Using openSSH3.4p1 on Solaris8 , we are having problems with 'ssh -n' returning 
status code 255 (from echo $?).  We have some proprietary code executing ssh - 
n, and trapping the return status and aborting the script.

We have seen the thread on MARC realting to a similar problem in OpenSSH2.9p1 
that says it will be fixed in the future. Our sysadmin guys are reluctant to 
apply the suggested 2.9 patch to 3.4.

The command that 'succeeds' but returns 255:

/usr/local/bin/ssh -q -o BatchMode=yes <remotenode> -n -l 
<remoteusr> /usr/bin/true

Without the -n, 'echo $?' returns 0