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75a4a592e5
Mon Apr 25 13:37:00 UTC 2011 Slackware 13.37 x86_64 stable is released! Thanks to everyone who pitched in on this release: the Slackware team, the folks producing upstream code, and linuxquestions.org for providing a great forum for collaboration and testing. The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. Please consider supporting the Slackware project by picking up a copy from store.slackware.com. We're taking pre-orders now, and offer a discount if you sign up for a subscription. As always, thanks to the Slackware community for testing, suggestions, and feedback. :-) Have fun!
112 lines
3.3 KiB
Bash
112 lines
3.3 KiB
Bash
#!/bin/sh
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# Start/stop/restart the BIND name server daemon (named).
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# Start bind. In the past it was more secure to run BIND as a non-root
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# user (for example, with '-u daemon'), but the modern version of BIND
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# knows how to use the kernel's capability mechanism to drop all root
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# privileges except the ability to bind() to a privileged port and set
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# process resource limits, so -u should not be needed. If you wish to
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# use it anyway, chown the /var/run/named and /var/named directories to
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# the non-root user. The command options can be set like this in
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# /etc/default/named :
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# NAMED_OPTIONS="-u daemon"
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# So you will not have to edit this script.
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# You might also consider running BIND in a "chroot jail",
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# a discussion of which may be found in
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# /usr/doc/Linux-HOWTOs/Chroot-BIND-HOWTO.
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# One last note: rndc has a lot of other nice features that it is not
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# within the scope of this start/stop/restart script to support.
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# For more details, see "man rndc" or just type "rndc" to see the options.
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# Load command defaults:
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if [ -f /etc/default/named ] ; then . /etc/default/named ; fi
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if [ -f /etc/default/rndc ] ; then . /etc/default/rndc ; fi
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# Sanity check. If /usr/sbin/named is missing then it
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# doesn't make much sense to try to run this script:
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if [ ! -x /usr/sbin/named ]; then
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echo "/etc/rc.d/rc.bind: no /usr/sbin/named found (or not executable); cannot start."
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exit 1
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fi
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# Start BIND. As many times as you like. ;-)
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# Seriously, don't run "rc.bind start" if BIND is already
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# running or you'll get more than one copy running.
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bind_start() {
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if [ -x /usr/sbin/named ]; then
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echo "Starting BIND: /usr/sbin/named $NAMED_OPTIONS"
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/usr/sbin/named $NAMED_OPTIONS
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sleep 1
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fi
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if ! ps axc | grep -q named ; then
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echo "WARNING: named did not start."
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echo "Attempting to start named again: /usr/sbin/named $NAMED_OPTIONS"
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/usr/sbin/named $NAMED_OPTIONS
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sleep 1
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if ps axc | grep -q named ; then
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echo "SUCCESS: named started."
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else
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echo "FAILED: Sorry, a second attempt to start named has also failed."
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echo "There may be a configuration error that needs fixing. Good luck!"
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fi
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fi
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}
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# Stop all running copies of BIND (/usr/sbin/named):
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bind_stop() {
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echo "Stopping BIND: /usr/sbin/rndc $RDNC_OPTIONS stop"
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/usr/sbin/rndc $RDNC_OPTIONS stop
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# A problem with using "/usr/sbin/rndc stop" is that if you
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# managed to get multiple copies of named running it will
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# only stop one of them and then can't stop the others even
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# if you run it again. So, after doing things the nice way
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# we'll do them the old-fashioned way. If you don't like
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# it you can comment it out, but unless you have a lot of
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# other programs you run called "named" this is unlikely
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# to have any ill effects:
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sleep 1
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if ps axc | grep -q named ; then
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echo "Using "killall named" on additional BIND processes..."
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/bin/killall named 2> /dev/null
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fi
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}
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# Reload BIND:
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bind_reload() {
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/usr/sbin/rndc $RDNC_OPTIONS reload
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}
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# Restart BIND:
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bind_restart() {
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bind_stop
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bind_start
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}
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# Get BIND status:
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bind_status() {
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/usr/sbin/rndc $RDNC_OPTIONS status
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}
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case "$1" in
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'start')
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bind_start
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;;
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'stop')
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bind_stop
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;;
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'reload')
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bind_reload
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;;
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'restart')
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bind_restart
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;;
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'status')
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bind_status
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;;
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*)
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echo "usage $0 start|stop|reload|restart|status"
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esac
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