Questions tagged [dns]

Domain Name System for computers, services, or any resource connected to the Internet. It translates domain names meaningful to humans into the numerical identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.

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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 ...
IHateCoding's user avatar
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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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DNS resolve sometimes connection timed out

Good day to all. Made a command: nslookup kafka.zxc.stage @dns1.prod And sometimes I get an answer - ;; connection timed out; no servers could be reached For example, when I run a command every second,...
Tsunani's user avatar
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DNS Issues with Kubernetes Cluster : no servers could be reached

I'm still experiencing dns and network issues And I'm at a dead point, looking for hints and suggestions Summing up : Following the indications found here : https://kubernetes.io/docs/tasks/administer-...
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Bind9's working only locally

I'm trying to make multi sites with apache2, but I need domains to ping it, therefore I'm trying to host dns with Bind9. The problom is that the dns are pinging only locallly! Why? If someone knowns ...
Nathanub's user avatar
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Ubuntu 22.04 USG hardening script breaks DNS resolution

Since a few days, I noticed that running USG hardening tool on a freshly installed Ubuntu 22.04 server, breaks DNS resolution. Running for example dig google.com throws out an error: ;; communications ...
Roberto Jobet's user avatar
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Options for migrating Windows 2012 R2 DC to Ubuntu

I have a small Windows domain, with the PDC running on Windows 2012 R2. I am interested in retiring the Windows server and replacing it with a primary and backup DC's hosted on Linux VM's. The ...
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DNS problem dig: couldn't get address for 'ns1.smk-stb.ru.': failure

Hello, please tell me I can't configure dns for my domain my static IP is 146.19.113.24 domain smk-stb.ru local IP 192.168.0.105 configured via webmin
Denise 's user avatar
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Unable to resolve local network DNS Names from Ubuntu 22.04.3 and Unable to resolve Ubuntu DNS Name from Network

Not sure what happened today, but my Ubuntu server is no longer resolvable on the LAN, and nor can the Ubuntu server resolve any names on the LAN. The Ubuntu Server can resolve external Domain Names ...
Simon Todd's user avatar
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Internet problems

Today suddenly internet stopped working. Time ago I had to re install ubuntu because each time I ran my system I had to run sudo dhclient. This afternoon internet stopped working, I was connected and ...
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I move to next hostel. I try login to network, but in Firefox / Chromium don't show to me that option. I get connection with network device, IP DNS

I move to next hostel. I try login to network, but in Firefox / Chromium don't show to me that option. I get connection with network device, IP and look good. Firefox / Chromium can't open websites ...
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Registering DNS Records

I am trying to add/update DNS records at every X sec to my custom dns server which is located in another device. I have seen implementations that send custom UDP messages (for DNS registery) to do ...
letro's user avatar
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trouble connecting a linux server to a windows client

How can I connect a Linux server to a Windows client. I've both operating systems already installed on VirtualBox — Ubuntu Server 22.04 and Windows 10 Enterprise. For the Linux server, I kept the ...
shostakophile's user avatar
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1 answer
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BIND9 on Ubuntu 20 - Cannot configure Zone to work properly

I installed it on Ubunto 20 and configured two zones Options config file acl internal { localhost; localnets; 192.168.70.0/24; 10.200.157.0/24; }; options { ...
Wism Esmel's user avatar
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What could be stopping my DNS resolution from working?

I've been experiencing strange behaviour on Ubuntu 22.04. I will be watching something on Youtube for example and then the streaming will stop indefinitely and the video will freeze. Then I will try ...
James Read's user avatar
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Can no longer mount a DLINK DNS-323 NAS drive on Ubuntu 20.04

I have a problem where once I was able to simply mount a NAS drive either in using fstab or standalone. I am able to do this on Windows with no issues, but can not on Linux. Furthermore, I have tried ...
rchrdp's user avatar
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Can't Use DNS On Network Manager

I followed a guide by MakeUseOn setting a static IP on Ubuntu Server with Network Manager. After some time, my DNS has stopped working. I have tried using sudo nmcli con mod static ipv4.dns "8.8....
Champe20's user avatar
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Can't connect to certain website when connect to VPN

please edit my text: Here is my current operating system: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.6 LTS Release: 20.04 Codename: focal ...
Muhammad Fhadli's user avatar
2 votes
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593 views

Docker daemon timeout on DNS requests

I am running 350 containers, however they are having dns timeout issues. The below logs are being observed in the docker.service Oct 20 22:18:54 node1 dockerd[22149]: time="2023-10-20T22:18:54....
Trevor K Smith's user avatar
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Connectivity issue with Ubuntu 22.04 LTS - Internet not accessible

I am sorry if it seems a very naive question, but I am not so experienced in Linux. I was installing something, when I accidently removed some important packages in Ubuntu 22.04 LTS. after that, I ...
Davood Dorostkar's user avatar
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DNS with VPN problem

I've been facing issues accessing company websites with the VPN and company DNS configurations set up. Access can be gained by manually adding entries to the /etc/hosts file but im looking for better ...
Daniel's user avatar
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something wont allow me to reach websites

I'm connected to WiFi but can't reach web pages, Firefox returns error: Having trouble finding that site. Can't connect to server at github.com (and all other sites I've tried to open). I tried ...
Phantom Vibrator's user avatar
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295 views

Adapt systemd-resolve command to resolvectl

I upgraded my ubuntu to 22.04 and a script that routes the traffic of my work vpn is not working properly since it uses a systemd-resolve command. How I use the script: I manually execute a script (...
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Can't ping github, even by IP address; can ping other sites

I have already read numerous threads on this but I haven't found an answer that works. I'm trying to install something on my VPS and my attempt to clone from Github fails with error, "fatal: ...
stillnotfamous's user avatar
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Ubuntu 23.04 fresh install DNS not working on LAN but works perfectly on WLAN

As in the title, I am experimenting a strange behaviour on ubuntu (both 23.04 and 22 lts). DNS doesn't resolve domain addresses if connected by wired LAN,but it does it on wifi (on the same network). ...
Alessandro Salsa's user avatar
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84 views

Static fixed name resolution for specific domain name

Is it possible to setup a static domain name resolution in Ubuntu 20.04? AFAIU when domain name is to be resolved, the clients send DNS request to some local service (systemd-resolved?). I want it to ...
user3174454's user avatar
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Ubuntu hosting VPN for personal VPN network

This is probably a simple solution and I am missing something but I have a home network that does not have a static IP and I have a domain controller and a samba share on that DC, I want to be able to ...
Ryan Vogel's user avatar
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Public DNS, like provider

I have VPS with public IP 1.2.3.4 Ubuntu + Wordpress, which opens from http://1.2.3.4. Hosting provider who needs money for DNS A record. Domain name mysite.com. I know how to work with hosting and ...
Alex V's user avatar
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Ubuntu on wsl always "fails to fetch" whenever I'm trying to download to it. How can i fix this?

I'm just starting out on Linux (working on WSL since it's probably the simplest option for me), as I'm trying to run the Community Multiscale Air Quality modeling system. This requires a compiler, but ...
Hector Viruega's user avatar
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290 views

Cannot ping Ubuntu from another device on the same network

I have downloaded Ubuntu 20.04 on my Windows laptop. The problem is that I cannot ping the Ubuntu app from another device on the same network, except the host machine. What I've done so far: Disabled ...
Praveesh Ramroop's user avatar
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DNS resolution fails post Ubuntu upgrade from 16.04 to 18.0.4 using do-release-upgrade [closed]

I tried to upgrade from Ubuntu 16.04 to 18.04 using the do-release-upgrade command and post upgrade DNS resolution is failing. My actual intention is to go to 20.04, but since I am on 16.04, I have to ...
Scarlet's user avatar
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Postfix unable to send and receive emails

I have a new ubuntu server, version 23.04, where I have Webmin installed and through which I installed Postfix and Dovecot. I have a local user (eml_user1) that I want to have the email address ...
Marius's user avatar
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439 views

DHCP and DNS client in Linux

I am trying to make the linux/ubuntu handle dhcp and dns for me. What I do want is getting ip address from the dhcp server, and register it to the dns server. It will update the dns server when ...
letro's user avatar
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2 votes
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Can't get Ubuntu 22.04 server to resolve names

I installed Ubuntu 22.04 and I setup the interface my server has with an IP and DNS servers that it is supposed to use: root@m15jumplnxnoc01v:/# cat /etc/netplan/00-installer-config.yaml network: ...
Cristofer Rojas Vargas's user avatar
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Avahi-Daemon can't discover RaspberryPi

Ubuntu 22.04 is unable to find raspberrypi.local on my network. However, my iPhone can find it. PI is running over ethernet. I've restarted the avahi-daemon.service on the pi, and also avahi-daemon on ...
James Woodall's user avatar
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Ubuntu website crashing - domain can't resolve to IP address when Apache is running

I have a website on Ubuntu VPS server. Set DNS and all thing was working for a month or so just fine now it suddenly crash. I checked for Apache service it says it's active and running on Ubuntu just ...
Benissimo Life's user avatar
1 vote
1 answer
273 views

Bind9 on 22.04 server - many no valid signature found in syslog

I know just enough about this to be dangerous. I have bind9 running on 22.04 Server. I have noticed many entries in the syslog from named such as this.... Aug 23 16:40:39 homesvr01 named[29547]: ...
BradB's user avatar
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DNS issues on Ubuntu 22.04.3 headless server

Background Trying to configure a headless plex server on a little Optiplex machine I bought. Everything has gone smoothly until I try to claim my plex server and it turns out there are DNS issues on ...
ad01's user avatar
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ping ubuntu WSL Ping in the domain (Ubuntu and Windows10)

On the PC PC-XXXX I have Windows 10 and in them through WSL2 I have installed Ubuntu 20.04. In this Ubuntu I enter command which returns IP address server@pc-xxxx:~$ hostname -I 173.30.161.185 -- this ...
user2925716's user avatar
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60 views

Can only browse the internet with Chromium on 20.04 - DNS issue?

I can browse the internet with Chromium on Ubuntu 20.04. I cannot use Firefox and I cannot do apt-get update: $ sudo apt-get update Could not resolve 'actiontoad.canonical.com' # etc... I assume my ...
sdgfsdh's user avatar
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1 vote
1 answer
300 views

DNS_Probe_Possible

I'm having an issue where I'm unable to connect to the internet Whenever I open any browser, I get the error "DNS_Probe_Possible" Here's my basic system info: Distro - Ubuntu 22.04.2 LTS ...
AdorableWeasel's user avatar
1 vote
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142 views

Configuration email server from multiple domain names

I have one VPS server and 4 domains under that, having 1 IP address as of now, also I have 4 CloudFlare accounts for 4 domains hosted for easier DNS management My question is: Q1. Is it possible to ...
Ramesh Pawar's user avatar
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I have to run sudo dhclient -v after every startup after update

After I updated ubuntu I have been running into several problems, from losing all my gnome packages to now having DNS issues after each reboot. I need to run sudo dhclient -v for my internet to work ...
Apollo's user avatar
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2 votes
1 answer
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Ipv6 vs Ipv4: is there a way to force ipv6 use?

Ubuntu/Linux beginner here, so I was wondering if there's any way to force Ubuntu to prefer IPv4 or IPv6 when resolving a name (ex.: google.com has ipv4 and ipv6 addresses. is there any setting which ...
Luis Abreu's user avatar
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1 answer
570 views

How to configure Apache2 on Ubuntu Server to use a domain name

I'm very much new to hosting my own server. I'm following this tutorial: https://www.answertopia.com/ubuntu/setting-up-an-ubuntu-web-server/ and I've gotten to the section titled "1.7 ...
lief b's user avatar
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Ubuntu 20.04 unable to ping domains but can ping IP addresses

Some how I've messed up the DNS after a failed app install! I notice that in /etc/ there are 3 resolv files: resolv.conf resolv.conf_bak resolv.conf-tmp resolv.conf contains: #Generated by ...
Nick's user avatar
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Network stops listening after some time Ubuntu 20.04 LTS

I am currently running on ubuntu 20.04 LTS All packages are up to date. Using Ping 8.8.8.8 does not work. Randomly stops after {some number}th ping and "Packet loss" occurs. However when I ...
argus10q's user avatar
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170 views

Ubuntu 22.04 LTS Bridged networking host DNS not working after reboot

I seem to have a bit of an odd situation here. I just setup bridged networking on my Ubuntu desktop using nmcli, and everything was great until I rebooted. I set it up so that the bridged network ...
Offspring's user avatar
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301 views

Got no internet connection on my Ubuntu 23.04. Need help

My Ubuntu had internet connection previously , but once I have set up my DNS and DHCP servers, my Ubuntu has no more internet connection. May I know what is the main cause of not having internet ...
babayaga's user avatar
2 votes
0 answers
131 views

cifs mount gone after reboot laptop

I've got a cifs share to a laptop mounted in /etc/fstab. This is ubuntu 20.4. //lt2345/share /mnt/test/lt12345 cifs _netdev,noserverino,nocase,rw,cred=/etc/cifspasswd,vers=3.11 0 0 it works fine ...
Serve Laurijssen's user avatar

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