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Message-ID: <20060117230033.GA8305@openwall.com>
Date: Wed, 18 Jan 2006 02:00:33 +0300
From: Solar Designer <solar@...nwall.com>
To: popa3d-users@...ts.openwall.com
Subject: Re: pop-before-smtp on Linux...
John,
On Mon, Jan 16, 2006 at 12:05:38PM -0500, John Von Essen wrote:
> For years, I have been using the pop-before-smtp patch for popa3d on
> FreeBSD.
>
> I have a linux server (Redhat Enterprise 4.0) now that I wish to do this on.
> I have been unable to compile either 0.6.4 or 1.0 with the pop-before-smtp
> patch. Here are the errors I get:
>
> gcc -Wall -O2 -fomit-frame-pointer -DPOPB4SMTP -DVALIDTIME=600 -c pop_db.c
> pop_db.c: In function `write_db_entry':
> pop_db.c:60: warning: implicit declaration of function `dbopen'
[...]
You might want to use whoson (and the corresponding patch to popa3d)
instead of this POP-before-SMTP patch. whoson is known to work well
and it has no dependency on Berkeley DB.
On Linux, you need to configure whoson to use a TCP socket (not a Unix
domain socket), but bind it to "localhost" for security. The
/etc/whoson.conf entries would be:
client tcp port=9876
address=127.0.0.1
server tcp
port=9876
listenq=5
keepalive=150
allow=127.0.0.1/32
server global ttl=660 # 11 minutes
chroot=/var/empty # chdir and chroot here
group=whoson # change group id and
user=whoson # user id after bind()ing
cachesize=100000 # max. number of entries to keep
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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