Port Lookup

Port
Protocol
Description
Service
Assignee
48
UDP
Digital Audit Daemon
auditd
[Larry_Scott]
49
TCP
Login Host Protocol (TACACS)
tacacs
[Pieter_Ditmars]
49
UDP
Login Host Protocol (TACACS)
tacacs
[Pieter_Ditmars]
50
TCP
Remote Mail Checking Protocol
re-mail-ck
[Steve_Dorner]
50
UDP
Remote Mail Checking Protocol
re-mail-ck
[Steve_Dorner]
52
TCP
XNS Time Protocol
xns-time
[Susie_Armstrong]
52
UDP
XNS Time Protocol
xns-time
[Susie_Armstrong]
53
TCP
Domain Name Server
domain
[Paul_Mockapetris]
53
UDP
Domain Name Server
domain
[Paul_Mockapetris]
54
TCP
XNS Clearinghouse
xns-ch
[Susie_Armstrong]
54
UDP
XNS Clearinghouse
xns-ch
[Susie_Armstrong]
55
TCP
ISI Graphics Language
isi-gl
55
UDP
ISI Graphics Language
isi-gl
56
TCP
XNS Authentication
xns-auth
[Susie_Armstrong]
56
UDP
XNS Authentication
xns-auth
[Susie_Armstrong]
57
TCP
any private terminal access
[Jon_Postel]
57
UDP
any private terminal access
[Jon_Postel]
58
TCP
XNS Mail
xns-mail
[Susie_Armstrong]
58
UDP
XNS Mail
xns-mail
[Susie_Armstrong]
59
TCP
any private file service
[Jon_Postel]