Error
krshd: Kerberos Authentication Failed.
rcp: Kerberos V4 rcp failed: rcmd protocol failure.

i think its due to the expiry of Kerberos ticket. then have to issue
kinit username, followed by password then type klist


basically, its just for some secure transfer. i found
[url]http://web.mit.edu/kerberos/www/#what_is[/url] for more info...