| Port Forwarding for ZLS Linux Servers | |||||
| Description | Protocol | External Port | Internal Port | ||
| DynDNS , Monitoring | UDP | 58800 | 58800 | ||
| Ssh | TCP | 22 | 22 | 
 | 
 | 
| Alternate ssh | TCP | 2022 | 2022 | ||
| Webmail etc | TCP | 80 | 80 | ||
| HTTPS | TCP | 443 | 443 | ||
| POP3 | TCP | 110 | 110 | ||
| POP3s | TCP | 995 | 995 | ||
| Webmail etc | TCP | 80 | 80 | ||