Default Port and its Assignments (http,https,LDAP,Telnet,SSH,FTP etc)

Operating System reserves first 1024 ports for its internal usage and each port within 1024 port has been assigned for different protocols. When I say reserved it means that only Root/Administrator user can change the preferences. Here are the list of ports and their default assignments.

Port	Usage
21	FTP
22	SSH
23	Telnet
80	HTTP
66	Oracle SQL
443	HTTPS
389	LDAP/OID
115	SFTP
143	IMAP
513	RAW/Rlogin
1521	Database Listener
8000	Oracle Applications http port
8100	Oracle Application PLS port
9000	Oracle Applications forms server port

More default ports to come.... Keep watching......

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