Firewall Requirements

This Article Applies to:

  • Avast Business Cloud Console
  • Avast Business On-Premise Console
  • Avast Business Antivirus

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

Ports

TCP & UDP:

  • 53 – Secure DNS services
  • 80 – Internet Vulnerability Checks and Feature Updates
  • 135 – DCOM
  • 443 – FFL Encryption Key Negotiation
  • 8080, 8090 – Communication Between Console and Client(s)
  • 4158 – Mirror, for Local Updates
  • 7074 – Remote Deployment

URLs

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