:39:F9:        01:AF:E9:45:B3:5C:96:8E:E6:0D:00:5E:AE:A7:BA:B1parm:           debug:debug output mask (uint)parm:           xvt_default_mode:xVT is the default operation mode (default: false) (bool)parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0) (int)parm:           fw_restart:restart firmware in case of error (default true) (bool)parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)parm:           nvm_file:NVM file name (charp)parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)parm:           enable_ini:Enable debug INI TLV FW debug infrastructure (default: true (bool)parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)parm:           power_save:enable WiFi power management (default: disable) (bool)parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)parm:           disable_11ax:Disable HE capabilities (default: false) (bool)parm:           disable_msix:Disable MSI-X and use MSI instead (default: false) (bool)parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)

tried installing backport-iwlwifi-dkms per someone's suggestion in #ubuntu+1 but to no avail.

...

if this is the wrong place to ask about this, please direct me to where I should be reporting this. Had no luck w/IRC

how to connect 3 servers under two private networks

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server2 (10.0.0.2) <-->server1<--> server3 (10.0.1.3)

output in server1.etstat -rn

Kernel IP routing table Destination Gateway Genmask
Flags MSS Window irtt Iface

10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 enp131s0f1

10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 enp131s0f0

ip route

10.0.0.0/24 dev enp131s0f1 proto kernel scope link src 10.0.0.1 metric 102

10.0.1.0/24 dev enp131s0f0 proto kernel scope link src 10.0.1.4 metric 103

I have 3 servers. Server 2 and server 3 have connected to server 1 via 10G ethernet cables.

Now, server 2 and server 3 can communicate with the server 1. But, I am not sure how to let server 3 and server 2 communicate with each other directly through server 1. I am not able to connect them with more cables. I guess I can use a bridge to accomplish this. But, I have not made it work yet.

Please help.

Thanks,

Bad WIFI Connection (Ralink RT3090)

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Linux newbie here. I've tried looking at other threads, but haven't been able to figure this out.

I just installed Ubuntu 14.04 LTS (32 Bit) on an Asus 1015PEM netbook with a Ralink RT3090 wifi card. I did a complete install and wiped Windows 7 off the system.

Wifi worked great with 7, I had a 65 Mbps connection. Now it drops to 6 or 1 Mbps and I cannot connect Wirelessly.

Here is part of what I got with lshw:

*-network
description: Wireless interface product: RT3090 Wireless 802.11n 1T/1R PCIe vendor: Ralink corp. physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 00 serial: 48:5d:60:6a:80:9e width: 32 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rt2800pci driverversion=4.2.0-30-generic firmware=0.34 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:17 memory:fbff0000-fbffffff

Help!

Wi-Fi issue on laptop (likely not driver issue) [duplicate]

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I have MSI Modern 14 A10M-678XRU laptop with Kubuntu 18.04.4 LTS. Linux kernel version: 5.3.0-45-generic.

When I was installing Kubuntu I allowed installer process to use a wireless network (it's totally was working). I saw list of routers and get laptop connected to one of them. But when I booted the installed OS, I haven't seen any possible Wi-Fi connections in Network manager.

I've made my research and most of the solutions was about getting the driver. It seems like I already have the correct driver. I heard that it was the problem with 5.3.0-40-generic kernel and folks used to downgrade it to 5.3.0-28. Now I have 5.3.0-45 and I think it's not correct to downgrade that way.

I see this in driver manager:Driver manager screenshot

Also I see the network I used during installation process:Connections screenshot

sudo lshw -C network returns (first one is a wi-fi adapter, I guess):

  *-network                        description: Network controller       product: Intel Corporation       vendor: Intel Corporation       physical id: 14.3       bus info: pci@0000:00:14.3       version: 00       width: 64 bits       clock: 33MHz       capabilities: pm msi pciexpress msix bus_master cap_list       configuration: driver=iwlwifi latency=0       resources: irq:16 memory:51214000-51217fff  *-network:0       description: Ethernet interface       physical id: 2       logical name: bnep0       serial: xx:xx:xx:xx:xx:xx       capabilities: ethernet physical       configuration: broadcast=yes ip=xxx.xxx.xxx.xxx multicast=yes  *-network:1       description: Ethernet interface       physical id: 3       logical name: enp0s20f0u2       serial: xx:xx:xx:xx:xx:xx       capabilities: ethernet physical       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=xxx.xxx.xxx.xxx link=yes multicast=yes

lspci returns:

00:00.0 Host bridge: Intel Corporation Device 9b61 (rev 0c)00:02.0 VGA compatible controller: Intel Corporation Device 9b41 (rev 02)00:12.0 Signal processing controller: Intel Corporation Device 02f900:14.0 USB controller: Intel Corporation Device 02ed00:14.2 RAM memory: Intel Corporation Device 02ef00:14.3 Network controller: Intel Corporation Device 02f000:16.0 Communication controller: Intel Corporation Device 02e000:1d.0 PCI bridge: Intel Corporation Device 02b0 (rev f0)00:1d.4 PCI bridge: Intel Corporation Device 02b4 (rev f0)00:1f.0 ISA bridge: Intel Corporation Device 028400:1f.3 Audio device: Intel Corporation Device 02c800:1f.4 SMBus: Intel Corporation Device 02a300:1f.5 Serial bus controller [0c80]: Intel Corporation Device 02a402:00.0 Non-Volatile memory controller: Toshiba America Info Systems Device 0113 (rev 01)

dmesg | grep iwl returns:

[    3.369499] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)[    3.376335] iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version: 43.2.23.17[    3.376339] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM[    3.376340] iwlwifi 0000:00:14.3: Found debug configuration: 0[    3.376580] iwlwifi 0000:00:14.3: loaded firmware version 48.13675109.0 op_mode iwlmvm[    3.442181] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560, REV=0x354[    3.448988] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM[    3.449910] iwlwifi 0000:00:14.3: Allocated 0x00400000 bytes for firmware monitor.[    4.466862] iwlwifi 0000:00:14.3: Collecting data: trigger 15 fired.[    4.466947] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:[    4.466952] iwlwifi 0000:00:14.3: Status: 0x00000000, count: 1118169809[    4.466955] iwlwifi 0000:00:14.3: Loaded firmware version: 48.13675109.0[    4.466959] iwlwifi 0000:00:14.3: 0x8DC0DC91 | ADVANCED_SYSASSERT          [    4.466962] iwlwifi 0000:00:14.3: 0x9C59F178 | trm_hw_status0[    4.466964] iwlwifi 0000:00:14.3: 0x5C6F9707 | trm_hw_status1[    4.466966] iwlwifi 0000:00:14.3: 0x343CB9D5 | branchlink2[    4.466969] iwlwifi 0000:00:14.3: 0xE221137C | interruptlink1[    4.466971] iwlwifi 0000:00:14.3: 0x37B53010 | interruptlink2[    4.466973] iwlwifi 0000:00:14.3: 0x29B376BF | data1[    4.466975] iwlwifi 0000:00:14.3: 0x3D1AA791 | data2[    4.466977] iwlwifi 0000:00:14.3: 0x382EFBA2 | data3[    4.466980] iwlwifi 0000:00:14.3: 0x1274EE09 | beacon time[    4.466982] iwlwifi 0000:00:14.3: 0x94F03E22 | tsf low[    4.466984] iwlwifi 0000:00:14.3: 0x1BEE6E74 | tsf hi[    4.466986] iwlwifi 0000:00:14.3: 0x5E523FEE | time gp1[    4.466989] iwlwifi 0000:00:14.3: 0x7AA92E59 | time gp2[    4.466991] iwlwifi 0000:00:14.3: 0x0AF05939 | uCode revision type[    4.466993] iwlwifi 0000:00:14.3: 0xF7E97F2D | uCode version major[    4.466996] iwlwifi 0000:00:14.3: 0x97DD659E | uCode version minor[    4.466998] iwlwifi 0000:00:14.3: 0x835B3161 | hw version[    4.467000] iwlwifi 0000:00:14.3: 0xC0C9B0F6 | board version[    4.467002] iwlwifi 0000:00:14.3: 0xAEB02C30 | hcmd[    4.467004] iwlwifi 0000:00:14.3: 0x3C95F084 | isr0[    4.467007] iwlwifi 0000:00:14.3: 0x9677B78F | isr1[    4.467009] iwlwifi 0000:00:14.3: 0x8BE00EC2 | isr2[    4.467011] iwlwifi 0000:00:14.3: 0x490CF93B | isr3[    4.467013] iwlwifi 0000:00:14.3: 0xF69A7BD7 | isr4[    4.467015] iwlwifi 0000:00:14.3: 0x9CAFB683 | last cmd Id[    4.467017] iwlwifi 0000:00:14.3: 0x4C340552 | wait_event[    4.467020] iwlwifi 0000:00:14.3: 0x64C1104A | l2p_control[    4.467022] iwlwifi 0000:00:14.3: 0xACAF3BE1 | l2p_duration[    4.467024] iwlwifi 0000:00:14.3: 0xFDF9DC67 | l2p_mhvalid[    4.467026] iwlwifi 0000:00:14.3: 0xEDD574AD | l2p_addr_match[    4.467028] iwlwifi 0000:00:14.3: 0x4249EC01 | lmpm_pmg_sel[    4.467031] iwlwifi 0000:00:14.3: 0x6CD1954F | timestamp[    4.467033] iwlwifi 0000:00:14.3: 0xA6EC91C1 | flow_handler[    4.467069] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:[    4.467071] iwlwifi 0000:00:14.3: Status: 0x00000000, count: 7[    4.467074] iwlwifi 0000:00:14.3: 0x201013F1 | ADVANCED_SYSASSERT[    4.467076] iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1[    4.467078] iwlwifi 0000:00:14.3: 0xC008CF5C | umac branchlink2[    4.467081] iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink1[    4.467083] iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink2[    4.467085] iwlwifi 0000:00:14.3: 0x00000003 | umac data1[    4.467087] iwlwifi 0000:00:14.3: 0x20000302 | umac data2[    4.467090] iwlwifi 0000:00:14.3: 0x01300202 | umac data3[    4.467092] iwlwifi 0000:00:14.3: 0x00000030 | umac major[    4.467094] iwlwifi 0000:00:14.3: 0x13675109 | umac minor[    4.467096] iwlwifi 0000:00:14.3: 0x00005C89 | frame pointer[    4.467099] iwlwifi 0000:00:14.3: 0xC0887F58 | stack pointer[    4.467101] iwlwifi 0000:00:14.3: 0x00000000 | last host cmd[    4.467103] iwlwifi 0000:00:14.3: 0x00000000 | isr status reg[    4.467120] iwlwifi 0000:00:14.3: Fseq Registers:[    4.467139] iwlwifi 0000:00:14.3: 0x00000003 | FSEQ_ERROR_CODE[    4.467143] iwlwifi 0000:00:14.3: 0x00260000 | FSEQ_TOP_INIT_VERSION[    4.467162] iwlwifi 0000:00:14.3: 0x00000000 | FSEQ_CNVIO_INIT_VERSION[    4.467166] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION[    4.467185] iwlwifi 0000:00:14.3: 0x49F2ADA8 | FSEQ_TOP_CONTENT_VERSION[    4.467189] iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN[    4.467209] iwlwifi 0000:00:14.3: 0x20000302 | FSEQ_CNVI_ID[    4.467213] iwlwifi 0000:00:14.3: 0x01300202 | FSEQ_CNVR_ID[    4.467232] iwlwifi 0000:00:14.3: 0x20000302 | CNVI_AUX_MISC_CHIP[    4.467238] iwlwifi 0000:00:14.3: 0x01300202 | CNVR_AUX_MISC_CHIP[    4.467259] iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM[    4.467311] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR[    4.467345] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x5bfc, CPU2 Status: 0x3[    4.467347] iwlwifi 0000:00:14.3: Failed to start RT ucode: -110[    4.467352] iwlwifi 0000:00:14.3: Firmware not running - cannot dump error[    4.478983] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110

How can I get my Wi-Fi working?

Network problems: no data receivable from all Ubuntu Devices

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The following is my problem: With my two Ubuntu devices, I am unable to get data from the internet. I can ping my router successfully, but pinging other ips like 8.8.8.8 does not work. I am connected via LAN.

The problem occurs only with the network I am with right now, in other networks it works fine. Moreover, in the current network, all the other devices (Windows, Android) can connect to the internet.

Do you have any ideas, what the problem could be? Ubuntu versions of the two devices are 16 and 18.

Below some information from my ubuntu 16 device:

gnoasti@jetson-flashing-machine:~$ nmcli device showGENERAL.DEVICE:                         enp2s0GENERAL.TYPE:                           ethernetGENERAL.HWADDR:                         E8:03:9A:0E:DC:2CGENERAL.MTU:                            1500GENERAL.STATE:                          100 (connected)GENERAL.CONNECTION:                     Wired connection 1GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/0WIRED-PROPERTIES.CARRIER:               onIP4.ADDRESS[1]:                         169.254.0.29/24IP4.GATEWAY:                            169.254.0.1IP4.DNS[1]:                             169.254.0.1IP6.ADDRESS[1]:                         fe80::e06d:31c0:adc3:a8e5/64IP6.GATEWAY:                            GENERAL.DEVICE:                         wlp1s0GENERAL.TYPE:                           wifiGENERAL.HWADDR:                         C4:85:08:68:8E:4AGENERAL.MTU:                            0GENERAL.STATE:                          30 (disconnected)GENERAL.CONNECTION:                     --GENERAL.CON-PATH:                       --GENERAL.DEVICE:                         loGENERAL.TYPE:                           loopbackGENERAL.HWADDR:                         00:00:00:00:00:00GENERAL.MTU:                            65536GENERAL.STATE:                          10 (unmanaged)GENERAL.CONNECTION:                     --GENERAL.CON-PATH:                       --IP4.ADDRESS[1]:                         127.0.0.1/8IP4.GATEWAY:                            IP6.ADDRESS[1]:                         ::1/128IP6.GATEWAY:                            gnoasti@jetson-flashing-machine:~$ route -nKernel IP routing tableDestination     Gateway         Genmask         Flags Metric Ref    Use Iface0.0.0.0         169.254.0.1     0.0.0.0         UG    100    0        0 enp2s0169.254.0.0     0.0.0.0         255.255.255.0   U     100    0        0 enp2s0gnoasti@jetson-flashing-machine:~$ ping 169.254.0.1PING 169.254.0.1 (169.254.0.1) 56(84) bytes of data.64 bytes from 169.254.0.1: icmp_seq=1 ttl=64 time=0.721 ms64 bytes from 169.254.0.1: icmp_seq=2 ttl=64 time=0.650 ms^C--- 169.254.0.1 ping statistics ---2 packets transmitted, 2 received, 0% packet loss, time 1026msrtt min/avg/max/mdev = 0.650/0.685/0.721/0.044 msgnoasti@jetson-flashing-machine:~$ ping 8.8.8.8PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.^C--- 8.8.8.8 ping statistics ---3 packets transmitted, 0 received, 100% packet loss, time 2040ms

Thanks a lot in advance!

"Some results have been removed because Restricted Mode is enabled by your network administrator." but I'm sure the restricted mode is off

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"Some results have been removed because Restricted Mode is enabled by your network administrator."I encounter this error on youtube in all browsers. I'm sure the restricted mode is off. Besides, the error continues whether or not I am logged in. I cannot view many videos on youtube without using vpn. Windows is also installed on my computer, there is no such problem.I am using ubuntu 18.04.4 lts

Ubuntu 19.04 extremly slow wifi

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I was a beginner of Linux. I am struggling to get my wifi on track. I've tried many ways across the internet. Like disabling 802.11n, modify /etc/nsswitch.conf, close the power management off, download the latest version... I really need some help with this slow wifi!

Configuration:

  • Motherboard: Asus Gaming X570+
  • CPU: AMD R9
  • NIC: ASUS AC 9260
  • Kernel: 5.3.0-45-generic
  • Ubuntu: 19.04

BTW I've download the drive a drag it in /lib/firmware


Having some trouble authenticating via proxy in order to use apt-get successfully on a corporate network

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Apologies if this is a basic question, I've recently taken ownership of our department's internal server so I'm having to deal with issues beyond my (very basic) knowledge.


Context

Our server is on a corporate network which requires corporate proxy authentication (e.g. enter corporate username and password). This is not an issue on the Windows machines on that network - when a web browser is opened the user is prompted to authenticate. However, when using a browser on Linux the user is not prompted to authenticate, the browser simply shows a message saying authentication is required.


Problem 1 - Internet Access would be useful

At the moment I have to walk to my desk on another floor if I need to look something up, because I cannot get Internet access from this machine since I cannot* (*do not know how to) authenticate. It would be useful to have the ability to authenticate so I can use a web browser.


Problem 2 - Packages cannot be updated

When I attempt to perform updates using sudo apt-get update or sudo apt-get install [package], there are errors which I believe are caused due to lack of authentication.

After performing sudo apt-get update, I get errors like W: Failed to fetch [link] 401 Authorization Required. (For some reason some http://us.archive.ubuntu.com trusty/ sources work correctly, and some throw the same error).

This is a major problem, as I need to be able to update packages on the server.


Steps Taken

  • I have installed cntlm via sudo apt-get install cntlm (it works from one of the few ubuntu repositories that randomly work).
  • I edited the configuration at /etc/cntlm.conf and added my username, the domain, and the proxy.
  • I started the service (sudo /etc/init.d/cntlm start)
  • I tested the service (sudo cntlm -I -M http://www.google.com/) and the response was Config Profile 1/4... Auth not required (HTTP code: 307) Your proxy is open, you don't need another proxy.

  • I tried performing sudo apt-get update again and still receive the same error message. (401 Authorization Required)
  • (Whoops! My mistake! I see I need to configure apt proxy settings manually...)
  • I added the line Acquire::http::Proxy "http://localhost:3128"; to /etc/apt/apt.conf.
  • I restarted cntlm. (sudo /etc/init.d/cntlm stop, sudo /etc/init.d/cntlm start)

  • I performed sudo apt-get update ... and it hit 0% [Waiting for headers] [Waiting for headers] [Waiting for headers] [Waiting f - and just stopped there.
  • I performed sudo apt-get clean before performing sudo apt-get update - this started working and then stopped at 19% [Waiting for headers]
  • I performed sudo apt-get clean again before performing sudo apt-get update - this started working and then stopped at 0% [Waiting for headers]
  • I tried this a third time (sudo apt-get clean, sudo apt-get update) and it stopped at 20% [Waiting for headers]

  • I researched this subsequent problem and found an answer on AskUbuntu suggesting this may be an issue with IPv6 causing ICS to halt for a while when it receives concurrent connections.
  • I checked the /etc/sysctl.conf file and discovered the IPv6 already appears to be disabled... (The lines net.ipv6.conf.all.disable_ipv6 = 1, net.ipv6.conf.default.disable_ipv6 = 1, and net.ipv6.conf.lo.disable_ipv6 = 1 are already in the config file.)
  • (I'm now drawing a bit of a blank! The symptoms match the hypothesized IPv6 issue however if it is already disabled that doesn't seem to be able to be the cause)
  • I performed sudo apt-get clean and sudo apt-get update a fourth time (What the hell - why not?) and it hung on 24% [Waiting for Headers] this time, but first it hit a bunch of repositories. A repository which used to trigger errors did not do so now (http://cran.rstudio.com trusty /) but one which used to trigger errors now triggered a different error, Received HTTP code 501 from proxy after CONNECT.

Does anyone know how to make the internal speaker beep when my PC's connection to the router is lost?

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I want to make the internal speaker (or buzzer) of my computer beep using the beep command and a little bit of shell scripting to alert me whenever someone pulls the wrong plug and accidentally kill the router, or disconnects the wrong ethernet cable. I also want to have the sound stop if the connection is regained. This would be useful because my router is in a different room and I can't always be there to catch any problems.


OS: Lubuntu 18.04 Bionic

Wifi issues with Ubuntu 18.04

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I'm running Ubuntu 18.04 on a Lenovo laptop, and I'm having lots of issues with my wifi.Originally, I installed Wicd, that made the connection better, but caused issues by making my wpa_supplicant fail. Now I'm back on network manager, and when I boot up, I instantaneously get good internet speeds, but then it's almost like my wifi "locks up" and my speeds drop to below 1mbps.

Here is my info:

# hwinfo --wlan  --shortnetwork:                                                          wlp9s0               Intel Centrino Wireless-N 1000 BGN# uname -aLinux cornel-ThinkPad-E520 4.15.0-91-generic #92-Ubuntu SMP Fri Feb 28 11:09:48 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux# lsb_release -aNo LSB modules are available.Distributor ID: UbuntuDescription:    Ubuntu 18.04.4 LTSRelease:    18.04Codename:   bionic→ lspci00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4)00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b4)00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset LPC Controller (rev 04)00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 04)00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6630M/6650M/6750M/7670M/7690M]03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)04:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]→ sudo iwconfig wlp9s0 | grep Quality      Link Quality=57/70  Signal level=-53 dBm  → ifconfigdocker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255        ether 02:42:72:7e:6d:f9  txqueuelen 0  (Ethernet)        RX packets 0  bytes 0 (0.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0enp3s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500        ether f0:de:f1:6b:92:b7  txqueuelen 1000  (Ethernet)        RX packets 0  bytes 0 (0.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        inet6 ::1  prefixlen 128  scopeid 0x10<host>        loop  txqueuelen 1000  (Local Loopback)        RX packets 1918  bytes 170637 (170.6 KB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 1918  bytes 170637 (170.6 KB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0wlp9s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.8.5  netmask 255.255.255.0  broadcast 192.168.8.255        inet6 fe80::bd97:1f4b:4f54:caa1  prefixlen 64  scopeid 0x20<link>        ether 8c:a9:82:be:fe:6a  txqueuelen 1000  (Ethernet)        RX packets 26594  bytes 24943171 (24.9 MB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 24914  bytes 11128513 (11.1 MB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

I don't know what to do to fix the wifi, but it's really getting me down as I've been struggling for a while.

Ubuntu 18.04 problem: Wifi disconnects after a few seconds

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I am experiencing this problem the last few days - needless to say how annoying it is!When I restart the laptop, the connection seems to be working for the first few seconds (approx < 1/2 min) but then my wifi icon on the toolbar turns to ? and all internet connectivity is gone (I also cannot access the router page).

I am running Ubuntu 18.04 dual boot with Windows 10 and the wifi seems to be working normally on Windows, so it doesn't seem to be some kind of hardware issue.

Obtain an environment variable over the network from another computer

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I have a myuserid@remotemachine on my network to which I have access via public/private key ssh (ie, doesn't prompt for password, logs me straight in). Is there a way, from Python (or bash, or any other standard linux command) on my local computer, to read one of myuserid's environment variables on remotemachine without needing to run a pre-prepared remote script?

Set static IPs to multiple interfaces Ubuntu 18.04.4 LTS (Bionic Beaver)

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I'm trying to set a static IP on two interfaces (ens160 "Main") and (ens192 "I added later"). I tried setting up configuration files for netplan (/etc/netplan/01-network-card.yaml) and for (/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg) each at a time then both. Noting that all 3 are VMs on a Vmware ESXI 6.7 Hypervisor.

The main issue is with the ens192 interface can ping itself (ping -I ens192 192.168.20.41) but it's not able to reach other IPs (not even 192.168.20.241 which is on the same machine).

any help is much appreciated since I've been stuck with this problem for days and I need to set up 2 other nodes (lab environment) to proceed with my Kubernetes course.

$ip a (results)

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00inet 127.0.0.1/8 scope host lo   valid_lft forever preferred_lft foreverinet6 ::1/128 scope host    valid_lft forever preferred_lft forever2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000    link/ether 00:0c:29:ee:9e:fb brd ff:ff:ff:ff:ff:ff    inet 192.168.20.241/22 brd 192.168.23.255 scope global ens160       valid_lft forever preferred_lft forever    inet6 fe80::20c:29ff:feee:9efb/64 scope link        valid_lft forever preferred_lft forever3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000    link/ether 00:0c:29:ee:9e:05 brd ff:ff:ff:ff:ff:ff    inet 192.168.20.41/22 brd 192.168.23.255 scope global ens192       valid_lft forever preferred_lft forever    inet6 fe80::20c:29ff:feee:9e05/64 scope link        valid_lft forever preferred_lft forever4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default     link/ether 02:42:8b:5d:b5:35 brd ff:ff:ff:ff:ff:ff    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0       valid_lft forever preferred_lft forever5: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default     link/ether 76:01:b0:4a:cf:0f brd ff:ff:ff:ff:ff:ff    inet 10.1.98.0/32 scope global flannel.1       valid_lft forever preferred_lft forever    inet6 fe80::7401:b0ff:fe4a:cf0f/64 scope link        valid_lft forever preferred_lft forever

/etc/netplan/01-network-card.yaml

network:ethernets:    ens160:        addresses:        - 192.168.20.241/22        gateway4: 192.168.20.1        nameservers:            addresses:            - 192.168.20.1    ens192:        addresses:        - 192.168.20.41/22        gateway4: 192.168.20.1        nameservers:            addresses:            - 192.168.20.1version: 2

/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg

network:ethernets:    ens160:      addresses:      - 192.168.20.241/22      gateway4: 192.168.20.1      nameservers:        addresses:        - 192.168.20.1    ens160:      addresses:      - 192.168.20.41/22      gateway4: 192.168.20.1      nameservers:        addresses:        - 192.168.20.1  version: 2

USB WiFi Adapter driver installed but don't work

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I've buyed a Wifi Adapter but there isn't the driver for Linux. I have installaed the driver on Windows and read the code 8811CU. I followed too much guide but it never work, this is the most detailed:

After have followed this the WiFi adapter don't work, there isn't the wlan interface and the led is OFF.

Here some output:

#sudo usb_modeswitch -KW -v 0bda -p 1a2broot@user-PC-Desktop:/usr/src/rtl8821CU# lsusbBus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubBus 001 Device 005: ID 0bda:1a2b Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 003 Device 003: ID 04b3:3025 IBM Corp. NetVista Full Width KeyboardBus 003 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical MouseBus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubafter:root@user-PC-Desktop:/usr/src/rtl8821CU# lsusbBus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubBus 001 Device 006: ID 0bda:c811 Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 003 Device 003: ID 04b3:3025 IBM Corp. NetVista Full Width KeyboardBus 003 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical MouseBus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubroot@user-PC-Desktop:~# sudo lshw           description: USB controller          product: MCP78S [GeForce 8200] EHCI USB 2.0 Controller          vendor: NVIDIA Corporation          physical id: 2.1          bus info: pci@0000:00:02.1          version: a1          width: 32 bits          clock: 66MHz          capabilities: debug pm ehci bus_master cap_list          configuration: driver=ehci-pci latency=0 maxlatency=1 mingnt=3          resources: irq:22 memory:fde7ec00-fde7ecff        *-usbhost             product: EHCI Host Controller             vendor: Linux 5.3.0-45-generic ehci_hcd             physical id: 1             bus info: usb@1             logical name: usb1             version: 5.03             capabilities: usb-2.00             configuration: driver=hub slots=6 speed=480Mbit/s           *-usb UNCLAIMED                description: Generic USB device                product: 802.11ac NIC                vendor: Realtek                physical id: 6                bus info: usb@1:6                version: 2.00                serial: 123456                capabilities: usb-2.00                configuration: maxpower=500mA speed=480Mbit/sroot@user-PC-Desktop:~# sudo lshw -c network  *-network                        description: Ethernet interface       product: MCP77 Ethernet       vendor: NVIDIA Corporation       physical id: a       bus info: pci@0000:00:0a.0       logical name: enp0s10       version: a2       serial: 00:21:97:ec:24:25       size: 100Mbit/s       capacity: 100Mbit/s       width: 32 bits       clock: 66MHz       capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation       configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.64 duplex=full ip=192.168.1.115 latency=0 link=yes maxlatency=20 mingnt=1 multicast=yes port=MII speed=100Mbit/s       resources: irq:30 memory:fde7c000-fde7cfff ioport:c880(size=8) memory:fde7e400-fde7e4ff memory:fde7e000-fde7e00froot@user-PC-Desktop:~# lspci -nnk | grep -iA2 net00:0a.0 Ethernet controller [0200]: NVIDIA Corporation MCP77 Ethernet [10de:0760] (rev a2)    Subsystem: Elitegroup Computer Systems MCP77 Ethernet [1019:1b67]    Kernel driver in use: forcedeth    Kernel modules: forcedethroot@user-PC-Desktop:~# lsmodModule                  Size  Used bynls_iso8859_1          16384  1snd_hda_codec_via      20480  1snd_hda_codec_generic    81920  1 snd_hda_codec_vialedtrig_audio          16384  1 snd_hda_codec_genericsnd_hda_codec_hdmi     57344  1snd_hda_intel          53248  4snd_seq_midi           20480  0snd_seq_midi_event     16384  1 snd_seq_midiedac_mce_amd           32768  0snd_intel_nhlt         20480  1 snd_hda_intelsnd_hda_codec         131072  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_viasnd_hda_core           90112  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_viaserio_raw              20480  0input_leds             16384  0snd_rawmidi            36864  1 snd_seq_midisnd_hwdep              20480  1 snd_hda_codecsnd_seq                69632  2 snd_seq_midi,snd_seq_midi_eventk8temp                 16384  0snd_pcm               102400  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_corewmi_bmof               16384  0snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidisnd_timer              36864  2 snd_seq,snd_pcmsnd                    86016  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_hda_codec_via,snd_pcm,snd_rawmidisoundcore              16384  1 sndmac_hid                16384  0sch_fq_codel           20480  2parport_pc             40960  1ppdev                  24576  0lp                     20480  0parport                53248  3 parport_pc,lp,ppdevip_tables              32768  0x_tables               40960  1 ip_tablesautofs4                45056  2uas                    24576  0usb_storage            73728  2 uashid_generic            16384  0usbhid                 53248  0hid                   126976  2 usbhid,hid_genericradeon               1454080  11i2c_algo_bit           16384  1 radeonttm                   102400  1 radeondrm_kms_helper        180224  1 radeonsyscopyarea            16384  1 drm_kms_helpersysfillrect            16384  1 drm_kms_helpersysimgblt              16384  1 drm_kms_helperpsmouse               151552  0fb_sys_fops            16384  1 drm_kms_helperdrm                   491520  6 drm_kms_helper,radeon,ttmahci                   40960  0pata_acpi              16384  0forcedeth              73728  0libahci                32768  1 ahcipata_amd               20480  1i2c_nforce2            20480  0video                  49152  0floppy                 81920  0wmi                    32768  1 wmi_bmofroot@user-PC-Desktop:~# ls /lib/modules/$(uname -r)/kernel/drivers/net/wireless/realtek/rtl8821cu8821cu.koroot@user-PC-Desktop:~# sudo dkms statusbcmwl, 6.30.223.271+bdcom, 5.3.0-45-generic, x86_64: installedrtl8821CU, 5.4.1, 5.3.0-45-generic, x86_64: installed (WARNING! Diff between built and installed module!)root@user-PC-Desktop:~# sudo rfkill list allroot@user-PC-Desktop:~# iwconfig lo        no wireless extensions.enp0s10   no wireless extensions.

Can someone help me to solve this problem???


Wireless not working when using UBUNTU 13.04 on DELL Precision M6300

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I installed UBUNTU 13.04 dual boot with Windows 8. all working perfectly well except my wireless.the wireless does not turn on or off. neither it detects any wireless system.Fn+F2 does not turn on or off the wireless network. the light indication of Wi-Fi also doesnt turn on. it is off constantly.i think it contains: Dell Wireless 1390 or 1395 WLAN MiniCard.plx help asap! waiting.

Can private IP address be the same as public IP address?

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I checked my public ip address at http://whatismyipaddress.com, it showed me 137.189.34.166. When I typed ifconfig in terminal it showed me my private ip address is 137.189.34.166, too. Does that mean my computer is connected to the Internet directly? But it seems that I do have a router with ip address 137.189.35.254(by running route). When I run traceroute google.com, it showed me,

1 137.189.35.253 2 137.189.192.253 ...

The first hot it went is not 137.189.35.254 but 137.189.35.253. I'm totally confused.

My question is,

  1. Can private IP address be the same as public IP address?

  2. The first stop that packets should be sent to is the local router, right?

I'm not good at understanding network things. Could anyone help me?

Ubuntu 18.04 (ESXi 6.5) -- Live Server crashing -- Pasting 21 Lines

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Was wondering if anyone has experienced this with 18.04 where if you paste 20+ lines, where it hard locks the system. Looking in ESXi, Ubuntu usually uses about 29 MHz, but after pasting 20~21 lines, CPU spikes to 3.1 GHz and hard locks. Then I have to go to ESXi and reset it. I'm using this VM for a jumpbox for my lab network. Nothing is showing in the /var/log/kern.log as to point towards an issue. Below is what I was pasting:

set interfaces ge-0/0/27 disableset interfaces ge-0/0/28 disableset interfaces ge-0/0/29 disableset interfaces ge-0/0/30 disableset interfaces ge-0/0/31 disableset interfaces ge-0/0/32 disableset interfaces ge-0/0/33 disableset interfaces ge-0/0/34 disableset interfaces ge-0/0/35 disableset interfaces ge-0/0/36 disableset interfaces ge-0/0/37 disableset interfaces ge-0/0/38 disableset interfaces ge-0/0/39 disableset interfaces ge-0/0/40 disableset interfaces ge-0/0/41 disableset interfaces ge-0/0/42 disableset interfaces ge-0/0/43 disableset interfaces ge-0/0/44 disableset interfaces ge-0/0/45 disableset interfaces ge-0/0/46 disableset interfaces ge-0/0/47 disable

Ubuntu 18.04 installation on Dell inspiron 14 5000. WIfi stopped working after software update

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Please note I have been using ubuntu for 2 full days. My apologies if not enough information.

After first installation Wifi works fine. (kernel = generic 5.3.0.28)After software update, Wifi is gone. (kernel = generic 5.3.0.45)

I can see Wifi under settings but I get the message "No Wifi-adaptor found"

I tried "sudo apt-get install --reinstall bcmwl-kernel-source" but this does not work

If I boot with older generic 5.3.0.28 using advanced ubuntu settings in bootloader, all works fine.

If I boot with generic 5.3.0.45 after software updates/upgrades, Wifi is gone.

I do not have the ability for wired connection.

Do I need to log in always with older 5.3.0.28?How can I fix?

cannot access my webserver from outside the network

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I have set up a web server on port 3000 and set up port forwarding on the router to correctly forward all requests from port 80 to 3000 on my machine by stating the local ip of my machine. I have also disabled the firewall. Still when I try to hit the server using public IP of the network, the browser shows the address is unreachable. I am giving below the output of route -n command.

Kernel IP routing tableDestination     Gateway         Genmask         Flags Metric Ref    Use Iface0.0.0.0         192.168.0.1     0.0.0.0         UG    600    0        0 wlp13s0169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlp13s0192.168.0.0     0.0.0.0         255.255.255.0   U     600    0        0 wlp13s0

I really can't figure out what error is causing this to happen. If you people need some more info, I would edit the question accordingly.

EDIT

I checked if my port 80 is open on canyouseeme.org. It shows it cannot see the service due to no route to host. Does it mean that the IP is blocking port 80?

Thank you!!

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