Help: Services
 
Introduction The services table is for reference only. You cannot add or delete services here. Please edit /etc/services if you need to add or change any of these.
Set up The services list is generated by reading the /etc/services file.

You can add new services to the list by editing the file /etc/services


What do the
colours mean?
Different services are colour coded to enable them to be identified more easily. The colour codes are:

TCP Services:

  • Low numbered ports are magenta. These ports usually relate to privileged TCP services (eg: WWW servers).
  • High numbered ports are dull yellow. These ports usually relate to unprivileged TCP services (eg: proxy servers).
UDP Services:

  • Low numbered ports are red. These ports usually relate to privileged UDP services (eg: DNS).
  • High numbered ports are cyan. These ports usually relate to unprivileged UDP services (eg: RADIUS).
Other services are blue. These usually relate to ICMP, DDP, GRE, and other protocols.