/etc/services Dosyası - Port Numaralarına İsim Verir

Giriş

Açıklaması şöyle.

The canonical list of services is maintained by the IANA, but you can add local definitions; you might even see a “# Local services” comment at the end of your /etc/services file already.

Örnek

Şöyle yaparız

my-service-name    1234/tcp

Açıklaması şöyle.

Once that’s done, you’ll be able to write “0.0.0.0:my-service-name” instead of “0.0.0.0:1234”.

ssh

Örnek
Şöyle yaparız.

$ grep ssh /etc/services  
ssh             22/tcp         # SSH Remote Login Protocol 
ssh             22/udp

$ grep http /etc/services  
http            80/tcp          www             # WorldWideWeb HTTP            
http            80/udp                          # HyperText Transfer Protocol