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Next: , Previous: Datagrams, Up: Sockets

16.11 The inetd Daemon

We've explained above how to write a server program that does its own listening. Such a server must already be running in order for anyone to connect to it.

Another way to provide a service on an Internet port is to let the daemon program inetd do the listening. inetd is a program that runs all the time and waits (using select) for messages on a specified set of ports. When it receives a message, it accepts the connection (if the socket style calls for connections) and then forks a child process to run the corresponding server program. You specify the ports and their programs in the file /etc/inetd.conf.

  Published under the terms of the GNU General Public License Design by Interspire