February 2018
Beginner
290 pages
7h 28m
English
Content preview from Hybrid Cloud for Architects
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DNS service
The DNS service also plays a key role in sending traffic to the appropriate servers. This is normally achieved by using the global traffic manager or a global load balancer, which basically combines the concepts of a load balancer and DNS server.
Let's take a quick look at how it works. The global load balancer gets a DNS query for a server record it manages. It then takes a look at the load and availability of the server and then sends the DNS response appropriately.
One thing to remember is that the DNS is only queried (after querying it once) when the Time to Live (TTL) expires, hence in order to ensure that the DNS server is queried, we need to lower the TTL. However, as a consequence, the cache is not used for the DNS and ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.