Authentication failed [Caused by: Unknown CA]

This post is in reference to the following Globus Error:

Authentication failed [Caused by: Failure unspecified at GSS-API level [Caused by: Unknown CA]]

This error is generated when the client does not trust the server CA. This error can be corrected by adding the server CA file (.0) to the Globus client's .globus\certificates directory.

This error is also generated when the .0 file is corrupted. You must verify that the md5checksum is correct on both the remote server and local Globus node. Please see the follow link for an example of this procedure.

http://www.globus.org/mail_archive/gt-user/2007/09/msg00103.html