![]() ![]() You can even configure BIND9 to be a Caching and Primary Master DNS server simultaneously, a Caching and a Secondary Master server or even a Caching, Primary Master and Secondary Master server. If you intend to serve a registered domain name they ensure that your DNS zone is still available even if your primary server is not online. ![]() Secondary servers are recommended in larger setups. By caching DNS queries, you will reduce bandwidth and (more importantly) latency.īIND9 can be used to serve DNS records (groups of records are referred to as zones) for a registered domain name or an imaginary one (but only if used on a restricted network).Ī secondary master DNS server is used to complement a primary master DNS server by serving a copy of the zone(s) configured on the primary server. This can be useful for a slow internet connection. In this configuration BIND9 will find the answer to name queries and remember the answer for the next query. Also, the BIND9 Documentation can be found in the bind9-doc package.īIND9 can provide many different DNS services. See InstallingSoftware for details on using package managers.Ī very useful package for testing and troubleshooting DNS issues is the dnsutils package. To install the server simply install the bind9 package. No additional repository needs to be enabled for BIND9.īefore we begin, you should be familiar with RootSudo. This guide is aimed at people looking to learn how to configure and maintain a DNS server, such as for a network (caching name server) or to serve DNS zones for a domain name.īIND9 is available in the Main repository. Ubuntu ships with BIND (Berkley Internet Naming Daemon), the most widely deployed DNS server. Computers that run DNS are called name servers. In this way, DNS alleviates the need to remember IP addresses. I modified the example file to give box an address of 192.168.1.21).ĭomain Name Service (DNS) is an Internet service that maps IP addresses and fully qualified domain names (FQDN) to one another. Here it changes to box (I believe the author was simply trying to show that additional computers would be listed, but failed to use a different address for box. in all other places, the document uses the machine name example ns. I'm mentioning this to help anyone to avoid the unnecessary time trying to resolve their DNS, owing the the inconsistencies in this document, particularly if you're new to DNS configuration. Note: There are some issues with this Howto, too numerable to fix quickly, and it requires bringing up to standard.
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