Changes

* [https://en.wikipedia.org/wiki/Domain_Name_System#Address_resolution_mechanism Address resolution mechanism]

* [https://en.wikipedia.org/wiki/Reverse_DNS_lookup Reverse DNS lookups]

=== Current Configuration ===

After you have completed this lab, your '''vm1''' will be running a full-featured DNS server (which is how you're going to get the '''yoursenecaid.org''' domain without paying for it). Unfortunately, you will be the only one using your DNS server so no-one else will be able to resolve hosts under '''yoursenecaid.org'''

=== How DNS resolution works ===

We will review in class how the Domain Name Service works. You should also read in your own time the [https://en.wikipedia.org/wiki/Domain_Name_System#Address_resolution_mechanism Address resolution mechanism] section (including the '''Recursive''' and '''caching name server''' subsections) on '''Wikipedia for an overview of a DNS query'''. The diagram shown in the WIKI is also quite simple and easy to understand. Domain Name Service is a LARGE topic but this lab provides the basic principles and essentials for this course and DNS set-up for other courses.

= INVESTIGATION 1: CONFIGURING THE DNS SERVER =

'''Record steps, commands, and your observations in INVESTIGATION 1 in your OPS335 lab log-book'''

= INVESTIGATION 2: CONFIGURING THE DNS CLIENT =

'''Record steps, commands, and your observations in INVESTIGATION 2 in your OPS335 lab log-book'''

= INVESTIGATION 3: CONFIGURING THE DNS SERVER FOR REVERSE LOOKUPS =