I am using a computer with Linux RedHat 7.3 and another computer with Unix Solaris 8 and I need to run this command from the linux without being asked for a password:

rsh unixcomputername ls

I can actually log in without a password if I just run

rsh unixcomputername

but if I try to execute some command after that I get this annoying message that says:

poll: protocol failure in circuit setup

My .rhosts file and /etc/hosts.equiv on the unix machine are set correctly but I don't have a clue why this is not working.

Any idea?

Thanks