boss i have linux ftp related problem tel me what to do!!! its urgent

[waqar junejo]

Hi,
I get the following Kerberos related error
when i do FTP from another machine(redhat AS 4)
to my machine(redhat 9.0).

How to solve this problem ?

Connected to 107.108.89.173.
220 localhost.localdomain FTP server (Version 5.60)
ready.
334 Using authentication type GSSAPI; ADAT must follow
GSSAPI accepted as authentication type
GSSAPI error major: Miscellaneous failure
GSSAPI error minor: No credentials cache found
GSSAPI error: initializing context
GSSAPI authentication failed
334 Using authentication type KERBEROS_V4; ADAT must
follow
KERBEROS_V4 accepted as authentication type
Kerberos V4 krb_mk_req failed: You have no tickets
cached
Name (107.108.89.173:chandrasekar): bye
530 Must perform authentication before identifying
USER.
Login failed.
Remote system type is UNIX.
Using binary mode to transfer files.

I don't know what is going on my ftp server if I try
to connect it shows that error.

Kindly anyone tell a soln,