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Sender: =?UTF-8?Q?Timo_Ter=C3=A4s?= <timo.teras@gmail.com>
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Date: Sat, 14 Nov 2009 10:24:21 +0200
From: =?ISO-8859-1?Q?Timo_Ter=E4s?= <timo.teras@iki.fi>
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To: MarkSeymour@GuildAssociates.com
CC: alpine-devel@lists.alpinelinux.org
Subject: Re: [alpine-devel]  how do I get axfrdns (djbdns) going in Alpine?
References: <9BDC6D38983C45A6A0710925FF6BDE50@markseymour>
In-Reply-To: <9BDC6D38983C45A6A0710925FF6BDE50@markseymour>
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MarkSeymour@GuildAssociates.com wrote:
> Hello alpine-devel's, and thank you for Alpine Linux!  I am a longtime 
> user of LEAF and its predecessor LRP, so I was excited to find Alpine, 
> as I've wanted to get away from floppy disk storage of configs for a 
> long time now.
>  
> I have Shorewall configured to my liking, as well as Tinydns, but now I 
> want to be able to provide axfr responses to non - djb slave dns 
> servers, and I would like to log queries.  I have not found any 
> documentation on how to do this with Alpine.  Any help would be greatly 
> appreciated.
>  
> I have added the package djbdns-1.05-r32, which contains axfrdns, but I 
> don't know where to go from there.  Do I follow the Bernstein 
> instructions at http://cr.yp.to/djbdns/axfrdns-conf.html , including 
> creating 'acct' and 'logacct'?  I assume not, since I don't see a 
> daemontools package available to give me multilog.  I'd be happy to rtfm 
> if I could find the fm ;)
>  
> Alternatively, I'll consider using BIND since you have it available....

I have axfrdns running on an Alpine 1.8 based box. It uses tcpserver from
ucspi-tcp package. I attached the init.d script I'm using. Something like
this should be added to djbdns package.

- Timo

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#!/sbin/runscript
# control an instance of axfrdns
# written for alpine linux - NBA May 2009


# -- Statrup variables 
UID=$( grep tinydns /etc/passwd | cut -f3 -d: )
GID=$( grep tinydns /etc/group | cut -f3 -d: )
PORT=${PORT:-53}
HOST=${HOST:$(hostname)}
DAEMON=/usr/bin/axfrdns
SUPERSERVER=/usr/bin/tcpserver

IFACE="${SVCNAME#*.}"
if [ -n "$IFACE" ] && [ "${SVCNAME}" != "tinydns" ]; then
	ROOT=${ROOT:-/var/cache/tinydns.$IFACE}
	VARRUN=${VARRUN:-/var/run/axfrdns.$IFACE}
else
	ROOT=${ROOT:-/var/cache/tinydns}
	VARRUN=${VARRUN:-/var/run/axfrdns}
fi


#-----------------------------------------------------------------
# Main program
start() {

	ebegin "Starting axfrdns"
	if [ -z "$UID" ] || [ -z "$GID" ]; then
		eend 1 "tinydns user or group missing"
		return 1
	fi
	
	# if its already running, just report it is
	if [ -e ${VARRUN}.pid ] && [ -d /proc/$( cat ${VARRUN}.pid ) ]; then
		eend 0
		return 0
	fi

	if [ -z "$IP" ]; then
		eend 1 "IP is not specified in /etc/conf.d/$SVCNAME"
		return 1
	fi
	
	(
		export UID GID ROOT AXFR
		echo $SUPERSERVER -HR -l $HOST $IP $PORT $DAEMON
		$SUPERSERVER -HR -l $HOST $IP $PORT $DAEMON >/dev/null 2>/dev/null &
		pid=$!
		sleep 1
		# Check if its still running
		if ! [ -d /proc/$pid ]; then
		#	rm ${VARRUN}.pid
		#	$SUPERSERVER -HR -l $HOST $IP $PORT $DAEMON >/dev/null 2>/dev/null &
			return 1
		fi
		echo $pid > ${VARRUN}.pid
	)
	eend $?
	return 0
}

stop() {
	ebegin "Stopping axfrdns"
	start-stop-daemon --stop -m --pidfile ${VARRUN}.pid  --oknodo \
		--exec $SUPERSERVER && rm ${VARRUN}.pid
	eend $?
}


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