User guide

Well-Known Services List
Reference Guide 31
Service Name Port # Protocol Description
tcpmux 1 TCP/UDP TCP Port Service Multiplexer
compressnet 2,3 TCP/UDP Management Utility
rje 5 TCP/UDP Remote Job Entry
echo 7 TCP/UDP Echo
discard 9 TCP/UDP Discard
systat 11 TCP/UDP Active Users
daytime 13 TCP/UDP Daytime
qotd 17 TCP/UDP Quote of the Day
msp 18 TCP/UDP Message Send Protocol
chargen 19 TCP/UDP Character Generator
ftp-data 20 TCP/UDP File Transfer [Default Data]
ftp 21 TCP/UDP File Transfer [Control]
ssh 22 TCP/UDP SSH Remote Login Protocol
telnet 23 TCP/UDP Telnet
smtp 25 TCP/UDP Simple Mail Transfer
nsw-fe 27 TCP/UDP NSW User system FE
msg-icp 29 TCP/UDP MSG ICP
msg-auth 31 TCP/UDP MSG Authentication
dsp 33 TCP/UDP Display Support Protocol
time 37 TCP/UDP Time
rap 38 TCP/UDP Route Access Protocol
rlp 39 TCP/UDP Resource Location Protocol
graphics 41 TCP/UDP Graphics
nameserver 42 TCP/UDP Host Name Server
nicname 43 TCP/UDP whois
mpm-flags 44 TCP/UDP MPM Flags
mpm 45 TCP/UDP MPM
mpm-snd 46 TCP/UDP MPM Send
ni-ftp 47 TCP/UDP NI FTP