DNS Revisited

DNS

We have configured simple DNS to answer queries about our domain.

  • How does dns work again?
  • As of now, our DNS will not do lookups for us.

Steps to configure

  • install bind9 as necessary
  • modify /etc/bind/named.conf.options to allow hosts to query us.
  • configure for query logging in the same file
  • Restart bind9
  • Test!
  • Repeat for each lookup server

Dig it!

  • Dig from localhost for non-authoritative data.
  • Dig from your other network systems for non-authoritative data.
  • Dig from outside your network for non-authoritative data.
  • Dig from outside your network for authoritative data.