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--- chrooted_dns [2007/01/30 14:31]
adam Codified
+++ 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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