[Dnsmasq-discuss] 2 dnsmasq instances

[David Sankel]

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Hello All,

I've been able to run a duel dnsmasq server configuration a while ago.
That computer crashed and I'm rebuilding it. I don't recall what
dnsmasq version I was using then, but I get the following error
message with both 2.20 and 2.22. It happens when the second instance
is started.

failed to bind listening socket: Address already in use.

Do I need to do something else to my configuration files to get it
working with the latest version?

David J. Sankel

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# Configuration file for dnsmasq.
#
# Format is one option per line, legal options are the same
# as the long options legal on the command line. See
# "/usr/sbin/dnsmasq --help" or "man 8 dnsmasq" for details.
pid-file=/var/run/dnsmasq-freenet.pid
dhcp-leasefile=/var/state/dnsmasq/dnsmasq-freenet.leases

domain-needed
bogus-priv
filterwin2k

interface=eth0.3

bind-interfaces 

no-hosts
addn-hosts=/etc/hosts-freenet
expand-hosts
domain=freenet
  
dhcp-range=freenet,192.168.1.50,192.168.1.150,12h
dhcp-host=00:0d:54:a0:b1:bb,accesspoint1,192.168.1.3,12h
address=/accesspoint2.freenet/192.168.1.4

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# Configuration file for dnsmasq.
#
# Format is one option per line, legal options are the same
# as the long options legal on the command line. See
# "/usr/sbin/dnsmasq --help" or "man 8 dnsmasq" for details.
pid-file=/var/run/dnsmasq-offices.pid
dhcp-leasefile=/var/state/dnsmasq/dnsmasq-offices.leases

domain-needed
bogus-priv
filterwin2k

interface=eth0.2

bind-interfaces 

no-hosts
addn-hosts=/etc/hosts-offices
expand-hosts
domain=offices
  
dhcp-range=192.168.10.50,192.168.10.70,12h

dhcp-host=00:0f:1f:40:f1:1a,dellswitch,192.168.10.5,12h
dhcp-host=00:0b:cd:cf:a0:2a,central,192.168.10.1,12h
dhcp-host=00:00:85:0a:ea:23,ir2200,192.168.10.40,12h

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#!/bin/sh
# Start/stop/restart dnsmasq (a small DNS/DHCP server):

# Start dnsmasq:
dnsmasq_start() {
  if [ -x /usr/sbin/dnsmasq ]; then
    echo "Starting dnsmasq:  /usr/sbin/dnsmasq"
    /usr/sbin/dnsmasq --conf-file /etc/dnsmasq-offices.conf
    /usr/sbin/dnsmasq --conf-file /etc/dnsmasq-freenet.conf
  fi
}

# Stop dnsmasq:
dnsmasq_stop() {
  killall dnsmasq
}

# Restart dnsmasq:
dnsmasq_restart() {
  dnsmasq_stop
  sleep 1
  dnsmasq_start
}

case "$1" in
'start')
  dnsmasq_start
  ;;
'stop')
  dnsmasq_stop
  ;;
'restart')
  dnsmasq_restart
  ;;
*)
  echo "usage rc.dnsmasq: start|stop|restart"
esac

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#!/bin/sh
# DJS: this is based on something from radom.org

start()
{
	### lo ###
	ip addr add 127.0.0.1/8 brd 127.255.255.255 dev lo
	ip link set lo up

	### eth0 and VLANS ###
	ip link set eth0 up 

	baspcfg addteam 0 0 myteam
	baspcfg bind 0 0 eth0
	baspcfg addva 0 2 eth0.2
	baspcfg addva 0 3 eth0.3
	baspcfg addva 0 4 eth0.4


	#vconfig add eth0 2
	#vconfig add eth0 3
	#vconfig add eth0 4

	#office network
	ip address add \
	   dev eth0.2 \
	   local 192.168.10.250/24 \
	   broadcast +
	ip link set eth0.2 up 

	#freenet network
	ip address add \
	   dev eth0.3 \
	   local 192.168.1.2/24 \
	   broadcast +
	ip link set eth0.3 up 

	#internet
	ip address add \
	   dev eth0.4 \
	   local 192.168.0.2/24 \
	   broadcast +
	ip link set eth0.4 up 

	## routes ##
	ip route add 127.0.0.0/8 dev lo
	ip route add default via 192.168.0.1 dev eth0.4
}

stop()
{
        ip link set lo down
	    ip link set eth0.4 down
	    ip link set eth0.3 down
	    ip link set eth0.2 down
        ip link set eth0 down

        ip addr flush lo
        ip addr flush eth0.4
        ip addr flush eth0.3
        ip addr flush eth0.2
        
        baspcfg delva 0 2
        baspcfg delva 0 3
        baspcfg delva 0 4
        baspcfg unbind 0 eth0
        baspcfg delteam 0

        #vconfig rem eth0.4
        #vconfig rem eth0.3
        #vconfig rem eth0.2
}

status()
{
        ip addr show
        echo ""
        echo ""
        ip route show
}

case "$1" in
        start)
                start
                ;;
        stop)
                stop
                ;;
        status)
                status
                ;;
        restart)
                stop
                start
                ;;
        *)
                echo "usage: $0 ( start | stop | status | restart )"
                exit 1
esac

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