Multiple Named Daemons on one machine

[Ashwin Kotian]

I'm trying to setup a Split-DNS on a single machine having one network
interface. I've created an IP alias for the network interface & have
created the following directory structure:
//var/named/int//     Internal DNS server file directory
//var/named/ext//     External DNS server file directory

I've setup the respective zone files & named.conf file in each
directory.

I can run multiple daemons of named from command line as follows:

/usr/sbin/named -u named -c /var/named/int/named.conf -t
/var/named/int
/usr/sbin/named -u named -c /var/named/ext/named.conf -t
/var/named/ext
But I'm unable to start these daemons from the startup script which is
as follows:
--------------------------------------------------------------------------------
#!/bin/sh
#
# named           This shell script takes care of starting and
stopping
#                 named (BIND DNS server).
# ----------------------------------------------------------------------------
# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -f /etc/sysconfig/named ] && . /etc/sysconfig/named

[ -f /usr/sbin/named ] || exit 0
[ -f /usr/sbin/named ] || exit 0

[ -f /var/named/int/named.conf ] || exit 0
[ -f /var/named/ext/named.conf ] || exit 0

RETVAL=0

# See how we were called.
case "$1" in

       start)
            # Start daemons.
            echo -n "Starting named-int: "

            #Bind9 - Use this setup if you are using Bind9
            #
            daemon /usr/sbin/named -u named -c
/var/named/int/named.conf -t /var/named/int

            RETVAL=$?
            [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named-int

            sleep 5

            echo -e "\r"
            echo -n "Starting named-ext: "

 
            #Bind9 - Use this setup if you are using Bind9
            #
            /usr/sbin/named -u named -c /var/named/ext/named.conf -t
/var/named/ext

            RETVAL=$?
            [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named-ext
            echo -e "\r"
         ;;

        start-int)
            # Start daemons.
            echo -n "Starting named-int: "

            #Bind9 - Use this setup if you are using Bind9
            #
            /usr/sbin/named -u named -c /var/named/int/named.conf -t
/var/named/int

            RETVAL=$?
            [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named-int
            echo -e "\r"
        ;;

        start-ext)
            echo -n "Starting named-ext: "

            #Bind9 - Use this setup if you are using Bind9
            #
            /usr/sbin/named -u named -c /var/named/ext/named.conf -t
/var/named/ext

            RETVAL=$?
            [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named-ext
            echo -e "\r"
        ;;

        stop)
          # Stop daemons.       
                   echo -n "Shutting down named: "
           killproc named
           RETVAL=$?
           [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/named-int && rm
-f /var/lock/subsys/named-ext
           echo -e "\r"
        ;;

        stop-int)
            # Stop INT daemons.
            echo -n "Shutting down named-int: "
            kill `ps ax | grep /usr/sbin/named | grep -v -e grep | awk
'{print $1}'`
            RETVAL=$?
            [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/named-int
            echo -e "\r"
        ;;

        stop-ext)
            # Stop EXT daemons.
            echo -n "Shutting down named-ext: "
            kill `ps ax | grep /usr/sbin/named | grep -v -e grep | awk
'{print $1}'`
            RETVAL=$?
            [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/named-ext
            echo -e "\r"
        ;;

        status)
          /usr/sbin/rndc status
          exit $?
        ;;


        restart)
           $0 stop
           $0 start
        ;;


        reload)
           /usr/sbin/rndc reload
           exit $?
        ;; 


        probe)
           # named knows how to reload intelligently; we don't want
linuxconf
           # to offer to restart every time
           /usr/sbin/rndc reload >/dev/null 2>&1 || echo start
           exit 0
        ;;

 
        *)
          echo "Usage: named
{start|start-int|start-ext|stop|stop-int|stop-ext|status|restart}"
        exit 1
esac
exit $RETVAL
--------------------------------------------------------------------------------

When I run this script, I get the following errors in the logs:

Apr 25 22:50:36 ABC /usr/sbin/named[3708]: starting BIND 9.1.0 -u
named -c /var/named/int/named.conf -t /var/named/int
Apr 25 22:50:36 ABC /usr/sbin/named[3708]: using 1 CPU
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: loading configuration from
'/var/named/int/named.conf'
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: /var/named/int/named.conf:
open: file not found
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: loading configuration: file
not found
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: exiting (due to fatal
error)
Apr 25 22:50:36 ABC /usr/sbin/named[3708]: starting BIND 9.1.0 -u
named -c /var/named/ext/named.conf -t /var/named/ext
Apr 25 22:50:36 ABC /usr/sbin/named[3708]: using 1 CPU
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: loading configuration from
'/var/named/ext/named.conf'
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: /var/named/ext/named.conf:
open: file not found
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: loading configuration: file
not found
Apr 25 22:50:36 ABC /usr/sbin/named[3711]: exiting (due to fatal
error)


--------------------------------------------------------------------------------Both
the files /var/named/int/named.conf & /var/named/ext/named.conf very
much exist.

Cannot figure out at all what's causing this problem ? 

Any idea/suggestions/solutions are very much appreciated.

Thanks,

Ashwin.