Add troubleshooting ssh azcmagent

Add troubleshooting cli to set ssh port on azcmagent.

Author: BenoitNgs

articles/azure-arc/servers/ssh-arc-troubleshoot.md

@@ -47,8 +47,15 @@ Possible errors:
  - {"level":"fatal","msg":"sshproxy: error copying information from the connection: read tcp 192.168.1.180:60887-\u003e40.122.115.96:443: wsarecv: An existing connection was forcibly closed by the remote host.","time":"2022-02-24T13:50:40-05:00"}
 
 Resolution:
- - Ensure that the SSHD service is running on the Arc-enabled server
- - Ensure that port 22 (or other non-default port) is listed in allowed incoming connections. Run ```azcmagent config list``` on the Arc-enabled server in an elevated session
+ - Ensure that the SSHD service is running on the Arc-enabled server.
+ - Ensure that port 22 (or other non-default port) is listed in allowed incoming connections. Run ```azcmagent config list``` on the Arc-enabled server in an elevated session. By default 6515 port is set, you need to change to 22.
+
+```powershell
+azcmagent config list
+azcmagent config get incomingconnections.port
+azcmagent config set incomingconnections.port 22
+azcmagent config
+```
 
 ## Azure permissions issues