20 | : FTP - used for data up/download |
21 | : FTP - used for control streams |
22 | : SSH - used for secure logins |
23 | : Telnet - unencrypted text communications |
25 | : SMTP - Simple Mail Transfer Protocol |
80 | : HTTP - used for transferring web pages |
109 | : POP2 - used for retrieving E-mails |
110 | : POP3 - used for retrieving E-mails |
119 | : NNTP - used for retrieving newsgroups messages |
143 | : IMAP4 - used for retrieving E-mails |
194 | : IRC - Internet Relay Chat |
443 | : HTTP over SSL |
465 | : SMTP over SSL |
993 | : IMAP4 over SSL |
995 | : POP3 over SSL |