All Questions
Tagged with network-manager dns
302
questions
0
votes
1
answer
54
views
DNS precedence rules for multiple interfaces
In 24.04, I have multiple network interfaces - my home WiFi, and then a separate ethernet interface (really, a LTE modem that presents an ethernet device) which has access to my employer's network.
I ...
- 41
1
vote
2
answers
296
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 ...
- 11
0
votes
0
answers
33
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
145
views
Ubuntu 22.04 wifi connection is lost every x minutes
A week or two ago my wifi started losing the connection every 10-20 minutes. As far as I am aware I did not do any updates or anything prior to this. I have tried all sorts of solutions found online, ...
- 101
0
votes
1
answer
110
views
DNS servers and public hotspots - 25% of them fail and solution is hard to find
At about 25% of random wifi hotspots I have no trouble connecting with my phone, but my linux does not connect. I tried everything in this post.
nslookup google.com does not work
➜ ~ nslookup google....
- 103
0
votes
0
answers
92
views
Ubuntu server cant ping outside network &| DNS (Temporary failure in name resolution)
My network on the server is not working, help much appreciated
default via 192.168.50.1 dev eno1 proto static
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.50.0/...
- 1
0
votes
0
answers
42
views
NetworkManager rewrites name servers in config file
I have a wifi network connection that has a config file
/etc/NetworkManager/system-connections/MyNetwork.nmconnection
Name resolving did not work, so I added my provider's name servers.
But upon ...
- 125
1
vote
0
answers
60
views
Cannot resolve hostnames on ping after upgrading from 18.04 to 20.04
I have recently upgraded a server running 18.04 to 20.04. The in-place upgrade seemed to go fine and installed without a hiccup, however the end goal is to upgrade to 22.04 and when I went to go run ...
- 11
0
votes
0
answers
92
views
Xubuntu 22.04: no DNS after PXE/overlay boot
I am using dnsmasq on my server to boot our clients via PXE (both traditional BIOS and UEFI); the NFS-root is readonly and the clients use an overlay-root. This worked fine for Xubuntu 18.04 clients.
...
- 11
-1
votes
1
answer
564
views
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....
- 11
0
votes
0
answers
92
views
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 ...
- 1
0
votes
0
answers
88
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 ...
0
votes
0
answers
617
views
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 ...
- 1
1
vote
0
answers
191
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 ...
- 11
1
vote
1
answer
742
views
When change the hostname the content of the file /etc/hosts must be updated manually?
I work with lubuntu 22.04. To set the hostname I would like to use the nmcli command as following:
nmcli general hostname "new-hostname"
The previous command set the new hostname in the ...
- 435
1
vote
1
answer
2k
views
ping works but internet connection times out [Ubuntu 22.04, ethernet connection]
I am currently connected to the internet through ethernet. However, I am not able to connect to the internet. On running the command
sudo apt-get update
I get
Cannot initiate the connection to ...
0
votes
1
answer
385
views
ip4.dns option ignores after updrade 20.04 to 22.04
I have few broadband connections with flag ipv4.ignore-auto-dns: yes in my NewtorkManager connections list. In 20.04 activation of such connection causes correct configuration of custom name serves, ...
- 1
1
vote
1
answer
1k
views
How to prevent warp-cli from overwriting /etc/resolv.conf file
Whenever I connect with warp-cli, it always generates a new resolv.conf file, as a result, if I ever disconnect from warp-cli I lose my internet connection, even though ping 8.8.8.8 and ping localhost ...
- 133
0
votes
0
answers
116
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 ...
2
votes
4
answers
15k
views
Ubuntu 22.04.1 nameservers keep getting overwritten
I upgraded from Ubuntu 20.04 to 22.04.1 yesterday.
Now, whenever I toggle wifi back on (from temporarily being off), I have no internet access.
I checked:
ls -lah /etc/resolv.conf
lrwxrwxrwx 1 root ...
- 439
1
vote
0
answers
104
views
Use a DNS server to resolve company subdomains and another DNS for other
This might be an easy thing, but I couldn't find a solution for it.
We have a Widnows DNS server in company which resolves:
if the queried name is a subdomain of mycompany.net (such as nexus....
- 151
0
votes
0
answers
276
views
Ubuntu 22.04 LTS wifi connected but no working
No problem with computer before connected to a airport wifi, I did using VPN.
I don't know if its correlated but I'm desparate and I'm looking to check everything to solve it
1)
I turned off my PC and ...
- 49
1
vote
0
answers
240
views
Connect Multiple Interfaces on Raspberry Pi
I use my raspi as a local DNS resolver (Pi-hole). My router has 2 networks "Home" & "Guest". As usual, the guest client can't reach my raspi as it is on the home network so the ...
0
votes
1
answer
1k
views
Network is unreachable / Temporary failure in name resolution
I've been using Ubuntu 22.04.1 LTS (x64) via VMWare (my main OS is Windows 10) for the last month.
Recently when I try to ping (www.google.com for example) I get
ping: www.google.com: Temporary ...
0
votes
1
answer
807
views
Netplan static address plus dhcp address on same interface with priority to static address
I have a small home server than I occasionally move between networks. I want it to have a static IP for accessing services running on it, but also a DHCP IP so that when I move networks it will always ...
1
vote
0
answers
219
views
Ubuntu 22.04 ethernet stop to function out of a sudden
For three days my Ubuntu 22.04 installation behaves strangely. The laptop starts fine. After a few hours I see a high load. I do not know if this is related, nor I could see any process which is ...
- 111
2
votes
0
answers
168
views
Is there a way to reset the network manager or its settings?
I'm looking for a way to complete reset the configuration or the service it self. I'm not sure it this will fix my issue, which is very unstable connections on some wifi networks. A have been using ...
0
votes
1
answer
205
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
2
votes
0
answers
5k
views
Internet fails to connect on Ubuntu 22.04
I recently upgraded from Ubuntu 20.04 to 22.04.
On waking up the laptop from sleep, the Wi-Fi gets connected but fails to connect to the internet; switching off Wi-Fi and then switching on doesn't ...
0
votes
1
answer
4k
views
DNS not working on 22.04 server
I have a new Ubuntu 22.04 server build on a Raspberry Pi with a Sierra Aircard 320U USB modem providing internet access. Network Mamager is installed as is Modem Manager. I built the system and ...
0
votes
1
answer
4k
views
Temporary failure in (DNS) Name Resolution / 20.04
"Temporary failure in (DNS) Name Resolution"
Background:
I work in healthcare security with approximately ~125 servers across a dozen clients across the US
The appliances are both physical ...
- 31
1
vote
1
answer
234
views
Why is Ubuntu 20.04.3 internet access not working?
My Ubuntu OS is connected to the my working internet network, but any internet-reliant services have not been functioning properly. This includes downloading anything (including any packages from the ...
- 21
1
vote
0
answers
439
views
Ubuntu 21.10 VPN disconnection does not revert back to original DNS server in /etc/resolv.conf
When I disconnect from my company's VPN in Ubuntu 21.10 (using Gnome GUI for VPN connect/disconnect), I do not have previous DNS server entries in /etc/resolv.conf. Can anybody help sorting this issue ...
- 421
4
votes
2
answers
3k
views
Ubuntun 22.04: when connected with NetworkManager OpenVPN, DNS doesn't use the VPN DNS server
I am running Ubuntu 22.04
I have an OpenVPN to my company via NetworkManager in gnome.
Most of the interal systems work, but for example portal.azure.com has 2 DNS records, a public and private zone ...
- 41
0
votes
2
answers
1k
views
DNS doesn't work for mobile broadband (22.04 LTS)
While I can connect to mobile broadband with Ubuntu 22.04 and I can transmit packets (ping 8.8.8.8 works fine), DNS resolution doesn't work. The result is that I can't use the internet connection.
...
- 101
0
votes
0
answers
343
views
Incredibly slow and intermitting internet connection on a private network with custom DNS Ubuntu 20.04
I am experiencing a very weird phenomenon on a Lenovo Thinkpad E15 with Ubuntu 20.04, specs:
.-/+oossssoo+/-. pc@user
`:+ssssssssssssssssss+:` -------------...
- 165
0
votes
1
answer
1k
views
Ubuntu 18.04 requires a manual dhclient command for network to work. Why? And how to fix it?
At least since a week ago, my ubuntu 18.04 sometimes does not have internet access. Despite that it shows in the GUI the wifi icon like normal.
Interestingly, dig @8.8.8.8 google.com works, but ping ...
- 1,361
0
votes
0
answers
373
views
How to fix No ethernet and no WiFi working on Ubuntu 20.04
I was performing a DNS Lookup using a custom .c file i've written (while on a VPN) and suddenly I lost internet connection and I can't even access the WiFi settings.
I've also tried connecting to ...
- 121
1
vote
0
answers
620
views
Ubuntu 20.04 connects to wifi but no internet access
Hi I recently installed Ubuntu 20.04 and I don't know what I did accidentally so now I don't have internet access
first it was just connection to my ADSL and I solve it by manually adding ip and mask ...
0
votes
2
answers
215
views
How I can update DNS in /etc/resolve.conf from /etc/resolvconf/resolv.conf.d/tail without rebooting system
How I can update DNS in /etc/resolve.conf from /etc/resolvconf/resolv.conf.d/tail without rebooting system
I made below entries in file
root@server1:/etc/resolvconf/resolv.conf.d
# cat tail
...
- 1
1
vote
1
answer
3k
views
Ubuntu 20.04 Network Manager Wireguard DNS Leak
I added my Peer-Config from Wireguard to Network Manager manually:
[Interface]
Address = 10.13.13.5
PrivateKey = key
ListenPort = 51820
DNS = 10.13.13.1, lan
[Peer]
PublicKey = key
Endpoint = ...
- 11
1
vote
1
answer
4k
views
dnsmasq and NetworkManager DNS
I have a small network of computers that can be moved between sites.
These computers are connected to a switch, and one of them acts as DHCP server and DNS server via dnsmasq for this network, let's ...
- 146
0
votes
0
answers
147
views
Cannot connect to the wired internet on Ubuntu 20.04
I have an issue similar to what is described here. I tried all the answers in that posting as well as other similar questions with no luck. I have also zero understanding in networking and really need ...
- 121
0
votes
1
answer
4k
views
dns probe finished nxdomain linux ubuntu 20.04
I'm having problems with my DNS in Ubuntu. The webpage won't show up. I've been trouble shooting for hours.
I have tried clearing the cache but none of the commands work.
I have tried it this way ...
1
vote
0
answers
3k
views
Ubuntu 20.04.3 LTS: Etherrnet Connection DNS address could not be found DNS_PROBE_POSSIBLE
I have run into this problem before using ubuntu 20.04.03 desktop and I had to reinstall the OS. I cant afford to do that this time so I hope you can help. I have no idea how to diagnose the issue, ...
- 93
0
votes
1
answer
202
views
Can't update after NIC Teaming/Bonding Linux Server
So, I'm a noob when it comes to Networking on Ubuntu. I created a bond/NIC Teaming on my Ubuntu Desktop for the 2 NIC cards that I have on it, but I'm unable to resolve DNS names. This is making my ...
- 11
1
vote
0
answers
2k
views
Temporary failure in name resolution Ubuntu 20.04.3 LTS
I have a brand new machine and get this error after every reboot.
$ ping google.com
ping: google.com: Temporary failure in name resolution
$ cat /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
...
- 131
14
votes
3
answers
24k
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 ...
- 143
0
votes
0
answers
896
views
how to : systemd-resolve writes a bad resolv.conf doesn't read settings
This problem is a blocking issue, it does prevent me from using my laptop and accessing internet.
Using Ubuntu 20.04.3 latest update Oct 19th
After the one but last update oct 10th suddenly I had a ...
0
votes
1
answer
885
views
How to install DNS over TLS profile in Ubuntu 20.04?
I have been using Ahadns for quite some time now and on Android I set my private DNS to dot.in.ahadns.net simply and it works. Can anyone guide me on how to apply this DNS on my Ubuntu 20.04 ...
