Firewall Requirements (AVG Business Antivirus)

For overall functionality, and to enable the AVG Business Antivirus clients to authenticate/update, you must allow certain ports and URL addresses through your Firewall or Proxy Server.

Ports

TCP & UDP:

• 80 – Internet Vulnerability Checks and Feature Updates

URLs

• *.avast.com
• *.avg.com
• *.avcdn.net
• *.mailshell.net (only if using Anti-Spam)