$NetBSD$

--- mxallowd.1.orig	2008-06-28 04:04:20.000000000 +0200
+++ mxallowd.1
@@ -8,7 +8,7 @@
 .fi
 ..
 
-.TH mxallowd 1 "JANUARY 2009" Linux "User Manuals"
+.TH mxallowd 1 "JANUARY 2009" NetBSD "User Manuals"
 
 .SH NAME
 mxallowd \- dynamically whitelist your Mail eXchanger
@@ -31,13 +31,11 @@ mxallowd \- dynamically whitelist your M
 .IR fake-mailserver \|
 .RB \|\-r
 .IR real-mailserver \|
-.RB \|\-n
-.IR queue-num \|
 
 .SH DESCRIPTION
 
 .B mxallowd
-is a daemon which uses libnetfilter_queue (on Linux) or pf and pflog (on BSD) to allow (or deny) connections to a mailserver (or similar application) if the remote host hasn't connected to a fake daemon before.
+is a daemon which uses or pf and pflog to allow (or deny) connections to a mailserver (or similar application) if the remote host hasn't connected to a fake daemon before.
 
 This is an improved version of the so-called nolisting (see http://www.nolisting.org/). The assumption is that spammers are not using RFC 2821-compatible SMTP-clients and are sending fire-and-forget spam (directly to the first or second MX-entry without retrying on error). This direct access is blocked with mxallowd, you'll only get a connection if you retry.
 
@@ -77,10 +75,6 @@ Specify which IP-address the real mailse
 Do not fork into background, stay on console
 
 .TP
-.B \-n, \-\-queue\-num (only available when compiled for netfilter_queue)
-Specify the queue number which will be used for the netfilter_queue-link. This has to be the same which is specified in the iptables-rule and it has to be specified, there is no default.
-
-.TP
 .B \-p, \-\-pflog\-interface (only available when compiled for pf)
 Specify the pflog(4) interface which you configured in pf(4). The default is pflog0. Also see the pcap-filter-option if you use an interface which does not only get smtp-traffic.
 
@@ -92,32 +86,20 @@ Specify the filter for pcap. The default
 .TP
 .B /etc/mxallowd.conf
 System-wide configuration file. Use the long options without the beginning two dashes. For example:
-.Vb 6
+.Vb 5
 \&
 \&	stdout
 \&	fake-mailserver 192.168.1.3
 \&	fake-mailserver 192.168.1.4
 \&	real-mailserver 192.168.1.5
-\&	queue-num 23
 .Ve
 
-.SH EXAMPLES FOR NETFILTER
-The machine has two IP-addresses. The mailserver only listens on 192.168.1.4, the nameserver returns the mx-records mx1.domain.com (192.168.1.3) with priority 5 and mx2.domain.com (192.168.1.4) with priority 10.
-.PP
-.Vb 3
-\&# modprobe nfnetlink_queue
-\&# iptables -A INPUT -p tcp --dport 25 -m state --state NEW -j NFQUEUE --queue-num 23
-\&# mxallowd -s -F -f 192.168.1.3 -r 192.168.1.4 -n 23
-.Ve
-
-Then open a separate terminal and connect via telnet on your real mailserver. You'll see the connection attempt being dropped. Now connect to the fake mailserver and watch mxallowd's output. Afterwards, connect to the real mailserver to verify your mailserver is still working.
-
-.SH EXAMPLES FOR PF
+.SH EXAMPLES
 The machine has two IP-addresses. The mailserver only listens on 192.168.1.4, the nameserver returns the mx-records mx1.domain.com (192.168.1.3) with priority 5 and mx2.domain.com (192.168.1.4) with priority 10.
 
 Create a pf.conf like this:
 .PP
-.Vb 11
+.Vb 16
 \&	table <mx-white> persist
 \&
 \&	real_mailserver="192.168.1.4"
@@ -126,10 +108,14 @@ Create a pf.conf like this:
 \&	real_mailserver6="2001:dead:beef::1"
 \&	fake_mailserver6="2001:dead:beef::2"
 \&
-\&	pass in quick log on fxp0 proto tcp from <mx-white> to $real_mailserver port smtp
-\&	pass in quick log on fxp0 inet6 proto tcp from <mx-white> to $real_mailserver6 port smtp
-\&	block in log on fxp0 proto tcp to { $fake_mailserver $real_mailserver } port smtp
-\&	block in log on fxp0 inet6 proto tcp to { $fake_mailserver6 $real_mailserver6 } port smtp
+\&	pass in quick log on fxp0 proto tcp from <mx-white> \\
+\&	to $real_mailserver port smtp
+\&	pass in quick log on fxp0 inet6 proto tcp from <mx-white> \\
+\&	to $real_mailserver6 port smtp
+\&	block in log on fxp0 proto tcp \\
+\&	to { $fake_mailserver $real_mailserver } port smtp
+\&	block in log on fxp0 inet6 proto tcp \\
+\&	to { $fake_mailserver6 $real_mailserver6 } port smtp
 .Ve
 
 Afterwards, load it and start mxallowd using the following commands:
@@ -141,10 +127,7 @@ Afterwards, load it and start mxallowd u
 
 Then open a separate terminal and connect via telnet on your real mailserver. You'll see the connection attempt being dropped. Now connect to the fake mailserver and watch mxallowd's output. Afterwards, connect to the real mailserver to verify your mailserver is still working.
 
-The ruleset for pf is actually longer because pf does more than netfilter on linux -- netfilter passes the packets and lets mxallowd decide whether to drop/accept whilst pf blocks/passes before even "passing" to mxallowd.
-
 .SH SEE ALSO
-.BR iptables (8),
 .BR pf (4),
 .BR pflog (4),
 .BR tcpdump (8)
