Network services, Internet style

tcpmux - 1/tcp 
echo - 7/tcp 
echo - 7/udp 
discard - 9/tcp - sink null 
discard - 9/udp - sink null 
systat - 11/tcp - users 
daytime - 13/tcp 
daytime - 13/udp 
netstat - 15/tcp
chargen - 19/tcp - ttytst source 
chargen - 19/udp - ttytst source 
ftp-data - 20/tcp 
ftp - 21/tcp 
telnet - 23/tcp 
smtp - 25/tcp - mail 
time - 37/tcp - timserver 
time - 37/udp - timserver 
name - 42/udp - nameserver 
whois - 43/tcp - nicname - # usually to sri-nic 
domain - 53/udp 
domain - 53/tcp 
hostnames - 101/tcp - hostname - # usually to sri-nic 
sunrpc - 111/udp - rpcbind
sunrpc - 111/tcp - rpcbind 



Host specific functions

tftp - 69/udp 
rje - 77/tcp 
finger - 79/tcp 
link - 87/tcp - ttylink 
supdup - 95/tcp 
iso-tsap - 102/tcp 
x400 - 103/tcp - # ISO Mail 
x400-snd - 104/tcp 
csnet-ns - 105/tcp 
pop-2 - 109/tcp - # Post Office 
pop3 - 110/tcp - # Post Office 
uucp-path - 117/tcp 
nntp - 119/tcp - usenet - # Network News Transfer 
ntp - 123/tcp - # Network Time Protocol 
ntp - 123/udp - # Network Time Protocol
NeWS - 144/tcp - news - # Window System 



UNIX specific services
these are NOT officially assigned

exec - 512/tcp 
login - 513/tcp 
shell - 514/tcp - cmd - # no passwords used
printer - 515/tcp - spooler - # line printer spooler 
courier - 530/tcp - rpc - # experimental 
uucp - 540/tcp - uucpd - # uucp daemon 
biff - 512/udp - comsat 
who - 513/udp - whod 
syslog - 514/udp 
talk - 517/udp 
route - 520/udp - router routed 
new-rwho - 550/udp - new-who - # experimental 
rmonitor - 560/udp - rmonitord - # experimental
monitor - 561/udp - # experimental 
pcserver - 600/tcp - # ECD Integrated PC board srvr
kerberos - 750/udp - kdc - # Kerberos key server 
kerberos - 750/tcp - kdc - # Kerberos key server 
ufsd - 1008/tcp - ufsd - # UFS-aware server 
ufsd - 1008/udp - ufsd 
ingreslock - 1524/tcp 
listen - 2766/tcp - # System V listener port 
nfsd - 2049/udp - nfs - # NFS server daemon (clts) 
nfsd - 2049/tcp - nfs - # NFS server daemon (cots) 
lockd - 4045/udp - # NFS lock daemon/manager
lockd - 4045/tcp 
noclog - 5354/udp - # NOCOL
hostmon - 5355/tcp 
dtspc - 6112/tcp - # CDE subprocess control 
fs - 7100/tcp - # Font server 
pmd - 1642/tcp