front 1 FTP | back 1 20/21 |
front 2 TFTP | back 2 69 |
front 3 SFTP | back 3 22 |
front 4 SSH | back 4 22 |
front 5 Telnet | back 5 23 |
front 6 SMTP | back 6 25 |
front 7 DNS | back 7 53 |
front 8 DHCP | back 8 67/68 |
front 9 HTTP | back 9 80 |
front 10 NTP | back 10 123 |
front 11 SNMP | back 11 161/162 |
front 12 LDAP | back 12 389 |
front 13 HTTPS | back 13 443 |
front 14 SMB | back 14 445 |
front 15 Syslog | back 15 514 |
front 16 SMTPS | back 16 587 |
front 17 LDAPS | back 17 636 |
front 18 SQL | back 18 1433 |
front 19 RDP | back 19 3389 |
front 20 SIP | back 20 5060/5061 |