Port number Service Why it's phun!
7 echo Whatever you type in, the host repeats back to you
9 discard Dev/null -- how fast can you figure out this one?
11 systat Lots of info on users
13 daytime Time and date at computer's location
15 netstat Tremendous info on networks
19 chargen Pours out a stream of ASCII characters. Use ^C to stop.
21 ftp Transfers files
23 telnet Where you log in.
25 smpt Forge email from [email protected].
37 time Time
39 rlp Resource location
43 whois Info on hosts and networks
53 domain Nameserver
70 gopher Out-of-date info hunter
79 finger Lots of info on users
80 http Web server
110 pop Incoming email
119 nntp Usenet news groups -- forge posts, cancels
443 shttp Another web server
512 biff Mail notification
513 rlogin Remote login
who Remote who and uptime
514 shell Remote command, no password used!
syslog Remote system logging
520 route Routing information protocol