[SOLVED] Setup RSH

[chrisplough]

In some environments, you may have to setup RSH to allow scripts to run commands on remote servers. An example would be a centralized restart script (perhaps used as part of a clustered or HACMP solution) that needs to restart OTM on remote servers. While I prefer to use SSH, since it is much more secure, some environments don't allow it. Here's a quick overview on how to setup it up on a Red Hat server:

Info:
[hostname_1] - host that will initiate rsh commands
[hostname_2] - host where rsh commands will be run

1. Check that rsh is installed on [hostname_2]:

rpm -qa | grep rsh-server

2. If does not exist, need to install the rsh-server RPM package: rsh-server-*.rpm

up2date --install rsh-server

3. Next enable rsh on [hostname_2]:

chkconfig rsh on

4. Append the following per lines to the /etc/securetty file on [hostname_2]:

rsh

5. Allow certain hosts to connect via rsh to [hostname_2]:

echo [hostname_1] >/root/.rhosts

6. Restart the xinitd service on [hostname_1]:

/etc/rc.d/init.d/xinetd restart

You should now be able to test this by going to the remote host and running:

rsh [hostname_2] -l root ls

Hope this helps!

--Chris