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3	http://checkpasswd-pam.sourceforge.net/
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5
6checkpassword-pam is an implementation of checkpassword-compatible
7authentication program.
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9Checkpassword is described in <URL:http://cr.yp.to/checkpwd.html>
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12checkpassword-pam was written from scratch.  There are several older
13packages called checkpassword-pam, derived from DJB's checkpassword
14code.   This checkpassword-pam is more modern and
15administrator-friendly.
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18If you are using Linux-PAM, make sure it is more recent than 0.59.
19Incompatibilities are in the PAM conversation function (number of
20requests vs number of responses).  All modern Linux distribution use
21PAM newer than that.
22