Commands Reference, Volume 4

rlogind Daemon

Purpose

Provides the server function for the rlogin command.

Syntax

Note: The rlogind daemon is normally started by the inetd daemon. It can also be controlled from the command line, using SRC commands.

/usr/sbin/rlogind [ -c ] [ -l ] [ -n ] [ -s ]

Description

The /usr/sbin/rlogind daemon is the server for the rlogin remote login command. The server provides a remote login facility.

Changes to the rlogind daemon can be made using Web-based System Manager, the System Management Interface Tool (SMIT) or System Resource Controller (SRC), by editing the /etc/inetd.conf or /etc/services file. Entering rlogind at the command line is not recommended. The rlogind daemon is started by default when it is uncommented in the /etc/inetd.conf file.

The inetd daemon get its information the /etc/inetd.conf file and the /etc/services file.

After changing the /etc/inetd.conf or /etc/services file, run the refresh -s inetd or kill -1 InetdPID command to inform the inetd daemon of the changes to its configuration file.

Service Request Protocol

When the rlogind daemon receives a service request, the daemon initiates the following protocol:

The rlogind daemon checks the source port number for the request. If the port number is not in the range 512-1023, the rlogind daemon terminates the connection.
The rlogind daemon uses the source address of the initial connection request to determine the name of the client host. If the name cannot be determined, the rlogind daemon uses the dotted-decimal representation of the client host address.

Error Messages

The following error messages are associated with the rlogind daemon:

Try again.	A fork command made by the server has failed.
/usr/bin/shell:	No shell. The shell specified for the shell variable cannot be started. The shell variable may also be a program.

Flags

-c	Suppresses the reverse hostname lookup.
-l	Prevents any authentication based on the user's $HOME/.rhosts file. However, a root user is automatically logged in when there is a .rhosts file in root's home directory as specified by the /etc/passwd file.
-n	Disables transport-level keep-alive messages. The messages are enabled by default.
-s	Turns on socket level debugging.

Examples

Note: The arguments for the rlogind daemon can be specified by using SMIT or by editing the /etc/inetd.conf file.

To start the rlogind daemon, enter the following:
startsrc -t rlogin
This command starts the rlogind subserver.
To stop the rlogind daemon normally, enter the following:
stopsrc -t rlogin
This command allows all pending connections to start and existing connections to complete but prevents new connections from starting.
To force stop the rlogind daemon and all rlogind connections, enter the following:
stopsrc -t -f rlogin
This command terminates all pending connections and existing connections immediately.
To display a short status report about the rlogind daemon, enter the following:
lssrc -t rlogin
This command returns the daemon's name, process ID, and state (active or inactive).

Related Information

The kill command, lssrc command, refresh command, rlogin command, startsrc command, stopsrc command.

The rshd daemon, inetd daemon, syslogd daemon.

The pty special file.

The $HOME/.rhosts file format, /etc/hosts.equiv file format, /etc/inetd.conf file format.

TCP/IP Daemons in AIX 5L Version 5.1 System Management Guide: Communications and Networks.

For information on installing the Web-based System Manager, see Chapter 2: Installation and System Requirements in AIX 5L Version 5.1 Web-based System Manager Administration Guide.