portnumbers in servers

port number                application
21                         ftp
22                         ssh
23                         telnet
25                          smtp mail port
53                         dns port
67                         dhcp server
79                         finger command for smtp mail server ETRN finger port
80                         http port
110                        pop3 port
115                       sftp port
123                       network time protocal port
143                       imap4 port
177                       xmanager port tcp
389                       ldap port
443                       hhtp port (ssl)
445                       microsoft active directory and smb protocal port
465                       google mail outgoing mail server
636                       ldap(ssl)
993                       secure internet message access protocalport
1433                      sql server port
1434                      sql  server monitoring port
1521                      oracle port
2000                      cisco ip phone port
3306                      default mysql port
3389                      remote desktop port and terminal server port
5900                      real vnc default remote control port
6000                     tcp port for xmanager port
8080                     http internet traffic port