Install BIND9 in Ubuntu (Breezy)

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[edit] Chrooted DNS Server Installation

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Install bind and related dns tools:

  apt-get install bind9 dnsutils

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"

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"

Restart the logging daemon:

  /etc/init.d/sysklogd restart

Start up BIND, and check /var/log/syslog for any errors:

 /etc/init.d/bind9 start