Network Services
Network services were discussed in Chapter 16. inetd is a network daemon that runs on the system and listens on behalf of many server processes that are not started at boot time. The inetd daemon starts the appropriate server process when a request for that service is received. The /etc/inetd.conf file contains the list of services that inetd is to provide. The following is an entry from the /etc/inetd.conf file:
ftp stream tcp6 nowait root /usr/sbin/in.ftpd in.ftpd
The syntax for the entry is as follows:
<service_name> tli <proto> <flags> <user> <server_pathname> <args>
Each network service uses a port that represents an address space, which is reserved for that service. Systems communicate with each other through these ...
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