Service Names

This section describes the related network library subroutines to map service names to port numbers.

A service is expected to reside at a specific port and employ a particular communication protocol. The expectation is consistent within the Internet domain, but inconsistent within other network architectures. Further, a service can reside on multiple ports. If a service resides on multiple ports, the higher level library subroutines must be bypassed or extended. Services available are contained in the /etc/services file.