Questions tagged [networking]
Computer networking is the connection two or more computing devices for transmitting and sharing data. The devices use common communication protocols over a physical or wireless connection. Use this tag for questions about managing and using network connectivity on an Ubuntu system.
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Create wi-fi hotspot using specific network adapter
I have an Ubuntu box. It has both an internal and external (USB) wi-fi adapter. I can connect to wi-fi networks on either.
However, I need to set up a hotspot using this machine. It has to use the ...
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wire and wireless suddenly disappeared
My laptop has Ubuntu 22.04.3 LTS . Wire and wireless suddenly not accessible. Clicking top right on my desktop either wire or wireless icons disappeared. Clicking setting>Network there is ...
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Ubuntu Network Manager Keeps Sending Deauth
It is so annoying I have been searching for a while now about a solution but haven't found one. I have a Dual Band access router. One network is on 2.4Ghz which connects and works fine. But as soon as ...
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Firefox showing proxy server error after downloading Nvidia driver?
I downloaded NVIDIA driver 390 for my 820m GPU but after selecting it over intel my WiFi connection is not working without VPN service on. i deleted my NVIDIA driver but nothing changed should i ...
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29
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ubuntu-22.04.3-live-server-amd64 LTS device gets public ipv6 assigned but not able to access it
Since I have Internet connection from an ISP that does not give public ipv4 and keeps the connection in cg-NAT but too my surprise I found out that it is assigning public ipv6 to all my devices.
After ...
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56
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How to share directory in Ubuntu22.04 for Windows users
I have a Windows domain LAN + some Ubuntu 22.04.
I'd like to share Ubuntu folder to make it accessible to Everyone from Windows domain.
I have made this recommendation:
https://www.debugpoint.com/...
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35
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How to auto login into a samba share?
I have two Ubuntu computers. The first is setup as a NAS, samba installed and all share folders set. Everything works great.
I also have my Ubuntu work computer. When I open up my Folder>Other ...
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How do I disable wifi frame checksums?
Building a mesh network with my own protocol to support a P2P social network over wifi. Needing custom protocol to cut out the connection-oriented overhead from the OSI model, preventing users from ...
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Ubuntu 22.04 iptables command not working
I posted this same question in another SE forum, later felt this forum is more appropriate considering the Linux Distro I am dealing with.
Totally new to netfilter thing, currently am running an ...
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35
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Problem connecting to PostgresSql from Docker container
I have two Ubuntu Servers 20.04 with an external IP of 185.253.74.227
The first server has a local IP 192.168.1.30 on which I have nginx running and I host my Docker containers on it.
The second ...
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DNS resolves intermittently on ubuntu 22.04
Yesterday my Oracle-hosted server (Cloudflare DNS) was suddenly cut off, replaced by the cloudflare "Origin is unreachable" code 523 page
I spent a long time looking for the cause and, ...
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Ubuntu 22.04 does not connect to any Internet address
I have an Ubuntu server 22.04 that has been set up recently. It worked a couple days and I turned the first few knobs until one day, I was not able to connect to the Internet anymore. It started when ...
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No Wi-Fi adapter found after upgrading to 23.10
Unable to find the WiFi icon at the top right corner of screen as well as shows above message when access the WiFi option from the Settings.
Here's the screenshot:
Please fins some info:
0:14.3 ...
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Network forwarding ubuntu 22.04
Today, I intend to perform data transfer. My modem only supports the PPTP protocol. My goal is to have two servers, and after the modem connects to the first server using PPTP, the first server ...
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Cipher negotiation is disabled since neither P2MP client nor server mode is enabled. Options error: you must define TUN/TAP device (- -dev)”
using Ethernet connection
1 confirmed config is fine from the provider
2 tried different distro ubuntu/qubes/fedora/mint it works on windows
3 tried different location about 40 times
just tell me what ...
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Attempting to install realtek-r8152, getting Key was rejected by service error
I'm moving back to Ubuntu today and amongst some other things i wanted to get my Ethernet adapter working so i can install things faster, problem is that after looking at the guides
(example:
https://...
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65
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No connection to local NAS after upgrade from 18.04 to 22.04
Dear AskUbuntu users,
I recently upgraded my Kubuntu 18.04 to 20.04 and then 22.04.
My mounting script for my NAS WD Mycloud stopped working. I investigated and here are my findings:
I can ping the ...
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53
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Wi-Fi randomly disconnects on Ubuntu 18.04 [closed]
Wi-Fi on my ThinkPad-L440 randomly disconnects on Ubuntu 18.04.
I've done a lot of troubleshooting and tried a lot of proposed solutions already, but the problem still persists.
While browsing the ...
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[Kernel version 5.17.0-1035-oem]; 22.04.3 LTS Network unclaimed
I am new to Ubuntu. I installed version 22.04.3 and I am not being able to connect to WIFI.
I saw this posts:
22.04.1 Network Unclaimed
No Internet connection after updating to Ubuntu 22.04.3 LTS
...
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browser internet acces limited on linux mint [closed]
When I open firefox I cannot open any site/ it says that I have no internet but I have my ethernet cabel connected+wifi aswell some streaming applications dont work either like spotify or electron ...
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25
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Wifi is not working in my lenovo ideapad
Ever since i installed linux my wifi is not working. I am using lenovo ideapad E41-25. I have tried many things but didnot work. Wifi works in windows but on ubuntu.Any amount of help will be ...
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+50
Knockd listen to a specific IP address
In Knockd how do I listen to a specific IP address from an interface that has multiple IP addresses?
Knockd only has the option to listen by interface but not an IP address.
Example
Interface eth0 has ...
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Ubuntu Server cannot ping gateway or resolve names
I'm dealing with a very strange networking issue.
I'm running Ubuntu Server 22.04 and every client can get to it and the internet on my home network. However, the server cannot even ping the gateway (...
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can not share a folder between ubuntu 22.04 and windows 11,
I am trying to share a folder between Ubuntu 22.04 and Windows 11.
The folder that I am trying to share is the public folder inside my home directory.
I can see that in Ubuntu the shared logo (the ...
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19
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linux mint 21 et x2go [closed]
I'm new to x2go. I'm using Linux Mint 21, and I've installed the x2go server on several machines for testing. I'm mainly facing three issues:
1 On two machines, I failed to establish the initial ...
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1
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31
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SSH into my own machine on my local network (no access to peripherals and remote access is not turned on)
I'm wondering if I can access my Windows 10 machine from another machine, both on the same network. I know the IP and my user/the pass for it but otherwise do not have access to the computer. I want ...
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31
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know about huawei compatibility
I just want to know if my Huawei usb modem model E8278s-602 is compatible with Lubuntu 22.04.3 and Linux Mint.!!!
I see this errors:
[ 2028.382609] ISO 9660 Extensions: Microsoft Joliet Level 1
[ 2028....
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15
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Drivers for Intel devices are not loaded in 18.04 (IBM ThinkCentre M90q) [closed]
I am struggling to get Ubuntu 18.04 running properly on my new IBM ThinkCentre M90q. Installation works just fine but there is not network available whatsoever (Ethernet, WLAN, WLAN-USB-Stick). I ...
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95
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getting network issue in Ubuntu 22.04 (Kernel: 6.2.0-37-generic) for USB WiFi adaptor (Ralink MT7601U (148f:7601))
I installed Ubuntu 22.04 in my old desktop. Everything is working as expected except the WiFi.
WiFi is showing low network strength and getting disconnected if i'm taking the router more than 5 feet ...
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Unable to install the rtl8188fu wifi adapter driver on my Jetson Nano 4GB
So I have a USB WiFi Dongle and I need the drivers for it (0bda:f179), ie, rtl8188fu.
I am currently trying to use it on my Jetson Nano 4GB and I found this tutorial for it:https://github.com/...
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Persistent Network (Ethernet) Connection Issue on Ubuntu 20.04 and ifupdown
We are currently facing an issue on Ubuntu 20.04. Our eth0 interface is managed by the ifupdown service (you can see a screenshot of the /etc/network/interfaces file below). Initially, the connection ...
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26
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Wifi connection issue in Ubuntu 22.04
I recently installed Ubuntu 22.04 on my Lenovo ThinkPad Laptop . Whenever I attempt to connect to my home Wi-Fi 'Authentication required' prompt appears. Even after providing my Wi-Fi password, it ...
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1
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135
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No Internet connection after updating to Ubuntu 22.04.3 LTS [duplicate]
I just updated my Ubuntu to 22.04.3 LTS and I have lost my Wifi and Ethernet connection. It was working just before the update and my other devices are connecting to the router just fine, so I don't ...
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interface altname
I installed Ubuntu 22.04 on my PC.
Yesterday I replaced /var to LVM.
Afterwards I understood that I have a problem with the wired network.
eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc ...
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Wifi Adaptor Not Found - Acer Laptop ubuntu 22.04.3 Wifi 6Ax101
I am using Acer Laptop AL15-52 which was by default in Windows 11 Home SL OS. I changed the Operating System to Ubuntu 22.04 LTS. After that I couldn't see the Wi-Fi Symbol in the Ubuntu.
I am facing ...
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Slow wifi with Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter (rev 01) on Ubuntu 23.10
I get 0.5 Mb/s on ubuntu 23.10 and around 500 Mb/s using windows.
I have an HP elitebook 845 G9 with Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter (rev 01).
I really have no idea how to ...
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Secondary IP is inaccessible externally on Ubuntu 20.04
I recently purchased a secondary IP address for my Ubuntu KVM server and attempted to add it to the network configuration in /etc/netplan/50-cloud-init.yaml. However, I am facing issues as the added ...
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14
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How to get and install WiFi adapter in HP Evvy 23n010ne PC for UBUNTU
How to get and install Broadcom BCM 943228HMB
802.11abgn 2X2 WiFi adapter in HP Evvy 23n010ne PC for UBUNTU new version.
Live UBUNTU can be easily installed while complete installation fails while ...
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Stable version needed without internet connectivity issues
I recently installed Ubuntu 23.10 and all seemed fine to begin with. However the following day it wouldn’t recognise the wired Ethernet connection and increasingly required authentication to connect ...
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How to receive UDP traffic from multicast adress with Python on Ubuntu 22.04?
I have an ethernet device sending UDP packets to multicast address 224.0.2.2 on port 42102. I'm able to capture packets from wireshark or tcpdump, but when I try to open a socket and bind it to ...
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Samba connection to $HOME downloading lots
I have a CIFS drive mounted in fstab to a dir in my HOME. Its a Windows system on the other side. I noticed today that conky is displaying a constant 2-4 MBps download, and a smaller but constant ...
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Server can't ping itself on Ethernet or Wi-Fi
I have small home server which started acting weird recently. For 2 weeks the server can't ping itself (can't resolve?) over ethernet or Wi-Fi. If i try to connect to that :80 port via domain from ...
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How to simulate a NAT network in Ubuntu host with iptables and iproute2?
I want to simulate NAT network mode of virtual machines without using any vm-specific tools. The detailed goals are the following:
The VMs have internal network IP 10.8.20.0/24
The physical nic eno1 ...
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Ubuntu 22.04: Able to ping the host but no internet access on browser
I am new to ubuntu. I have VM Virtual box installed on Windows system which launches the Ubuntu 22.04.
My system is connected to Ethernet and is able to access the internet (with Windows 10). When i ...
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84
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Unstable wifi connection after Ubuntu 23.10 update
since i updated ubuntu to 23.10 I've notice some problems with wifi connection. Randomly the wifi disconnects without any visual feedback, and then connects on the next second.
I've noticed this by ...
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Ubuntu 22.04 NIC problem
I have a Realtek rtl8822ce NIC in my HP 250 g9 that I use also on Windows sometimes.Every 10/20 minutes the wifi network disconnects and I have to disable and enable again wifi network. I made an .sh ...
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How can I restore my wifi services on Ubuntu 23.10
There are other, similar, questions, but either there was no resolution or the scenario did not replicate mine.
I've been running Ubuntu for a number of years. Indeed, I was happy with 23.04 as it ...
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Network frequently disconnects momentarily
The network connection breaks for a second every few minutes or more frequently. If I'm browsing the internet, the page will show a network error, but after refresh, it will load properly. This is ...
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Ubuntu 23.10 Mediatek 7902 wifi not detected
lspci -k , relevant o/p.
0000:2a:00.0 Network controller: MEDIATEK Corp. Device 7902
Subsystem: AzureWave Device 5524
Results of lsb_release -a :
No LSB modules are available.
Distributor ID: ...
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I'm attempting to execute a Flask test file, but when attempting to access it through the browser, an error stating that the site cannot be reached
I have tried creating an inbound rule in my firewall to allow port <5000> but its still showing site cannot be reached.
i have also tried to Check UFW (Uncomplicated Firewall) with this command
'...
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