Having understood the basics of networking, let's take a look at the second important underpinning service, the DNS or the Domain Name System. In the case of the hybrid cloud, it is instrumental to redirect traffic appropriately to the servers from the user machines (or even between the servers).
Before we get into how this works with hybrids, let's quickly understand the basics of the DNS query and how we can manipulate it into sending the traffic to different places.
The DNS system, on the most simplest levels, consists of a database that contains different kinds of associations. These associations are called DNS records.
There are several types of DNS records, some of which are mentioned in the following (there are several others out there, but the list should be enough to help us understand):
- A record: Association between host name and IPv4 address
- MX record: Association between domain name and the IP address of its SMTP server
- CNAME record: Association...