Open Source Security Tools : Practical Guide to Security Applications part 46. Few frontline system administrators can afford to spend all day worrying about security. But in this age of widespread virus infections, worms, and digital attacks, no one can afford to neglect network defenses. Written with the harried IT manager in mind, Open Source Security Tools is a practical, hands-on introduction to open source security tools. | Page 429 Friday June 25 2004 1 41 PM Appendix C Well-Known TCP IP Port Numbers 429 fcp 510 tcp FirstClass Protocol fcp 510 udp FirstClass Protocol Mike Marshburn paul@ passgo 511 tcp PassGo passgo 511 udp PassGo John Rainford jrainford@ exec 512 tcp remote process execution authentication performed using passwords and UNIX login names comsat 512 udp biff 512 udp used by mail system to notify users of new mail received currently receives messages only from processes on the same machine login 513 tcp remote login a la telnet automatic authentication performed based on priviledged port numbers and distributed data bases which identify authentication domains who 513 udp maintains data bases showing who s logged in to machines on a local net and the load average of the machine shell 514 tcp cmd like exec but automatic authentication is performed as for login server syslog 514 udp printer 515 tcp spooler printer 515 udp spooler videotex 516 tcp videotex videotex 516 udp videotex Daniel Mavrakis system@ talk 517 tcp like tenex link but across machine - unfortunately doesn t use link protocol this is actually just a rendezvous port from which a tcp connection is established talk 517 udp like tenex link but across machine - unfortunately doesn t use link protocol this is actually just a rendezvous port from which a tcp connection is established ntalk 518 tcp ntalk 518 udp utime 519 tcp unixtime utime 519 udp unixtime efs 520 tcp extended file name server router 520 udp local routing process on site uses variant of Xerox NS routing information protocol - RIP ripng 521 tcp ripng Page 430 Friday June 25 2004 1 41 PM 430 Appendix C Well-Known TCP IP Port Numbers ripng 521 udp ripng Robert E. Minnear minnear@ ulp 522 tcp ULP ulp 522 udp ULP Max Morris maxm@ ibm-db2 523 tcp IBM-DB2 ibm-db2 523 udp IBM-DB2 Juliana Hsu jhsu@ ncp 524 tcp NCP ncp 524 udp NCP Don Provan .
