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Setting Up crlogin to Work via SSH Using Sun Cluster 3.0/3.1 Software

Alec Effrat, October 2007

This tech tip provides five easy steps for using SSH with crlogin, which makes it easier to administer multiple servers or clusters. This information applies to Sun Cluster 3.0 and 3.1 software on the Solaris OS for SPARC platforms, release 9 and above.

1. Install the Cluster Console package on your workstation:

pkgadd -d
somepath/suncluster_3_1_u1/SunCluster_3.1/Sol_9/Packages/ SUNWccon

2. Find some place in your $PATH that is before the system /usr/bin/rlogin binary. I use ~/bin.

~/bin <22>$ echo $PATH | tr ':' '\n'
  /space/home/alec/adabas/bin
  /space/home/alec/adabas/pgm
  /space/home/alec/bin
  /usr/local/bin
  /usr/sbin
  /usr/bin
  /usr/ucb
  ...

3. Place the following script in that path:

~/bin <8>$ cat rlogin
#!/bin/sh /usr/bin/ssh $*
~/bin <9>$ chmod a+rx rlogin

4. Set up your /etc/clusters file:

~/bin <11>$ cat /etc/clusters
tst tsteast tstwest
prod prodeast prodwest

5. Invoke the Cluster Console using a command similar to the following. Using -x makes the sessions start up faster by disabling X11 forwarding.

Warning: Doing this will make all rlogin invocations use SSH, but that is a desired side effect.

/opt/SUNWcluster/bin/crlogin -x -l username clustername
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