关于redhat ftp地一个很弱的问题

hnull

我登陆本机ftp的时候遇到下面的几行文字

334 Using authentication type GSSAPI ; ADAT must allow
GSSAPI accept as authentication type
GSSAPI error magor :Miscellaneous failure
GSSAPI error minor :No credentials cache found
GSSAPI error :initializing context
GSSAPI authentication failed
334 Using authentication type


然后不能用root用户登陆

我在ftpusers 里面已经改过了