network can't ping domain inside

[nttec]

I have a domain within my proxmox network, but when I tried to ping it within the proxmox network, I can't ping this domain. but pinging that domain from outside proxmox is not a problem all works well. I don't have firewall installed on this centos container. other domain inside can be ping except for this one.

Any Idea where should I look?

 

[Stefan_R]

When you say "domain", do you mean a DNS entry? Does "outside proxmox" include other devices on the same network, or do you mean "outside" as in "on the internet"? Or outside as in VMs/CTs, but not the host?

Maybe try posting the ping commands you used and your network configuration.