LXC installation fails due to DNS issue with raw.githubusercontent.com

[Hamed Roshan]

Hello,
I am experiencing an issue while installing an LXC container on Proxmox VE.
Environment:
Proxmox VE: 9.1.4
Kernel: 6.17.4-2-pve
Container OS: Debian 13 (unprivileged)
Network: IPv4 working, IPv6 disabled/not used
Problem: The container is created successfully and has IPv4 connectivity, but the installation script fails when trying to access GitHub raw content.
Output excerpt:

IPv4 Internet Connected
Git DNS:
github.com: ✓
api.github.com: ✓
git.community-scripts.org: ✓
raw.githubusercontent.com: ✗

Installation failed (exit code: 130)
The script hangs while accessing raw.githubusercontent.com, leading to a manual interrupt (SIGINT).
Notes:
DNS appears to be the issue, not general connectivity
Public DNS servers (1.1.1.1 / 8.8.8.8) were tested
Other GitHub domains resolve correctly
Question: Is there a recommended Proxmox or LXC DNS configuration to avoid issues accessing raw.githubusercontent.com during automated installations?
Thank you.

 

[aaron]

How are you installing these containers? The output looks a lot like some 3rd party community scripts not provided by Proxmox. So I would ask there why things might be failing. As it could very well be something going wrong there and not on the container side.