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TCP/IP Port Descriptions Print E-mail
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Written by Chamara Withanachchi   

Following list contains most of the TCP/IP ports which use for TCP applications in IBM i

21File Transfer Protocol (FTP)
22Secure Shell (SSH), includes SFTP
23Telnet and TN5250 (Without SSL)
25SMTP (Email)
80HTTP (without SSL)
89Often used for Zend's PHP Server
110POP3 Email
143IMAP Email
389LDAP or IBM i Directory Server (*DIRSRV)
443HTTP over SSL/TLS
448DDM over SSL
448DDM over SSL
512RExec (RUNRMTCMD over TCP/IP)
515Line Printer Daemon (LPD) aka Remote Output Queue over TCP/IP
990FTP where SSL/TLS used in *IMPLICIT mode
992Telnet over SSL/TLS
2001IBM HTTP Administration
2010IBM HTTP Administration over SSL/TLS
9100HP JetDirect/PJL Printing (used by CRTDEVPRT *LAN)
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