samba - May 2004 - KERBEROS_V4 rejected as an authentication type

HI,

  ok this is what the error is when i try to use FTP
to my linux box. before i configured kerberos this
error didnt come up.

  i havent touched the pam.d( i have no plans of doing
so.)

i havent even touched the nsswitch.conf.

i just edited the krb5.conf file. and well the
smb.conf

one thing more. i thought i was using kerberos Version
5 rather V 4

but down the error uses V4. Now does it mean VERSION 4
OR V( The roman 5) and what is the 4 for then?

[root@niit125 root]# ftp localhost
Connected to localhost.localdomain.
220 (vsFTPd 1.1.3)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (localhost:root):


====
  Sahibzada Junaid Noor  
  Ph   #  (+92) (051) 5950 940
  Cell #   (+92) (0333) 5223586
  Qazi plaza,Third Floor,Commerical Market,Chaklala Scheme 3,
  Rawalpindi
  Islamic Republic of Pakistan 






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