[newbie] Security check.

[=?x-unknown?q?Pe=F1a_Arellano_Fabian_Erasmo?=]

        Hi,

        The system sent me a message containing the following warning:

        Security Warning: the md5 checksum for one of your SUID files has changed,
        maybe an intruder modified one of these suid binary in order to put in a
        backdoor...
                - Checksum changed files : /usr/bin/lppasswd
                - Checksum changed files : /usr/bin/ssh                          


        About the ssh, I guess the best would be to install it again. But
what to do with the lppasswd file?
        Thanks to all.


        Fabian.