front 1 FTP control | back 1 TCP 21 |
front 2 FTP data | back 2 TCP 20 |
front 3 SSH | back 3 TCP 22 |
front 4 Telnet | back 4 TCP 23 |
front 5 SMTP | back 5 TCP 25 |
front 6 DNS | back 6 UDP 53 |
front 7 DHCP/BOOTP server | back 7 UDP 67 |
front 8 DHCP/BOOTP client | back 8 UDP 68 |
front 9 HTTP | back 9 TCP 80 |
front 10 POP3 | back 10 TCP 110 |
front 11 IMAP4 | back 11 TCP 143 |
front 12 SNMP manager | back 12 UDP 161 |
front 13 SNMP agent | back 13 UDP 162 |
front 14 HTTPS | back 14 TCP 443 |
front 15 RDP | back 15 TCP 3389 |
front 16 LDAP | back 16 TCP 389 |
front 17 SMB/CIFS | back 17 TCP 445 |
front 18 NetBIOS/NetBT | back 18 TCP/UDP 137 UDP 138 TCP 139 |
front 19 SLP | back 19 UDP/TCP 427 |
front 20 AFP | back 20 TCP 548 |
front 21 IMAPS | back 21 TCP 993 |
front 22 POP3S | back 22 TCP 995 |
front 23 SMTPS | back 23 TCP 587 |