Firewall Requirements

 

For overall functionality, and to enable the Antivirus client and/or the management console to authenticate/update, you must allow certain ports and URL addresses through your firewall or proxy server.

 

Business Hub, On-Premise Console, and Managed Local Clients

Ports

• UDP 53 – Secure DNS services (only if using Real Site component)
• TCP 80 – Internet vulnerability checks and feature updates
• TCP/UDP 443* – Encrypted communication
• TCP 8080*, 8090* – Communication between console and clients within local network (only for On-Premise Console)
• TCP 4158 – Mirror, for local updates within local network
• TCP 7074 – Remote Deployment within local network
• TCP 7500 - For push notification services

*These are the default ports, which the administrator can modify during or after setup if needed. Note that any changes should be reflected in the firewall configuration.

URLs

• *.avast.com
• *.avcdn.net
• islonline.net (Hub only, for Remote Control)
• *.managedoffsitebackup.net (Hub only, for Cloud Backup)
• *.sosonlinebackup.com (Hub only, for Cloud Backup)
• URLs required by application vendors - Patch Management will download the necessary patches directly from the vendors; therefore, the connections must be allowed in order for the service to operate correctly.

CloudCare

Ports

• TCP 80 - Internet Vulnerability Checks and Feature Updates
• TCP 443 - basic communication between the portal and the installed clients
• UDP 123 - accessing public time servers to prevent tampering with the Content Filtering Schedule settings
• TCP/UDP 135 - for remote deployment
• TCP/UDP 5222 - for XMPP communication

URLs

• *.avast.com
• *.avg.com
• *.avcdn.net
• *.m.in-app.io
• islonline.net (for Premium Remote Control)
• *.sosonlinebackup.com (for Cloud Backup)
• *.managedoffsitebackup.net (for Cloud Backup)
• URLs required by application vendors - Patch Management will download the necessary patches directly from the vendors; therefore, the connections must be allowed in order for the service to operate correctly.

Unmanaged Local Clients

Ports

• UDP 53 DoH enabled – Secure DNS services (only if using Real Site component)
• TCP 80 – Internet Vulnerability Checks and Feature Updates
• TCP/UDP 443 – Encrypted communication
• TCP 7500 - For push notification services

URLs

• *.avast.com
• *.avcdn.net

Geoblocking

Avast web services are hosted in many countries around the world. Therefore, we do not recommend geoblocking in your firewall settings. If geoblocking is necessary, we recommend setting URL Allow rules to supersede geoblocking, so Avast traffic can still be allowed.