Questions tagged [networking]
Managing and using network connectivity on a Ubuntu system
20,033
questions
0
votes
1answer
29 views
Ubuntu constantly switching between 2.4 and 5Ghz access points
I have an issue where my wifi is constantly dropping out every few seconds. I investigated and it seems like it is repeatedly switching between my 2.4 and 5Ghz access points. Here's the log from dmesg:...
0
votes
0answers
28 views
Symbolic link from Nas to home folder
I'm trying to create a link from my unraid Nas to my Ubuntu vm that I have running in it but ever time I make it the link says its broken and wants me to remove it
0
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0answers
37 views
How to connect your phone as a USB modem to kubuntu
I just downloaded kubuntu 20.04 and immediately installed the drivers with the apt install nvidia-driver-460 command. After that, I can't connect the phone as a modem, although everything worked fine ...
0
votes
1answer
40 views
Wifi can not find any networks after kernel update
After the last update on Ubuntu 18.04 (4.15.0-142-generic) my wifi fails to find any networks.
wifi not finding images
When I run sudo lshw -C network I get the following:
*-generic DISABLED
...
0
votes
0answers
19 views
a problem with my internet connection
Hello I am new to Ubuntu, I installed it following all the steps except in step 5 of the guide (https://ubuntu.com/tutorials/install-ubuntu-desktop#5-prepare-to-install-ubuntu) where I did not allow ...
0
votes
1answer
18 views
I want to use internet on my android device while connected to my laptop's hotspot
I am building an app that will send data to a Python server hosted on my laptop. However, it will also need an internet connection to send some stuff to Google Cloud. When my android device connects ...
1
vote
1answer
27 views
hosting website my own PC “Ubuntu Server” DMZ
i got curious about turning my local ubuntu server for my personal website
i set DMZ to see my ubuntu server
and in domain registrar i set my IP and NS i set with bind9...
however i can only see my ...
2
votes
2answers
45 views
Is it possible to have a wireless network and a wired network simultaneously, and to have different applications use one or the other?
Is it possible to have a wireless network and a wired network simultaneously, and to have different applications use one or the other?
For instance, to have Chrome use the wireless network, while ...
0
votes
0answers
52 views
20.04.2. Running basic commands like copy and executing shell scripts using runcmd of cloud-init file
#cloud-config
autoinstall:
apt:
geoip: true
preserve_sources_list: false
primary:
- arches: [amd64, i386]
uri: http://us.archive.ubuntu.com/ubuntu
- arches: [default]
...
1
vote
0answers
46 views
Ethernet problem on Ubuntu 20.04 in dual-boot with Windows
I'll try and make this short,
Not that long ago I had Kali Linux but I didn't use it cause I couldn't get Ethernet on it so I uninstalled it and downloaded Ubuntu 20.04 today, I booted into it, ...
0
votes
1answer
31 views
ethernet not working but is connected
The short story:
I just installed Ubuntu 20.4.2 on a tower that was previously running on Ubuntu 18.x. The network was working fine before the install, but I can't see any network now. I can see the ...
0
votes
0answers
47 views
How do I stop eth0 being renamed ens3
I am working with Digital Ocean and their help team is unable after over a dozen emails to help me register the network on a VPS spun up from their backup image. Their instructions to try to change ...
0
votes
1answer
48 views
Duplex printing settings ignored when printing on Kyosera network printers via ipptool / cups
I have added several Kyosera network printers on Ubuntu 20.04 LTS via CUPS web admin console.
They are all set up and working but double-sided printing settings are ignored and documents printed one-...
1
vote
0answers
32 views
Ufw blocks incoming and outgoing connections
To update firewall rules, reloading ufw ufw reload blocking incoming and outgoing connections for around 2 seconds, untill it completes reload process.
I have set already the default policy deny for ...
0
votes
1answer
30 views
IPTABLES/UFW: Deny ssh (on alternate port) requests from WAN, and allow ssh (on alternate port) from LAN. HOW TO?
I am running Ubuntu server version 20.04. I have configured my ssh server to listen on an alternate port (port 40001) in my sshd_config file. I want to allow incoming traffic from anywhere on my local ...
0
votes
1answer
37 views
How to check if my device supports Wake on Wlan
There seems to be very little documentation about this. I didn't find much more than this page from canonical
How can I check if my Wi-Fi device supports such a feature? And does also the motherboard ...
0
votes
0answers
22 views
Kyocera network printer suddenly not reachable on ubuntu
After a reset of our local network, the Kyocera FS-C5250DN printer does not work any more. I tried to remove and add it again: When trying to add, the system settings dialogue finds it in the network ...
0
votes
0answers
24 views
Ubuntu 16.04 Ethernet connected but no internet access
I have an ubuntu device that is connected to ethernet "eth0" but no internet access.
below is the output for nmcli device show eth0
GENERAL.DEVICE: eth0
GENERAL.TYPE: ...
0
votes
0answers
16 views
How to auto switch to preferred wireless network
I have two wireless networks (fiber router & phone). I want to
Set the Router wireless as primary
When the primary network is off(Power failure) autoswitch to secondary.
When the primary network ...
0
votes
0answers
133 views
ConnectionRefusedError: [Errno 111] Connection refused
Executive Summary.
I get "connection refused 111" when trying to communicate over sockets in Python. When the connection is refused, THE LISTENER STOPS LISTENING. Same problem occurs using ...
0
votes
1answer
32 views
Fixed address on DHCP server isn't working
I'm running Ubuntu 20.04 as a DHCP server and I tried to assign a fixed address to a client which is another Ubuntu os on a Virtual box, and both of them are in the same internal network, but, it ...
0
votes
0answers
17 views
Can't connect any outside host (using ipv4 and tcp)
Using Ubuntu Server 20.04.2 (LTS) as a template in VMWare Cloud Director. Basically I can reach I can reach any host in my subnet 10.16.0/24, when it comes to connecting thru the gateway at 10.16.0.1 ...
0
votes
0answers
30 views
iptables - firewall configuration - Ubuntu Script 18.04
I need help with configurating iptables. I've made some progress which i think might work like, but i'm not sure. Looks like this:
#!/bin/bash
#changes
NET="10.10.10.0"
ADMIN="10.10....
0
votes
0answers
27 views
wireguard no handshake and no ping. Firewall is inactive
wg show command on server:
> interface: wg5000
> public key: **************************
> private key: (hidden)
> listening port: 51824
> peer: ************************...
0
votes
1answer
17 views
guess ethernet interface is bounding, where would I find a log that proves or disproves
I have a program that is sensitive to ethernet interface changes or bouncing on and off. The program in question is
a monster (microk8s), so it could be failing for other reasons.
Also, on occasion, ...
0
votes
0answers
70 views
ASUS USB-AC53 Nano on Ubuntu 20.04, is recognized, but cannot connect, keeps asking for password
I have bought ASUS USB-AC53 Nano wifi adapter, and am trying to make it work on Ubuntu.
So far I have tried all possible steps I found on the google.
I have used drivers from these repos:
https://...
0
votes
0answers
39 views
Issues with Netplan - Static IP
With the release of Ubuntu Server 20.04 I've had some weird issues concerning Netplan. I'm a student so I use Ubuntu Server as a virtual machine and I have to move a lot (which means, changing IPs all ...
0
votes
0answers
7 views
OpenvSwitch trunk to real switch
I tried to configure a trunk interface on OVS with a real switch but it doesn't work and I don't know why..
OVS configuration :
ovs-vsctl add-port br0 eno2 vlan_mode=trunk tag=4002
ovs-vsctl add-port ...
0
votes
0answers
5 views
Access point incl subnet
I’m running Ubuntu 20:04 on nuc.
I know how to make a access point via settings and it works but can I run a “guest” subnet on the same WiFi card at the same time ?
I will have one subnet 192.168.1.x ...
0
votes
0answers
20 views
Internet is getting disconnected frequently for Ubuntu VM
After Reading so many articles and posts , I am still not able to solve the problem of internet dis-connectivity inside my Ubuntu VM . I am using following tools :
1: Windows 10 host machine
2: Oracle ...
0
votes
0answers
24 views
How to disable connection reset on DHCP Timeout?
Have a shiny new Latitude running Ubuntu 18.04 with all the updates. I'm trying to replicate a network manager config that I have working on CentOS 7 and Debian where I have one Untagged and several ...
1
vote
1answer
31 views
Network Size is 100Mbit/s, but my capacity is 1Gbit/s. I have I219-V Ethernet connection
My Network size is 100Mbit/s, and i wanna change it to 1Gbit/s, because my capacity is 1Gbit/s.
*-network
description: Ethernet interface
product: Ethernet Connection ...
1
vote
1answer
40 views
can not access USB shared drive from Ubuntu to Ubuntu 20.04
I need help with the following problem:
I can not access a shared external USB drive from one Ubuntu machine to another Ubuntu machine.
Machine 1 = Raspberry Pi 4 with Ubuntu 20.04 (new installation)
...
-1
votes
0answers
23 views
SSL certificate only works on a port
I use an SSL certificate from Letsencrypt and this worked for me forever.
Today an error has occurred that the SSL certificate is not secure.
I use webmin as Control Panel and when I access webmin ...
0
votes
1answer
46 views
Why do i get awful network speeds on Ubuntu 20.04 when they were fine on Windows 10? Is it a driver issue?
I recently switched to Ubuntu 20.04 from Windows 10 on my Lenovo B50-45 with a Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 30). My Network speeds have always been normal on Windows ...
0
votes
0answers
12 views
Logging the total bandwidth of a process
I've got a fairly small monthly bandwidth cap on my VPS, so I want to monitor exactly where that usage is coming from.
After searching around, every tool or guide I find seems to only be realtime ...
1
vote
1answer
29 views
Bitmeter started on server, can't connect remotely
I installed Bitmeter on Ubuntu server and followed the instructions in the FAQ. I Issued bmdb webremoteadmin and sudo bmdb webstart and both command seems successful but It will give an empty response:...
2
votes
0answers
44 views
UFW status is getting problem running iptables
I want to use UFW (version 0.36) but I get this error when running ufw status:
ERROR: problem running iptables: Another app is currently holding the xtables lock. Perhaps you want to use the -w option?...
0
votes
0answers
33 views
USB Ethernet adapter randomly disconnecting and reconnecting
USB Ethernet adapter randomly disconnecting and reconnecting
I have a USB adapter that works well on a windows machine, but I tried everything to make it work well on Linux.
It disconnects, but the ...
0
votes
1answer
66 views
Two WiFi Cards/Adapters
I have two WiFi cards connected to my computer but I want to be able to switch between them. When I run lspci | grep Network I see the following:
lspci | grep Network
01:00.0 Network controller: Intel ...
0
votes
0answers
20 views
How to start wifi in Recovery - 20.04
Computer boots, goes to grub but ends up stalled on the "/dev/sda1: Clean" page and won't advance. If I choose recovery mode, there are some commands I could use IF I have wifi. But if I ...
-5
votes
0answers
42 views
Problem installing mavlink-router for nano pi neo with Ubuntu 16.04.2 LTS
I am a total newb at Mavlink. I follow the installation procedure on the following page
https://github.com/mavlink-router/mavlink-router.
Using the command $ git submodule update --init --recursive,
I ...
0
votes
1answer
28 views
How to assign the same static IP to a wired and wireless NIC?
I have a machine (18.04, will be 20.04 at some point) that has a wired NIC as well as a USB card with a wireless one. It is usually connected by cable, but sometimes the cable is disconnected (...
0
votes
0answers
22 views
Airties 2610 Wifi USB Adapter Not Working
I am new to Linux and Ubuntu. I have the ver 20.1 Ubuntu installed. Got almost everything working except the Wifi connection. I have Airties 2610 USB as adapter. There is no linux driver on the ...
0
votes
0answers
32 views
What is the relation between web server like “apache2” and this user www-data? [duplicate]
What is the relation with this user www-data and web server like apache2?
2
votes
0answers
30 views
Run an SSH command at shutdown using systemd
I need to run an ssh command at shutdown/reboot in my Ubuntu 18.04 PC
I struggled reading infinite posts pretending to solve this issue but no way.
I wrote this service in /etc/systemd/system/mydown....
1
vote
0answers
24 views
Wi-Fi router gateway IP adding as nameserver IP in resolv.conf only works for Pulse secure VPN connectivity
I am using Ubuntu 18.04.5 LTS and trying to connect Pulse secure VPN with default nameserver entries in below resolv.conf file, but unable to connect, it gets connected for second or 2 seconds and ...
0
votes
0answers
17 views
Can't reach gateway ubuntu 16.04.5
I got virtual machine with Ubuntu 16.04 there was performed command chmod -R 777 /. My task is to recover system and reach the internet. My steps where this:
I entered recovery mode and did this Fix ...
1
vote
0answers
24 views
Continuous “Temporary failure resolving repositories”
Since I moved country (i.e. to say different location, new network, etc. but same machine) I have problems updating the package list. It does not matter if I run sudo apt-get update or sudo apt update ...
1
vote
0answers
16 views
routing between vmware nat and physical interface
I have my ubuntu box with ip is 192.168.0.31 and macbook laptop whose ip is 192.168.0.111
I installed vmware workstation on ubuntu which created additional virtual interfaces.
All VMs in my vmware ...
