Wednesday, October 6, 2010

Common Ports and Protocols


Common Ports and Protocols

Port Number  TCP/UDP    Protocol      Sample Server Programs
20 & 21             TCP               FTP                ProFTPd, WU FTPd
22                      TCP               SSH               OpenSSH, lsh
23                      TCP               Telnet             in.telnetd
25                      TCP               SMTP            sendmail, Postfix, Exim, qmail
53                      TCP & UDP   DNS              BIND
67                      UDP                DHCP           DHCP
69                      UDP                TFTP             in.tftpd
80                      TCP                HTTP           Apache, httpd
88                      TCP                Kerberos      MIT Kerberos, Heimdal
109 & 110         TCP                POP (versions 2 & 3) UW IMAP
111                  TCP &UDP      Portmapper      NFS, NIS, etc
113                  TCP                  auth/ident          identd
119                  TCP                  NNTP              INN,Leafnode
123                  UDP                  NTP                 NTP
137                  UDP                  NetBIOS          Samba
138                  UDP                  NetBIOS          Samba
139                  TCP                   NetBIOS          Samba
143                  TCP                   IMAP 2            UW IMAP
177                  UDP                  XDMCP           XDM, KDM, GDM
220                  TCP                   IMAP 3             UW IMAP
389                  TCP                   LDAP               OpenLDAP
443                  TCP                   HTTPS             Apache
445                  TCP                   Microsoft          DS Samba
514                  UDP                  Syslog               syslogd
515                  TCP                   Spooler             BSD LPD, LPRng, cups-lpd
636                  TCP                   LDAPS             OpenLDAP
749                  TCP                   Kerberos           MIT Kerberos, Heimdal

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