pam_unix: Document that MD5 password hash is used to store old passwords.

modules/pam_unix/pam_unix.8.xml: Document that the MD5 password hash is used
to store the old passwords when remember option is set.

diff --git a/modules/pam_unix/pam_unix.8.xml b/modules/pam_unix/pam_unix.8.xml
index 60d9097967d6c32edb3ee0cc37e6c1bfb2525236..1b318f113f0c88c89928d71281c4355fc739476d 100644 (file)
--- a/modules/pam_unix/pam_unix.8.xml
+++ b/modules/pam_unix/pam_unix.8.xml
@@ -247,6 +247,8 @@
             user are saved in <filename>/etc/security/opasswd</filename>
             in order to force password change history and keep the user
             from alternating between the same password too frequently.
+            The MD5 password hash algorithm is used for storing the
+            old passwords.
             Instead of this option the <command>pam_pwhistory</command>
             module should be used.
           </para>