Blacklist & Whilelist IP's from server?

Lars E. Pettersson lars at
Thu Aug 4 20:46:02 UTC 2005

On 08/03/2005 05:38 PM, Alexander Dalloz wrote:
> For applications where PAM auth is involved I recommend to have a look
> at pam_abl: It is available through
> Fedora Extras ( 3 + 4).

I installed this package (thanks Alexander for making into extras) but
got into one problem, it blacklists all connections to my dovecot
imap-server, even the one that are successful.

The only thing I changed was the following:

--- system-auth.0       2005-07-29 11:56:39.000000000 +0200
+++ system-auth 2005-08-04 01:12:16.000000000 +0200
@@ -2,6 +2,7 @@
 # This file is auto-generated.
 # User changes will be destroyed the next time authconfig is run.
 auth        required
+auth   required        /lib/security/
 auth        sufficient likeauth nullok
 auth        required

My knowledge of PAM is not that great, so I am not sure how to find the
root of this error. The dovecot installation is more or less standard,
and I have not changed anything in the dovecot pam file.

Any ideas on where to start looking for errors? Tried googeling but did
not find anything useful...

Lars E. Pettersson <lars at>

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