The following table displays common well-known ports that you may want to allow or deny.
| 
 Protocol or Service  | 
 Port Number  | 
|---|---|
| 
 FTP  | 
 20  | 
| 
 SSH, SCP  | 
 22  | 
| 
 HTTP  | 
 80  | 
| 
 HTTPS  | 
 443  | 
| 
 rlogin  | 
 513  | 
| 
 RDP  | 
 3389  | 
After adding ports, you may want to add, change, or delete applications from the list of permitted applications. For more information, see Controlling Application Access to VPN Services.