ARCHIVED: Using myproxy-logon, why do I receive a "PAM authentication failed: Permission denied" error?

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Using myproxy-logon to connect to a Extreme Science and Engineering Discovery Environment (XSEDE) resource, you may get the error, "PAM authentication failed: Permission denied".

This most likely means you entered an incorrect XSEDE password. To test the validity of your password:

Check whether or not you can log into the XSEDE User Portal.
Try running kinit from the command line:
```
  kinit username@TERAGRID.ORG
```

The "Permission denied" error is returned instead of a more user friendly message (e.g., "You've entered an incorrect password".) due to inflexibility in the PAM authentication program.

This document was developed with support from National Science Foundation (NSF) grants 1053575 and 1548562. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.