Questions tagged [networking]

Managing and using network connectivity on a Ubuntu system

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Slow wifi in Ubuntu 18.04 with Realtek RTL8723DE device [duplicate]

I am facing an issue in my HP laptop which is running Ubantu 18.04.3 when I connect with my cellphone hotspot it is running fine but in case of router it is not even connecting. I have tried alot of ...
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1answer
1k views

Freshclam is Using Lots of Mobile Data

For the past two days, my data usage has increased even though I did nothing more than normal data surfing. I installed nethogs and found this application (/usr/bin/freshclam) drinking my data ...
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1answer
33 views

Changing the network interface for specific user?

I have more than two users on my system and two different network interfaces and I would like to make my second user to preferre one of them. One of these devices are eth0 and tun1. Is it possible to ...
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1answer
37 views

What does “user account” in samba share actually mean?

I'm returning to Ubuntu after many years, but in my LAN I still need some machines with Windows 7. Right now I'm running Ubuntu 19.10 and I want to share a folder. I did the following steps: browse ...
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How to set 2 network addapters using virtualbox?

I have installed a VBOX virtual machine with Ubuntu 18.04.03 LTS in which I want to use 2 network connections, a NAT and a Bridge ones. Show when I enable this adapters and start Ubuntu virtual ...
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1answer
49 views

Dual boot drivers loss

every time windows get an update my Ubuntu (which is installed in another partition of another disk) loses his Wirelless drivers so i don't have any chance of conecting to the internet. I had a ...
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25 views

How to share Internet (eth0) with Ethernet (eth1) and Wifi at the same time?

Problem I would like to share an Ethernet connection with two other Network Interfaces. So one source, and two shared connections. Background Here is a screencap of my Advanced Network ...
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1answer
40 views

How do I use my desktop as a home desktop server

I have a PC which I want to use as a common server for all my devices. I want to be able to keep it in my basement and use it's gui desktop on my raspberry pi 4(I also want to plug in my 2 monitors on ...
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Ubuntu 18.04.3 lags on slow internet speed

I am not sure if that's the case. It's just an observation: when I am on an internet with high speed everything goes smoothly, while when I use a specific low speed wifi, it gets very laggy. And I ...
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1answer
34 views

No internet connection on last update

My laptop did the latest update and when did the restart the WiFi and wired connection are not functioning any more. I'm use Ubuntu 18.04 LST and the laptop is a Hp with AMD Ryzen 5 CPU
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24 views

The site's identity can't be verified

Each time I try to connect by ftps:// by Nautilus (Ubuntu Files), I receive the message below: The site's identity can't be verified: The certificate does not match the identity of the site. ...
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How to redirect all traffic from clients of openvpn into the socks5?

I've configured openvpn fully as udp port. The openvpn network address is 10.8.0.0. And I've set up the redsocks proxy like followings. base { log_debug = on; log_info = on; log = "stderr"; ...
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44 views

Unable to detect wifi networks in xbuntu (already tried every solution proposed on askubuntu)

The wifi was working. I closed my laptop. I opened my laptop. The wifi wasn't working anymore, specifically no wifi is found. I tried restarting the network manager, rebooting the PC, trying every ...
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1answer
23 views

Is it possible to set proxy for APT while using graphical Ubiquity-based desktop ISO installer?

For some of the Ubuntu installations I use netboot mini.iso from http://cdimage.ubuntu.com/netboot/ . This installation method includes the step of configuring proxy. It is very useful for me as I ...
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0answers
42 views

dnscrypt makes network unavailable

i'm using ubuntu 18.04 and i tried to install dnscrypt using this tutorial but when i tried to connect to a website it always failed, i tried to check the status of the dnscrypt service, and it shows ...
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61 views

Add iptables rule on startup in 19.10

In previous version of Ubuntu I had a firewall rule to block all internet access for my child's account. I just upgraded to 19.10 and the system has changed such that my old method doesn't work ...
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23 views

conntrack -S - Can't open /proc interface

I'm trying to run conntrack -S to get some stats about NAT with docker. But I get the error: conntrack v1.4.4 (conntrack-tools): Can't open /proc interfaces How can I go about getting statistics ...
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20 views

scp'ing from WAN to LAN

I want to scp files from outside of my LAN to a computer inside it. I have sonic internet. While I don't have a static ip address, I'm told that the external ip address that shows up on my phone ...
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39 views

Can't ping DNS ipv6 address from Windows 10 when connected to Ubuntu 18.04 installed as ipv6 router

I have an Ubuntu desktop 18.04 on a PC. I installed it as an ipv6 router. This router has two NICs. One NIC as a WAN interface enp4s0. The WAN's ipv6 address is 2001:b010:203f:ff01::0012 /64, and the ...
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33 views

alx(AR8161) kernel module for 4.15.0-29-generic

Is it any way to install alx kernel module for 4.15.0-29. I use this kernel because of special DAQ card which works only on 4.15.0-29. This way How do I install drivers for the Atheros AR8161 ...
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43 views

Ubuntu 18.04 connected to mobile Wi-Fi hotspot but no internet access

The hotspot is from my own personal phone. My phone has proper mobile data and it very well does connect to the internet. When I connect other devices to the mobile hotspot they work fine, but my ...
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49 views

Samba and WSDD and still no happiness sharing with Windows 10 and Ubuntu 18.04

I followed (I think) the instructions in this post and removed the "User" and "Group" from /etc/systemd/system/wsdd.service file and installed the latest Samba and added a user to it. It was the same ...
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23 views

Permission denied once I start bind service to execute a conf?

At the current moment I'm Migrating from an internal DNS to a forwarder for Samba and to do so I had to include named.conf located in the samba directory. "named.conf" has this set of permission on it....
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1answer
280 views

Network password rejected after installing backport-iwlwifi-dkms

Fresh install of Kubuntu 19.10 on a new Lenovo P53. At first the Wifi network works, and I'm able to connect to my home Wifi using the usual password. The driver manager recommends to install ...
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1answer
126 views

IPv6 source address selection with addrlabel (or similar) with netplan (or similar)

I have using something similar to How to enforce IPv6 source address selection with addrlabel at startup? to configure IPv6 address selection in Ubuntu 16.04. Now I am deploying Ubuntu 18.04 and the ...
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1answer
28 views

Unable to connect to openvpn outside LAN

I am trying to host a openvpn server on my Jetson Nano board (arm64). I followed the tutorial from a digitalocean page, but I cannot connect to my vpn server outside the network. I can however connect ...
0
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1answer
43 views

18.04: VPN fails on a specific WiFi connection in Ubuntu, works OK in Windows

I live in a country which unfortunately filters and blocks many websites, so I use VPN. Recently I encountered a problem with a university WiFi connection when using VPN in my Ubuntu 18.04; although ...
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0answers
19 views

Pulseadio sending audio to Raspberry - doesn't work after wakeup (Ubuntu 18.04)

I'm running Ubuntu 18.04 LTS on my laptop (Thinkpad X1 Carbon gen3), and Raspbian Buster on a raspi 3 B+ with a Hifiberry DAC+ Pro HAT. Both are up to date with updates. pulseaudio-modules-zeroconf ...
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22 views

TCP proxy solution

Are there any solutions for setting up a proxy server supporting persistent TCP connections? For example, a proxy server which would forward all TCP connections to a remote machine with an MQTT ...
0
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1answer
95 views

Ubuntu 19.10: Retries password after re-installing bcmwl-kernel-source

There is an Ubuntu 19.10 with all recent updated up to date. Problem Wifi is unable to connect to a secured point. The password is correct, but the popup window would re-ask for the password again ...
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1answer
305 views

Realtek RTL8221ce Wireless driver / adapter [Answered]

I recently installed Ubuntu 19.04, and it says I have no WiFi adapter connected, and will not allow me to connect to wireless internet. I have seen many places that this may be because Ubuntu hasn't ...
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25 views

Wifi adapter is not found on ubuntu installation

I have installed Ubuntu 18 on an old machine,a Compaq Presario with 2gb of ram. It was using Windows 7 before very slow, so we have decided to work with Linux, i have already another one a Lenovo ...
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1answer
59 views

Can't ping own machine using public IP or registered domain name

I try to ping my newly set up Ubuntu 18 server (running as VPS at some hosting provider) from the command line after I ssh into the machine. Both when using the public IP address (196.189.91.144) or ...
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0answers
28 views

My WiFi working for finite time

I have an Aspire 5 with Ubuntu, I use it normaly but suddenly my WiFi turns off and it says "No Wi-Fi Adapter Found", you can see the driver in the image: Wi-Fi driver As you can see it says Not ...
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1answer
28 views

Unable to SSH 2nd NIC IP

Infrastructure : Microsoft Azure OS : Ubuntu 18.04 Issue : We have assigned 2 NIC card (same subnet). We are able to SSH with primary IP (20.71.0.21) address but unable to connect with secondary ...
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19 views

brave browser synch over LAN not responding

I have asked this on the Brave site but there is no response there. I'm trying out the Brave browser and having trouble with the synch feature that, as I understand it, synchronizes settings and ...
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0answers
76 views

Driver for wifi adapter TL-WN8200ND V2

Hello I'm new in the world of Linux, I need a driver for my wifi adapter, I tried several git repos but no one worked. I am using kernel 5.0.0 and Ubuntu 18.04.1. Please help me. I tried the repo: ...
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0answers
281 views

Ubuntu 18.04 intel wireless ac 9260 “This device is not working” under additional drivers, but wifi is working

I just did a fresh 18.04 install. Now my wifi isn't recognized for some reason, but I'm using wifi right now. I'm not sure what this means here's a screenshot of it. I tried some possible solutions ...
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39 views

How do I install a Realtek RTL8821CE driver on Ubuntu 18.10 without ethernet connection?

I just bought a Lenovo IdeaPad S145 with CPU i5/8GB/256GB, 3 x USB, 1 x HDMI (out), BUT NO RJ45 or Ethernet. RTL8821CE PCI Wifi adapter The command sudo lshw -C network returns network ...
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49 views

How to secure connection to a remote device?

I have a problem. I have a remote device with limited bandwidth and public IP. I want to be the only one able connect to it. The problem is that even if I close all the ports it will use data when ...
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59 views

gpg: keyserver receive failed: Server indicated a failure

I want to add a new repository, But I get error at the beginning: $ gpg --verbose --keyserver keys.gnupg.net --recv 886DDD89 gpg: keyserver receive failed: Server indicated a failure I also tried ...
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36 views

Intel® Dual Band Wireless-AC 3165 appears to be loaded but still no internet connection

Picture of my screen after issuing some relevant commands (Sorry, is there a way to copy past text from a Linux machine to a Windows machine when one of them has to internet connectivity? Mods: If ...
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38 views

Issues with WiFi under WPA2 Ubuntu 18.04

On my work I have a protected WiFi network and a guest one. For some reason, I can't connect to the protected one it just asks for login password and doesn't connect. I googled for a solution but not ...
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44 views

Bluetooth USB adapter on ubuntu 18.04.3 - Detection successful but scanning does not work

My USB bluetooth adapter fails to detect any of my devices on Ubuntu 18.04, with all packages updated. I've gone through stackexchange and, based on my readings, tried the following commands: $ lsusb|...
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85 views

“No Wi-Fi Adapter found” in Ubuntu 18.04 after update

I'm using "Dell Vostro 5490", OS Ubuntu 18.04, Wifi module "Intel(R) Dual Band Wireless AC 9462". For two months everything worked well. Once after update I reboot Dell and Wi-Fi adapter is not ...
2
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0answers
219 views

How do I assign a /64 ipv6 subnet

So for my application I want to be able to use any ipv6 address for communication but right now I can't even let curl use the addresses so I'm stuck. Ubuntu 18.04.3 LTS netplan as network manager ...
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0answers
23 views

UFW routing blocks ping or HTTP responses but i configured it

i recently installed Wireguard. It works so far. But if i want to call a website through it, it doesn't work. I use UFW. Steps i made: configured wireguard interface, port and keys + peer configured ...
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0answers
48 views

How to use CUPS PDF to create a network PDF printer

I'm using https://github.com/hanazuki/docker-ubuntu-cups to run cups PDF on an ubuntu docker. I mapped like this: sudo docker run -it -p 6310:631 -e ADMIN_USERNAME=admin -e CUPS_ADMIN_PASSWORD=admin -...
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0answers
15 views

Problem connecting gateway to internet through cellular connection

I'm by no means an experienced person in this regard. Context, if you find it helpful We are developing an IoT solution for telemetry purposes. The device that retrieve the data to send it to the ...
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2answers
70 views

Share Folder Locally [duplicate]

I expect there is already an answer to this, but I can't find it. Feel free to point me to an existing solution. A while ago I did a lot of fiddling about with a terminal on my Ubuntu Budgie 17.10 ...

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