Questions tagged [systemd-resolved]
Use this tag for questions that relate directly to systemd's version of resolved. Do not use this tag for dnsmasq or regular resolved.
171
questions
0
votes
0
answers
80
views
Network won't work after 24.04.1 LTS upgrade
I upgraded my 22.04 LTS desktop to 24.04.1 LTS on a Dell Inspiron 15 3520, and it failed at the end. I booted from a USB drive and was able to finish the installation, but I'm getting Network ...
2
votes
1
answer
175
views
dnsmasq failed to start following update to ubuntu server 24.04.1 from 22.04
I upgraded my ubuntu server from 22.04 to 24.04.1. Upon a reboot i saw that dnsmasq failed to start. I found that this was because it was sharing port 53 with systemd-resolved. So i went into the ...
- 41
1
vote
3
answers
1k
views
24.04 - How to find "what" is changing DNS settings in /etc/resolv.conf
Question: How can I remove whatever is setting this DNS server, incorrectly? The methods
I see for manually changing a DNS server in Ubuntu 24.04 don't seem to in place here as I don't seem to have ...
- 11
1
vote
0
answers
103
views
Resolver Search Path in Ubuntu 24.04
I just want to add to the resolver search path. Editing resolv.conf symlinks to a dynamically generated file, so changing it doesn't live past reboots.
Whats the current way to add permanently to the ...
- 451
10
votes
3
answers
5k
views
DNS Stopped resolving on upgrade to Ubuntu 23.10 and Ubuntu 24.04
I just upgraded my Ubuntu 22.04 boxes to 23.10 and then to 24.04.
They stopped resolving DNS queries.
They are using systemd-resolved and resolvconf.
- 3,260
1
vote
1
answer
185
views
How to force Ubuntu to look at netplan for DNS and not look at resolv.conf
What is the best (proper?) way to force Ubuntu 22.04 to look at ONLY netplan for DNS configuration? I'm working with Rancher+RKE2 and their preparation script includes truncating the resolv.conf file. ...
- 11
3
votes
2
answers
780
views
Can't resolve any DNS addresses, resolveconf is not installed (and can't be installed)
I just updated to 24.04. Ever since, my machine hasn't been able to resolve any DNS names, making it impossible to update or install any packages.
I've followed numerous forum posts saying to edit ...
- 31
0
votes
0
answers
37
views
i have installed ubuntu on my laptop yet i cant connect to the internet i have figured out it is a DNS configuration error how do i solve it
I have installed Ubuntu on my laptop bare Metal the latest version of 2024
if I try and access the internet from any browser I can't because of name resolution
if I ping an IP directly I get a ...
- 1
0
votes
0
answers
874
views
Locale DNS not resolving - timed out
After several hours of searching, unfortunately, I haven't been able to solve the following problem and hope someone can help me.
On the Server is Ubuntu 22.04 with docker, which provide multiple ...
- 1
0
votes
1
answer
3k
views
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 ...
- 174
0
votes
0
answers
228
views
systemd.resolved wont start - stale file handle
I was getting issues with resolving any dns ive checked network settings without problem. Then ive realize that systemd-resolved wasnt started. Can you help me with the issue?
What ive tried
checked ...
0
votes
1
answer
1k
views
systemd-resolved service not starting on boot with error 13 (Permission denied)
I am encountering a strange issue with the systemd-resolved service not starting on boot. To my knowledge I do not know how or why this has happened. The only major changes to the server are running ...
- 1
0
votes
0
answers
775
views
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 ...
2
votes
0
answers
734
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....
0
votes
1
answer
469
views
Resolv.conf is out of control
I have tried God knows how many ways to resolve this and get it under control, but, it doesnt seem to take. I only want the single nameserver in there as 10.0.0.8. Can someone please help.
I have ...
2
votes
0
answers
112
views
Send notification when the network route changes
I have 2 network interfaces:
ethernet enp2s0 with default metric 1
mobile enx0 with default metric 2
When Ethernet goes down, the metric changes and vice versa. I am getting in systems notifications ...
- 320
1
vote
0
answers
394
views
Need to manually start systemd-resolved for internet to work
For some reason I suddenly can no longer access internet after (re)booting, I can ping 8.8.8.8 but not google.com, hence there is a problem with name resolution. If I run
sudo systemctl enable systemd-...
- 11
2
votes
0
answers
10k
views
DNS stopped working (22.04)
UPDATE #2: The next day after booting, I enabled and started systemd-resolved, which apparently reset it to its default configuration. Output of resolvectl status looks normal, and DNS now works with ...
2
votes
0
answers
1k
views
systemd-resolve and dnsmasq on a server
i have the following issue on a server where i have dnsmasq installed:
$ systemd-resolve --status
Failed to get global data: Unit dbus-org.freedesktop.resolve1.service not found.
and that leads to ...
- 1,595
0
votes
0
answers
118
views
Populating resolved with DNS servers
I was recently setting up a custom DNS server for my ZeroTier network. I'm using networkmanager and resolved. I added it and it got added to resolved's global list of DNS servers. However, I noticed ...
1
vote
1
answer
72
views
What does the format from man pages "address#server_name" mean in "DNS=" settings in /etc/systemd/resolved.conf?
In the ubuntu manpages for /etc/systemd/resolved.conf under the "DNSOverTLS=" section, the man pages state
Entries in "DNS=" should be in format "address#server_name".
...
- 133
0
votes
2
answers
915
views
Generate iptables rules while connecting to VPN Server
I'm building a virtual Ubuntu Server(LXC on Proxmox) that shall act as router and tunnel some devices(e.g. AppleTV) of my local network through a VPN (expressVPN).
Connecting and routing to different ...
- 1
0
votes
0
answers
335
views
Netplan nameservers settings not used without resolv.conf entry
I read here that you're usually not supposed to edit resolv.conf, since it is managed by other services. The server is running Ubuntu 22.04.1 LTS.
However, the DNS on my server is not working unless I ...
- 101
1
vote
3
answers
10k
views
.local domain resolving problem in 20.04
I have DNS server with domains in .local zone. After changing priorities in /etc/nsswitch.conf and adding subconfig with my domains to /etc/systemd/resolved.conf.d/ i have servfail error (local cache ...
- 11
1
vote
1
answer
2k
views
Systemd-resolved setting unexpected DNS list
When I connect to my phone hotspot I would expect systemd-resolved to use dhcp provided dns list. For some reason it seems to not be the case for me.
I am using Ubuntu 22.04.1 LTS
/etc/systemd/...
- 59
0
votes
1
answer
211
views
systemd-resolved DNS is not cleared when switching network
I have an Ubuntu 20.04 with systemd 245 and network-manager 1.22.10. When I connect to a Wi-Fi that advertise IPv4 and IPv6 DNS, it works correctly and systemd-resolved --status shows the IPv4 DNS ...
- 111
0
votes
1
answer
537
views
`resolvconf` changing current DNS. Netplan stict using nameserver
I need to have my own DNS server in the corporate.
I have the following config set for netplan:
network:
version: 2
renderer: NetworkManager
ethernets:
eno1:
dhcp4: yes
...
- 121
6
votes
2
answers
16k
views
Stop resolvectl Changing DNS
I have a home network. DHCP lease works for every other system / appliance but Ubuntu 22 in that I lease out local DNS server with its local subnet / zones as primary DNS server 172.16.100.22. And ...
- 85
0
votes
1
answer
3k
views
Default search domain for /etc/resolv.conf
With systemd-resolved, where does DOMAINS in search come from?
/etc/systemd/resolved.conf
[Resolve]
DNS=1.1.1.1
Domains=lan
/etc/resolv.conf
nameserver 127.0.0.53
search lan DOMAINS <----
lan is ...
- 101
0
votes
0
answers
3k
views
Ubuntu 22.04: Unable to stop systemd-resolved: it is relauched
on ubuntu 22.04, i tried to stop and disable systemd-resolved:
sudo systemctl stop systemd-resolved
sudo systemctl disable systemd-resolved
sudo systemctl status systemd-resolved
○ systemd-...
- 19
0
votes
0
answers
442
views
systemd-resolved does not resolve dns names
So long as I had a single interface up getting its IP from a DHCP server things were working fine. I then connected a second interface and statically configured an IP address on it. Now dns resolution ...
- 11
73
votes
3
answers
125k
views
systemd-resolve command not found in Ubuntu 22.04 desktop
I am going through some tutorials. When I try to execute systemd-resolve --status in Ubuntu 22.04 desktop, the system reports command is not found. What am I doing wrong here?
I tried running sudo apt-...
- 831
1
vote
2
answers
2k
views
/etc/resolve.conf corrupted!
I've edited /etc/resolve.conf on my ubuntu 20.04 by mistake and it corrupted as below :
root@ubnt20srv-test-01:/etc# cat resolv.conf
cat: resolv.conf: No such file or directory
but the file exist:
...
- 11
7
votes
1
answer
5k
views
failure to resolve DNS query using IPv6, e.g. host -6 gnu.org, dig -6 gnu.org
Why doesn't the default Ubuntu LTS install allow host -6 gnu.org or dig -6 gnu.org to work?
Welcome to Ubuntu 22.04 LTS (GNU/Linux 5.15.0-27-generic x86_64)
$ host -6 gnu.org
;; communications error ...
- 247
0
votes
0
answers
3k
views
Can not resolve DNS on Ubuntu 20.04 on specific network
I am having trouble resolving DNS only at my parents place which I really do not understand. It is the only place where I have that problem.
My feeling is that systemd-resolved is not configured ...
6
votes
1
answer
4k
views
How can I identify detailed DNS behavior with systemd?
I am trying to diagnose issues with a DNS server, in an environment with multiple DNS servers set by DHCP.
In Ubuntu Server 20.04.2 (with no changes to DNS behavior) I need to find which DNS server(s) ...
- 83
1
vote
1
answer
547
views
Wrong nameservers show with `systemd-resolve --status`
I have some rogue nameservers that I can't seem to get rid of on my ubuntu 20.04 server. I run 2 pihole instances, which have been configured to work with ipv4 and ipv6 Cloudflare DOH. When running ...
- 81
3
votes
1
answer
8k
views
Port conflict in Pi-Hole Docker installation with systemd-resolve process
I am trying to install Pi-Hole alongside Nextcloud on my Raspberry Pi with Ubuntu 20.04. NextCloud is installed normally on the top of Ubuntu, whereas I am trying to install Pi-Hole in a container to ...
- 31
0
votes
1
answer
1k
views
Ubuntu DNS resolver not use DNS Over TLS port 853 for DNS resolve
I have Ubuntu 20.04 server. This server is set up to run WordPress sites (LEMP stack). In this server, I have set up an ubuntu DNS resolver to use "DNS Over TLS". Use Cloudflare DNS service.
...
- 25
0
votes
0
answers
963
views
How to split DNS resolution based on the target domain?
Note: I read two other questions (here and here) that address the same problem but none of the solutions is applicable to my case.
I run Pi-hole in a docker container as my DNS server - for the server ...
- 1,315
1
vote
1
answer
5k
views
DNS servers "ignored" with NetworkManager, systemd-resolved and VPN tunnel
With Ubuntu 20.04, I connect to the internet via WLan using NetworkManager. Then I establish a VPN with OpenConnect.
I am using the "stub resolv.conf": /etc/resolv.conf -> /run/systemd/...
- 303
0
votes
0
answers
5k
views
Ubuntu Server 20.04.3 LTS 00-installer-config.yaml or resolv.conf for DNS settings
So I'm freaking confused. I'm trying to specify local DNS servers for our domain. This Ubuntu Server 20.04.3 doesn't use the old interfaces file. I configured the yaml file for netplan,
# This ...
- 1
1
vote
1
answer
1k
views
systemd-resolve not apply settings based on network interface
I want to config systemd-resolve for working with different dns servers based on network interface. But when I create config un the /etc/systemd/network/tun.network nothing is happen.
My tun.network ...
- 121
1
vote
0
answers
4k
views
Changing DNS nameservers with systemd-resolve doesn't persist
let me start by saying that I'm not sure whether I'm running Ubuntu server or Ubuntu desktop, that being said, my 'server' is running on a VPS.
Here is the output of lsb_release -a:
No LSB modules are ...
- 11
0
votes
0
answers
2k
views
Problem with /etc/resolv.conf
I cannot add comments to question 1128536(How to make persistent changes to /etc/resolv.conf Ubuntu 18.10)
Using Ubuntu 20.04.3 on laptop ; latest update Oct 19th, after the one but last update oct ...
15
votes
3
answers
28k
views
systemd-resolved not resolving any domains
My NetworkManager connects to the internet but I do not have any internet access due to a bad DNS configuration. I do not have much experience with DNS settings, but it appears the issue is with ...
- 153
0
votes
0
answers
202
views
No Graphics Output from RTX 3080; X Server Not Configured
Beginner user here.
I've got a server box loaded with an Intel S2600ST, an Intel Xeon Silver 4216, and an RTX 3080, and either Ubuntu 20.04.03 or 21.04.
When I've had the LTS loaded, it would ...
- 1
4
votes
1
answer
3k
views
Ubuntu 18.04 DNS Not Working
I'm having a problem with DNS on Ubuntu 18.04. I think there is a misconfiguration somewhere between netwrok-manager, systemd-resolved and resolvconf.
I can ping IP addresses ok, but not host names:
$ ...
- 153
0
votes
1
answer
448
views
Why do two Ubuntu systems in the same network behave differently in DNS resolution?
EDIT (tl;dr)
I seem to have identified part of the problem here, as at least the differences in /etc/resolv.conf and related files are gone.
But I still cannot connect via WiFi, so other difference ...
0
votes
1
answer
2k
views
Ubuntu 20.04 resolved waits for refused IPV6 result with dnsmasq
TL;DR
My DNS queries are slow because systemd-resolved queries the DNS server on IPv4 successfully but repeatedly queries on IPv6 after the DNS server responds with a REFUSED. Is this a resolved ...
- 1