Can't start any apps on my Truenas Scale instance

Apps and Virtualization
1

Hi, I have a Truenas Scale server that is running on an i5 8600k and a z370p motherboard. The problem have is that when I try to install an app like tailscale I get a warning saying:

[EFAULT] Failed 'up' action for 'tailscale' app. Please check /var/log/app_lifecycle.log for more details

and when I look into the app_lifecycle.log file I get:

[2025/03/05 22:42:42] (ERROR) app_lifecycle.compose_action():56 - Failed 'up' action for 'tailscale' app:  tailscale Pulling 
 tailscale Error Get "https://ghcr.io/v2/": dial tcp: lookup ghcr.io on 192.168.0.1:53: no such host
Error response from daemon: Get "https://ghcr.io/v2/": dial tcp: lookup ghcr.io on 192.168.0.1:53: no such host

when I try nslookup on hostname I get an ip, and that’s the same for any app I try to install. Does anyone know what the problem is?

2

Well, it’s failing to resolve ghcr.io using 192.168.0.1 as the DNS provider. I guess you noticed that since you’re trying nslookup.

Are you doing nslookup from your TrueNAS system, or a different system on the network? Have you tried assigning a different DNS to TrueNAS at least for troubleshooting?

1 Like
3

Thank you for the help, it’s true when I ran the dig command on ghcr.io I could not find anything. I tried changing the dns server on truenas, and it works, it seams like my router did not have the dns entry for ghcr.io

1 Like
4

My router was blacklisting Russia and China, and that killed apps FWIW.