Questions tagged [networking]

Managing and using network connectivity on a Ubuntu system

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Dell Wireless 5808 Gobi 4G LTE (Sierra Wireless MC7355) not connecting in Ubuntu 19.10

I've recently bought a Dell XFR E6420 with a Dell Wireless 5808 Gobi 4G LTE modem. It works fine in Windows, but under Ubuntu 19.10 it won't connect at all. It gets recognized, but won't connect to ...
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Why does Samba list the whole server folder-structure

I'm rather new to Linux and Samba and tried to create a share to store some files on my server. This is what I did: Installed samba Created Unix user Created Samba user Created the folder I want to ...
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18.04 server: AWS slow network upload

I have an AWS EC2 instance of Ubuntu 18.04.3 LTS. When I created the instance, the network was 1 gbps up and down. After using it for awhile, the upload is stuck at 4.2 mbps, but with 1 gbps download....
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Connection but no internet, wireless or ethernet

I know there are a lot of posts about this issue but none of the ones I have seen are quite the same as the issue I am having. Sorry if I have missed some. I am running Ubuntu 18.04. I have an ...
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How can I install Broadcom Wireless Adapter BCM4352 802.11ac PCID [14e4:43b1] (rev 03) on Ubuntu 18.04.3 LTS?

I have Asus G46V laptop running Ubuntu 18.04.3 LTS and when I open WiFi settings, I get this message: No Wifi adapter found I tried this solution and this one but with no luck. Here is my network ...
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Having trouble with installing drivers for TL-WN722N

I have some major issues when I try to install my new TL-WN722N V3. I've tried with a bunch of different rlt8188eu drivers wich TP-Link suggest. Whenever I try to compile the drivers it always fails. ...
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Ubuntu 16.04 server no network

this is my first time setting up a server. I have a Huawei RH1288 V3 set and ready. Upon connecting the lan cable from my router to the server, I realise that there were no green lights coming from ...
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1answer
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Wifi doesn't want to connect

I got a problem on my Ubuntu 18.04 with the WiFi. I can see all the WiFi networks around me, but when I try to connect the PC is trying to do for about about 30 seconds (there is the circle waiting ...
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Setup tls vpn on ubuntu

What is tls tunnel and how can i setup tls vpn on newly installed ubuntu. Only 301 essential sites can be accessed on 2G network in my region and everything else is blocked even most vpns. I cannot ...
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I'm having an issue while trying to fix my connection [duplicate]

I have a Toshiba Satellite C-55 and recently changed to Ubuntu 19.10, I'm completely new to Ubuntu, so there's nothing much I know what to do, except googling before asking, but I'm stuck. My internet ...
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Two NICs - How redirect traffic to specific NIC

I need help to setup two NICs from my laptop. I want to have all inbound/outbound traffic from/to the network 192.168.1.0 (Local Network) to be sent to the eth0 (Wired) and I want to have all other ...
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Wifi not detected in Kubuntu 18.04

I just finished installing Kubuntu 18.04 on my brand new Dell XPS 13, but the wifi card doesn't seem to be recognized. The tray icon only shows the wired connection. iwconfig output: lo no ...
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VSFTPD server, free hosting?/ What next?

I've been trying to host a ftp server from vpftpd and ufw. I've setup a dynamic DNS, configured vpftpd from the conf file, which i can ping and run from my notebook and my android phone via termux. I'...
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Wifi adapter is disabled

I just installed kubuntu 19.10 in my hp notebook. It shows network disabled for wifi, ethernet or bluetooth. How to fix it?
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How to prevent the route with metric 0 to be created

My PC has two NICs,ethernet and wifi. I wnat to set higher metric to wifi NIC. I use systemd-networkd. $ cat /etc/systemd/network/10-wired.network [Match] Name=enp0s25 [Network] Address=192.168.3....
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Setting network address for 2 different interfaces with dhcp and static

so, I have set an IP for both interfaces (enp0s3 and enp0s8), the enp0s3 is using DHCP configuration and the enp0s8 is using static configuration. auto lo iface lo inet loopback auto enp0s3 iface ...
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26 views

The service providing the VPN connection was stopped

I have been trying to connect to a VPN using Openconnect and the Kubuntu Connections GUI. I was able to connect to the VPN using the GUI several months ago but after attempting it today it will not ...
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Two default routes: ethernet + wifi — error? consequence?

In my netplan config I have two interfaces: network: version: 2 renderer: networkd ethernets: ethusb1: dhcp4: yes dhcp6: yes wifis: wlp3s0: dhcp4: yes dhcp6: ...
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unable to connect to internet with osboxes.org ubuntu server 19.10 image on virtualbox

I booted (in virtualbox) an ubuntu 19.10 server image obtained from here To enable networking I tried to add a netplan configuration. (Adapted from here) In short I created the following file: /etc/...
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Internal network does not work as it should (Virtual Box)

(VIRTUAL BOX)I have a ubuntu server that has two network interfaces, one of bridge adapter and another in internal network, the problem is that you want to use a service within the internal network, ...
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On Ubuntu 19.04 network doesn't work at all [closed]

In my home, I have a network router. My router connects through PPPoE to my internet provider and shares the internet by lan. I tried to install Ubuntu 19.04 on my home PC. The Internet didn't work ...
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How can I ensure that all of my internet traffic uses my OpenVPN, even after reboot?

I would like to allow my PC to communicate to all LAN devices (10.0.0.0/24) but only allow traffic outside of my network to use my ExpressVPN connection. ExpressVPN does not provide a list of IPs so ...
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53 views

18.04.3 LTS installation media do not detect network controllers on a 10th-generation NUC

The 18.04.3 LTS installation media for Kubuntu (probably other distributions, too) do not detect the network controllers on 10th Generation NUCs. These are the late-2019 models with 10th-generation ...
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Netgear A6100 wireless adapter not working on ubuntu 16.04

I am using Netgear A6100 wireless adapter to connect my desktop to the wi-fi network. I am using a community wifi. On desktop, I have Ubuntu 16.04 with kernel version 4.15. I copied the driver from ...
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No Wi-Fi Adapter Fond (Lenovo Yoga L13, Ubuntu 18.04 LTS)

have the following problem: First I don't have an ethernet adapter and if I go to Setting > Wifi there is "No Wi-Fi adapter Found". I have following data lspci | grep Network Network controller: ...
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Can I whitelist a particular url/IP with Firejail for my python application?

I am using Firejail to sandbox my python application on Ubuntu 18.04. I want to restrict network access for this particular app and not for every application. I am struggling with iptables, is there ...
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catch network app

I want to catch an unknown application that use internet time to time and may have very short internet connection session. wireshark may could be ideal for that but it has no process name or PID of ...
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Wireless disconnecting randomly yet persistently

I've had a very annoying issue in the past 10 days or so, the general idea is that wireless connectivity is lost pretty randomly ("Activation of network connection failed"). After this happens, the ...
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1answer
43 views

Bluetooth keeps searching for devices without finding any on Ubuntu 18.04 LTS

I've been trying to fix this Problem fo a while, I have a Lenovo Z50-70 20354 I tried this solution nothing worked I don't know what info you need so I'm posting this : This is the Output for this ...
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nload Broken on Ubuntu 18

nload displays network activity with ascii graphics but on ubuntu 18.04 these graphics are all scrambled while on ubuntu 16 it's OK. Is there any way to fix it?
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19.10: Qualcomm Atheros QCA6174 WiFi works on one network out of many

Update: Not a solution, but I bought an Intel Wireless-ac 9260 and installed it. No problems and everything works out of the box. Also, the speeds are higher. Until recently, I had no problems with ...
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TP-Link AC600 Archer T2U Nano driver for Ubuntu 18.04 not working

My Ubuntu version is 18.04.3 LTS The laptop is Asus G46V I followed the steps here but with no luck. Here is the first solution: sudo apt install git dkms git clone https://github.com/jeremyb31/...
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Wireless not showing (wifi adapter not found) at all on Ubuntu 19.10 on Dell Precision 5510

My Kernel version is 5.3.0-26-generic output of rfkill list all 1: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 2: dell-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 5: hci0: ...
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1answer
44 views

TP-Link Archer 4TE drivers - where to get them from?

while waiting for a PC to arrive I started looking into driver issues (this is my first PC I'm going to use Ubuntu on, previously I only dealt with it on laptops) and couldn't find much info on the ...
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netplan route source/destination yaml

I have network setup where I have dual nic’s connected directly with fibers to a device which sends data only. This device never listen. The problem is that this device only have one source address, ...
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Routing ( route command ) between two Network Cards

I got stuck with this network situation with my workwhere I need some of your advice, Please help Server : Ubuntu 18.04 Two network Card . Nic 1 : eth0 ( Has Access to Internet ) eth0 IP: 172....
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18:04: WiFi OK but ethernet LAN connection fails

i just installed ubuntu 18.04 lts on a lap top but hav no lan but i do have wireless any ideas on that sudo lshw -c network results network description: Wireless interface ...
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1answer
56 views

Help with finding a “default” IP on a device with static ip [closed]

So I had a device that I connect via ethernet. It had a default interface file like this one: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp hostname dummy I changed dhcp to ...
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1answer
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wget of redis is not working in docker container with Debian 9 on Ubuntu host

I have a very simple Docker file FROM openjdk:11 ENTRYPOINT ["/bin/bash"] And I have 2 machines with Ubuntu. First machine: Ubuntu 18.04.1, Docker version 18.06.0-ce, build 0ffa825 In the docker ...
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1answer
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create shared folder that works on linux device?

I'm new to Linux and trying to solve this problem I have a hifi streamer with a removable 2.5' HDD running modified LMS server on top of some kind of Linux (musical fidelity encore). It has a default ...
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Cannot connect to Meraki VPN

I'm struggling to connect my Ubuntu 19.10 machine to a Meraki VPN. I've tried the suggestions here, but with no success. Output from sudo /usr/lib/NetworkManager/nm-l2tp-service --debug (with the ip ...
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1answer
53 views

No Wi-Fi Adaptor Found - Ubuntu - iwlwifi

I installed ubuntu 18.04 on HP envy. However I am getting issue setting up wifi :- No Wi-Fi adapter found The output of following command is :- lspci -nnk | grep -A2 0280 Kernel driver in use: ...
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Passing custom vars to preseed-file i.e. individual names for hosts and volume groups

) my first question here is about passing custom vars to preseed configuration for the individualization of installed machines on 18.04.3 LTS I want to give a "temporary hostname" to the machines, ...
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Installing Netgear A7000 on Ubuntu 18.04.03 after fresh installation makes rebooting fail

Recently until yesterday I accidentally uninstalled all my packages and drivers leaving me without internet even from an ethernet cable. I managed to do a fresh re-installation of Ubuntu 18.04.03, ...
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122 views

Unstable wired internet connection under Ubuntu 18.04 LTS

I have recently got a new notebook and installed Ubuntu 18.04 LTS. For some months, everything worked just fine, but then suddenly the Ethernet connection "broke". It's not like I can't connect to the ...
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How can I investigate why my WLAN keeps reconnecting?

I have problems with the wireless internet connection at work. At home it works fine, so I guess it is not my computer / hardware. How can I investigate the problem? What are potential reasons for ...
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Packet loss on security mirrors for Eoan

It seems this host in particular is experiencing packet loss: $ ping security.ubuntu.com PING security.ubuntu.com (91.189.88.162) 56(84) bytes of data. 64 bytes from yukinko.canonical.com (91.189.88....
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Networking ( file share ) using a LAN cable in 18.04

I have 2 PCs, both running 18.04. I want to connect them using a normal LAN cable and share files between them. PC 2 has Samba and a folder is shared. PC 2 is kind of my storage PC and transfer ...
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54 views

Intel® Dual Band Wireless-AC 3160 not working properly on 19.04

Bare with me folks I'm an ubuntu newb... Running an HP ENVY laptop with Ubuntu 19.10 and the wifi keeps dropping signal and constantly needs a prod to liven it up. After a bit of a fight with an ...
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Ubuntu 18.04 stopps resolving .local domains, but not always

I've been trying to format a Drobo to use with linux. While I was doing this ubuntu suddenly stopped resolving .local domains, breaking big parts of my configuration. I could fix this by just using ...