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--- chrooted_dns [2007/01/03 12:10]
adam created
+++ chrooted_dns [2016/11/25 22:38]
@@ Line 1: / Line 1: @@
-===== How to set up chrooted DNS on Ubuntu Dapper =====
-Taken from [[http://www.howtoforge.com/perfect_setup_ubuntu_6.06_p4]]
-Run
-apt-get install bind9
-For security reasons we want to run BIND chrooted so we have to do the following steps:
-/etc/init.d/bind9 stop
-Edit the file /etc/default/bind9 so that the daemon will run as the unprivileged user bind, chrooted to /var/lib/named. Modify the line: OPTIONS=" -u bind" so that it reads OPTIONS="-u bind -t /var/lib/named":
-vi /etc/default/bind9
-OPTIONS="-u bind -t /var/lib/named"
-# Set RESOLVCONF=no to not run resolvconf
-RESOLVCONF=yes
-Create the necessary directories under /var/lib:
-mkdir -p /var/lib/named/etc
-mkdir /var/lib/named/dev
-mkdir -p /var/lib/named/var/cache/bind
-mkdir -p /var/lib/named/var/run/bind/run
-Then move the config directory from /etc to /var/lib/named/etc:
-mv /etc/bind /var/lib/named/etc
-Create a symlink to the new config directory from the old location (to avoid problems when bind is upgraded in the future):
-ln -s /var/lib/named/etc/bind /etc/bind
-Make null and random devices, and fix permissions of the directories:
-mknod /var/lib/named/dev/null c 1 3
-mknod /var/lib/named/dev/random c 1 8
-chmod 666 /var/lib/named/dev/null /var/lib/named/dev/random
-chown -R bind:bind /var/lib/named/var/*
-chown -R bind:bind /var/lib/named/etc/bind
-We need to modify the startup script /etc/init.d/sysklogd of sysklogd so that we can still get important messages logged to the system logs. Modify the line: SYSLOGD="-u syslog" so that it reads: SYSLOGD="-u syslog -a /var/lib/named/dev/log":
-vi /etc/init.d/sysklogd
-[...]
-SYSLOGD="-u syslog -a /var/lib/named/dev/log"
-[...]
-Restart the logging daemon:
-/etc/init.d/sysklogd restart
-Start up BIND, and check /var/log/syslog for errors:
-/etc/init.d/bind9 start

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