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Other application layer protocols exist that are also implemented as a program on the local machine and a daemon on the remote machine. Examples of these are rlogin(1tcp) and rlogind(1Mtcp), which permit a user to log on to a remote machine; rsh(1tcp) and rshd(1Mtcp), which enable the user to spawn a shell on a remote machine; and finger(1tcp) and fingerd(1Mtcp), which permit a user to obtain information about users on remote machines.
To avoid having an excess of daemons running at all times, the daemon inetd(1Mtcp) is initiated at startup time. After consulting the /etc/inetd.conf file (see inetd.conf(4tcp)), inetd runs the appropriate daemons as needed. For example, the daemon rlogind will be run by inetd whenever there is a request for a remote login from another machine. Note that rlogind runs only when the remote login request is made and only for the duration of the remote login.