PORT NO PROTOCOL USAGE
21 FTP TRANSFERING FILES
22 SSH SECURE REMOTE ADMIN
23 TELNET REMOTE LOGIN
25 SMTP SENDING MAILS
69 TFTP TRANSFERING FILES (NO AUTH.)
80 HTTP WORLD WIDE WEB
110 POP3 RECIEVING MAILS
119 NNTP READING AND POSTING NEWS
143 IMAP RECIEVING MAILS
161 SNMP NETWORK MANAGEMNET
162 SNMPTRAP NETWORK MANAGEMNET
179 BGP ROUTING
213 IPX DATA TRANSFER
389 LDAP USER INFORMATION
