| Measure | Description | |---------|-------------| | | Avoid installing Veeam on servers already running IIS, Exchange, or other HTTPS services. | | Port auditing | Regularly run netstat -ano to monitor port usage. | | Installation order | Install Veeam first, then other web services (or reconfigure their ports immediately). | | Documentation | Maintain a "Port Usage Register" for critical infrastructure servers. |
To identify which application is using port 443, run the following command in an elevated Command Prompt or PowerShell: netstat -ano | findstr :443 | Measure | Description | |---------|-------------| | |
For a permanent solution:
Major Issues After Upgrading to Veeam V13: Port 443 Conflict | | Documentation | Maintain a "Port Usage
tasklist /svc /FI "PID eq 1234"
If you must keep the conflicting application on the same server, reconfigure it to use an alternative port (like Port 8443 or 4443). The agent itself does not listen on 443
A: Only when communicating with a Veeam Backup & Replication server. The agent itself does not listen on 443.