How to Prevent Veeam Reverse Proxy Service From Locking Port 80

To prevent the Veeam Reverse Proxy Service from listening on port 80, disable HTTPS redirection:

1. On the Veeam Backup & Replication server, open the following file in a text editor:
   C:\ProgramData\Veeam\ReverseProxy\Config\appsettings.json
2. Within the Service section, add the DisableHttpsRedirection parameter and set it to true. A comma must be added to the end of the preceding line.
   After the change, the Service section will appear as follows:

   "Service": {
     "Port": 443,
     "TlsHandshakeTimeout": "00:00:30",
     "DisableHttpsRedirection": true
   }
   

3. Save the file.
4. Restart the Veeam Reverse Proxy Service.
5. In Windows Firewall, disable the inbound rule Veeam Reverse Proxy Service (Https redirection) (In).
   
   Alternatively, the firewall rule can be disabled using the following PowerShell command: