The PuTTY TCP/UDP should be configured as:
- Ports: 22
- Protocol: TCP
- Application Protocol: SSH
- Client Application: <PATH TO PuTTY> -ssh <Local IP> <First Port> -l <User>
"C:\putty\putty.exe" -ssh <Local IP> <First Port> -l <User>
Than this "PuTTY" service should have a "Target User" defined in your PAM Policy.