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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Netplan DNS configuration is overridden UBUNTU 22.04

I have just installed ubuntu 22.04 from scratch on a new physical server. One thing that has been a thorn in my side with Ubuntu since about 14.04, is trying to wrap my head around the complexities ...
Dennis 's user avatar
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How to add multiple domains to my dns server?

I'm trying to figure out how can I add other domains to my DNS server, as I fallowed this tutorial: https://tecadmin.net/configure-dns-server-on-ubuntu-linuxmint/ Can anyone explain and show me how to ...
Bestmank's user avatar
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Router changing default gateway when creating a DNS

I'm using Ubuntu 20.04, and my router is TP-Link AXE-5400. I'm new to Ubuntu and Linux for that matter, but I managed to make some VM via Proxmox. Cloud server, gaming server, Plex and so on. I was ...
F.Hasangjekaj's user avatar
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2 answers
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How to manually create your own nameservers and manage multiple domains(without the help of control web panels) [closed]

I would like to know how to create your own name servers and manage them on your own ubuntu server(so they will no longer be configured on the domain registrar panel). Like, for example, I would take ...
Bestmank's user avatar
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UDP 53 not working

I have a small issue. I have a virtual server with Ubuntu Server 20.04.6, and I've installed a DNS server on it. However, it doesn't respond on UDP port 53. It only responds if I use the command "...
Nikolexa's user avatar
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Changing dns to OpenDns works only in the current session, not for my child and not after reboot

I configured OpenDns as suggested here (even the final part) It works immediately after the changes, BUT: If I switch to the user of my child, it doesn't work anymore If I switch back to my account ...
Sixro's user avatar
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Strange UFW Block Logs

i noticed repeats of the following logs in my server: Dec 3 21:55:27 alice-server kernel: [287677.084885] [UFW BLOCK] IN=ens18 OUT= MAC=01:00:5e:00:00:01:90:9a:4a:dc:31:62:08:00 SRC=192.168.0.1 DST=...
James's user avatar
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All my subdomains which I haven't setup on server loads my phpmyadmin virtualhost configuration by default

I have done setting up a sub-domain on my ubuntu server for my phpmyadmin, which is working fine. If I created a new sub-domain in my DNS and make it to point on the ubuntu server loads my phpmyadmin ...
Mano Mahe's user avatar
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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, ...
londoner's user avatar
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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 (...
Lee Bowie's user avatar
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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-...
Raphael10's user avatar
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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 ...
martini's user avatar
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Issue with configuration in openvpn - no internet connection

I am having issues with internet connection when I have openvpn activated: I have the following server.conf file port 1194 proto udp dev tun user nobody group nogroup persist-key persist-tun keepalive ...
Breno's user avatar
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Cannot change DNS settings Ubuntu 23.10

I use a Jio network for my home wifi and some routes have been banned on that network so to make it work I need to use 8.8.8.8 as a DNS. Like other distros which I used I changed the DNS from the ...
Vedant Matanhelia's user avatar
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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
1 vote
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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 ...
wadeh's user avatar
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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 ...
Apollo's user avatar
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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 ...
Piotr Bujakowski's user avatar
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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
1 vote
1 answer
104 views

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
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31 views

Loss connection with Ubuntu after my computer changed its IP address

The computer I am using for my research belongs to my workplace, and it has a dynamic IP address. The Ubuntu device that I used only has one static IP address (no dynamic IP) and should be connected ...
medphys_student's user avatar
1 vote
0 answers
197 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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1 answer
217 views

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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1 answer
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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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161 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 (...
Naxxio's user avatar
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0 answers
142 views

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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0 answers
116 views

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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0 answers
23 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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0 answers
28 views

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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0 answers
23 views

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
1 vote
0 answers
116 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
1 vote
0 answers
49 views

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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0 answers
136 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
1 answer
623 views

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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1 answer
39 views

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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39 views

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
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0 answers
113 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]: ...
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