netstat -a showing port numbers

[chris2005]

Hi there,

Check the attachement:


*.ssh or *.www represents particular port numbers. How are these variables 'resolved' into real port numbers like port 22 for .ssh?

Thanx in advance.

REgards,
Chris

[Irithori]

It´s the other way around: port numbers and protocolls get resolved into names.

Usually this is done via entries in /etc/services, which in turn is defined here
Service Name and Transport Protocol Port Number Registry

Afaik, the backend doesnt have to be this file.
You can -if you want and have a real good reason to do so- also use other backends.

[chris2005]

Thanks for your asnwer.

Regards,
Chris