Compex Technologies 18A User Manual

 

 

83 

 

The following is a non-exhaustive list of well-known port numbers: 

 

Echo 7 
Daytime 13 
FTP 21 
SMTP (Simple Mail Transfer, i.e., email) 

25 

Telnet 23 
Time 37 
Nameserver 42 
Gopher 70 
WWW (World Wide Web) 

80