Need Help with Firewall Configuration...


New Member
May 19, 2005

My firewall is in front of the mail gateway and should protect it. But which ports have to be open? and why?

S. Chu
Hello Chu!

The firewall setup information is available at our Adminguide Documentation:
Adminguide - PDF File

Addional a list of required ports:

Service Port Protocol From To
SMTP 25 TCP Proxmox Internet
SMTP 25 TCP Internet Proxmox
NTP 123 TCP/UDP Proxmox Internet
DCC 6277 UDP Proxmox Internet
DNS 53 TCP/UDP Proxmox DNS Server
HTTP 80 TCP Proxmox Internet

Regards, Christian


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