[CentOS] rsh problems in CentOS 5.2 (was "cvs command failure on 5.2")

On Mon, Jul 07, 2008 at 01:45:25PM -0700, MHR wrote:

> [mrichter at sushi lane]$ rsh khan ls
> poll: protocol failure in circuit setup

Are you sure there are no firewalls in place that could be blocking access?
Note that "rsh machine" really calls "rlogin machine" and so talks on
a different port (port 513) whereas "rsh machine command" uses port 514.

You should tcpdump the traffic while trying to do an rsh to see what is
going on.

-- 

rgds
Stephen