Cheat Sheet : Known Ports & Protocol
Its always good to know some common ports and protocol Ids that are used in attacks. Here is a list of some common ones: Protocols 1 ICMP 6 TCP 17 UDP 47 GRE 50 ESP 51 AH Ports 20 - 21 FTP 22 SSH 23 Telnet 25 SMTP 42 WINS 53 DNS 80, 81, 8080 HTTP 88 Kerberos 110 POP3 111 Portmapper (Linux) 119 NNTP 123 NTP 135 RPC-DCOM 137, 138, 139 SMB 143 IMAP 161, 162 ...