July 2017
Intermediate to advanced
402 pages
9h 38m
English
Content preview from Effective DevOps with AWS
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Application Load Balancer
While ELB and ALB are both load balancers, they function very differently. The main difference between the two services is that the ELB service works at the Layer 4 (transport) of the Open Systems Interconnection (OSI) model and the ALB is a Layer 7 (application) load balancer.
This means that the ELB service can only speak and understand up to the TCP/IP layer. When you configure an ELB, you configure the load balancer port on one side and the instances addresses and ports on the other.
Because the ALB service is a Layer 7 load balancer, in addition to what the ELB can do, it also understands application protocols such as HTTP. This allows for a more complex and granular configuration. A very common use case when ...
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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.