Port Lookup

Port
Protocol
Description
Service
Assignee
503
TCP
Intrinsa
intrinsa
[Robert_Ford]
503
UDP
Intrinsa
intrinsa
[Robert_Ford]
504
TCP
citadel
citadel
[Art_Cancro]
504
UDP
citadel
citadel
[Art_Cancro]
505
TCP
mailbox-lm
mailbox-lm
[Beverly_Moody]
505
UDP
mailbox-lm
mailbox-lm
[Beverly_Moody]
506
TCP
ohimsrv
ohimsrv
[Scott_Powell]
506
UDP
ohimsrv
ohimsrv
[Scott_Powell]
507
TCP
crs
crs
[Brad_Wright]
507
UDP
crs
crs
[Brad_Wright]
508
TCP
xvttp
xvttp
[Keith_J_Alphonso]
508
UDP
xvttp
xvttp
[Keith_J_Alphonso]
509
TCP
snare
snare
[Dennis_Batchelder]
509
UDP
snare
snare
[Dennis_Batchelder]
510
TCP
FirstClass Protocol
fcp
[Mike_Marshburn]
510
UDP
FirstClass Protocol
fcp
[Mike_Marshburn]
511
TCP
PassGo
passgo
[John_Rainford]
511
UDP
PassGo
passgo
[John_Rainford]
512
TCP
remote process execution; authentication performed using pas...
exec
512
UDP
used by mail system to notify users of new mail received; cu...
biff