#!/bin/bash # # named This shell script takes care of starting and stopping # named (BIND DNS server). # # chkconfig: - 13 87 # description: named (BIND) is a Domain Name Server (DNS) \ # that is used to resolve host names to IP addresses. # probe: true # Return codes # - script (all except status command) # - 2 invalid or excess argument(s) # - 3 unimplemented feature (for example, "reload") # - 4 user had insufficient privilege # - 5 program is not installed # - 6 program is not configured # - 7 program is not running # Source function library. . /etc/rc.d/init.d/functions [ -r /etc/sysconfig/named ] && . /etc/sysconfig/named RETVAL=0 # Don't kill named during clean-up NAMED_SHUTDOWN_TIMEOUT=${NAMED_SHUTDOWN_TIMEOUT:-100} if [ -n "$ROOTDIR" ]; then ROOTDIR=`echo $ROOTDIR | sed 's#//*#/#g;s#/$##'`; rdl=`/usr/bin/readlink $ROOTDIR`; if [ -n "$rdl" ]; then ROOTDIR="$rdl"; fi; fi # Run SDB backend? named='named' if `echo "$ENABLE_SDB" | grep -q ^[yY1].*`; then named='named_sdb'; fi; # Manage forwarders through D-BUS? for a in $OPTIONS; do if [ $a = "-D" ]; then dbusEnabled=1; fi; done if [ -z $dbusEnabled ] && [ -z "$DISABLE_NAMED_DBUS" ] ; then for l in 0 1 2 3 4 5 6; do if /sbin/chkconfig --level=$l NetworkManager >/dev/null 2>&1; then dbusEnabled=1; fi; done [ -z $NetworkManagerEnabled ] || OPTIONS="$OPTIONS -D"; fi; # Check if all what named needs running start() { # Source networking configuration. [ -r /etc/sysconfig/network ] && . /etc/sysconfig/network # Check that networking is up [ "${NETWORKING}" = "no" ] && exit 1 [ -x /usr/sbin/$named ] || exit 5 # Handle -c option previous_option='unspecified'; for a in $OPTIONS; do if [ $previous_option = '-c' ]; then named_conf=$a; fi; previous_option=$a; done; named_conf=${named_conf:-/etc/named.conf}; if [ ! -r $named_conf ]; then echo 'Cannot find configuration file. You could create it by system-config-bind' exit 6; fi; # all pre-start is done, lets start named echo -n $"Starting $named: " if [ -n "`/sbin/pidof -o %PPID $named`" ]; then echo -n $"$named: already running" failure echo exit 1; fi; ckcf_options='-z'; # enable named-checkzone for each zone (9.3.1+) ! if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then OPTIONS="${OPTIONS} -t ${ROOTDIR}" ckcf_options="$ckcf_options -t ${ROOTDIR}"; [ -s /etc/localtime ] && cp -fp /etc/localtime ${ROOTDIR}/etc/localtime; [ -d ${ROOTDIR}/proc ] || mkdir -p ${ROOTDIR}/proc; if ! egrep -q '^/proc[[:space:]]+'${ROOTDIR}'/proc' /proc/mounts; then mount --bind -n /proc ${ROOTDIR}/proc >/dev/null 2>&1; fi if [ ! -z $dbusEnabled ]; then if ! egrep -q '^/[^[:space:]]+[[:space:]]+'${ROOTDIR}'/var/run/dbus' /proc/mounts; then mkdir -p ${ROOTDIR}/var/run/dbus [ -d /var/run/dbus ] || mkdir -p /var/run/dbus; mount --bind -n /var/run/dbus ${ROOTDIR}/var/run/dbus > /dev/null 2>&1; fi; fi; fi RETVAL=0 # check if configuration is correct if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} >/dev/null 2>&1; then daemon /usr/sbin/$named -u named ${OPTIONS}; RETVAL=$? if [ $RETVAL -eq 0 ]; then rm -f /var/run/named.pid; rm -f /var/run/named_sdb.pid; ln -s $ROOTDIR/var/run/named/named.pid /var/run/named.pid; [ "$named" = "named_sdb" ] && ln -s $ROOTDIR/var/run/named/named.pid /var/run/named_sdb.pid; fi; if [ -n "`/sbin/pidof -o %PPID $named`" ]; then # Verify that named actually started (JM 2006-10-04) if [ ! -e $ROOTDIR/var/run/named/named.pid ]; then # If there is not a file containing the PID of the now running named daemon then create it (JM 2006-10-04) echo `/sbin/pidof -o %PPID $named` > $ROOTDIR/var/run/named/named.pid; [ "$named" = "named_sdb" ] && echo `/sbin/pidof -o %PPID $named` > $ROOTDIR/var/run/named/named_sdb.pid; fi; fi; else named_err="`/usr/sbin/named-checkconf $ckcf_options $named_conf 2>&1`"; echo echo "Error in named configuration:"; echo "$named_err"; failure echo [ -x /usr/bin/logger ] && echo "$named_err" | /usr/bin/logger -pdaemon.error -tnamed; exit 2; fi; if [ $RETVAL -eq 0 ]; then touch /var/lock/subsys/named; else exit 7; fi echo return 0; } stop() { # Stop daemons. echo -n $"Stopping $named: " [ -x /usr/sbin/rndc ] && /usr/sbin/rndc stop >/dev/null 2>&1; RETVAL=$? # is it still here? if /sbin/pidof -o %PPID $named >/dev/null; then timeout=0 while : ; do if /sbin/pidof -o %PPID $named >/dev/null; then if [ $timeout -ge $NAMED_SHUTDOWN_TIMEOUT ]; then killproc $named -TERM >/dev/null 2>&1 RETVAL=$? echo $"no response, killing with -TERM " break else sleep 2 && echo -n "." timeout=$((timeout+2)) fi; else break fi; done fi; # remove pid files if [ $RETVAL -eq 0 ]; then rm -f /var/lock/subsys/named rm -f /var/run/named.pid rm -f /var/run/named_sdb.pid fi; # unmount mounted filesystems/directories if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then if egrep -q '^/proc[[:space:]]+'${ROOTDIR}'/proc' /proc/mounts; then umount ${ROOTDIR}/proc >/dev/null 2>&1 fi if [ ! -z $dbusEnabled ]; then if egrep -q '^/[^[:space:]]+[[:space:]]+'${ROOTDIR}'/var/run/dbus' /proc/mounts; then umount ${ROOTDIR}/var/run/dbus > /dev/null 2>&1 fi; fi; fi; if [ $RETVAL -eq 0 ]; then success else failure RETVAL=1 fi; echo return $RETVAL } rhstatus() { [ -x /usr/sbin/rndc ] && /usr/sbin/rndc status; status /usr/bin/$named; return $? } restart() { stop sleep 2 start } reload() { echo -n $"Reloading $named: " p=`/sbin/pidof -o %PPID $named` RETVAL=$? if [ "$RETVAL" -eq 0 ]; then /usr/sbin/rndc reload >/dev/null 2>&1 || /bin/kill -HUP $p; RETVAL=$? fi [ "$RETVAL" -eq 0 ] && success $"$named reload" || failure $"$named reload" echo return $RETVAL } # See how we were called. case "$1" in start) start ;; stop) stop ;; status) rhstatus; RETVAL=$? ;; restart) restart ;; condrestart) if [ -e /var/lock/subsys/named ]; then restart; fi ;; reload) reload ;; *) echo $"Usage: $0 {start|stop|status|restart|condrestart|reload}" exit 3 esac exit $RETVAL