Installing and Administering LAN/9000 Software

Chapter 3 57
Manually Installing and Configuring LAN/9000
Activating Optional Network Features
Activating Optional Network Features
To activate special network features, you may also want to configure
/etc/services, /etc/networks, and /etc/protocols. Each of these
steps is optional.
NOTE If you are using NIS, modifications to the /etc/services,
/etc/networks, /etc/protocols files should only be made on the NIS
Master Server. Refer to Installing and Administering NFS Services for
more information.
Modifying the /etc/services File
The /etc/services file associates port numbers with mnemonic service
names and alias names. The /etc/services file contains the names,
protocol names, and port numbers of all services known to your local
host. The netstat diagnostic uses the /etc/services file.
If you install Internet Services/9000 or NFS/9000, those products will
also use the /etc/services file.
NOTE You can modify this file if you have special requirements, but it is
properly configured when you receive LAN/9000.
/etc/services
Each service has a one-line entry in the /etc/services file. Each entry
in /etc/services file takes the following form:
Syntax
service_name port_num / protocol [ alias ]...
Parameters
service_name Name of the service. Service names can contain any
printable character except spaces, newline, or the