add episode 127 transcript

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Transcript

This change includes the transcript for the podcast episode, created by Podwhisperer.
The summary below is generated by Episoder.

Episode Summary

In this episode, we provide an overview of load balancers, explaining how they distribute traffic across multiple servers and provide high availability. We discuss layer 4 and layer 7 load balancers, detailing their pros and cons. We then focus on AWS load balancers, covering network load balancers and application load balancers in depth, including their features, use cases, and pricing models. We conclude by mentioning some alternatives to AWS load balancers.

Suggested Chapters

00:00 Introduction and overview of load balancers
00:41 Example scenario and problems with using a single server
01:25 Benefits of supporting multiple application instances
02:00 Challenges of managing upgrades and deployments with a single server
02:12 Introduction to load balancers as a solution
02:26 Load balancers existed before cloud computing
02:52 Early load balancing software
03:09 Load balancers distribute traffic across backend servers
03:31 Overview of load balancer features
03:41 Load balancer feature: traffic distribution
03:54 Load balancer feature: algorithms for traffic distribution
03:59 Load balancer feature: health checks
04:12 Load balancer feature: TLS/SSL termination
04:48 Load balancer features: DDoS protection and firewall
05:12 Introduction to the OSI networking model
05:31 Overview of the seven OSI layers
05:58 Focusing on layers 4 and 7 for load balancers
08:02 Layer 4 vs layer 7 load balancers
08:12 Layer 4 load balancers operate at the transport layer
08:36 Pros and cons of layer 4 load balancers
09:14 Layer 7 load balancers operate at the application layer
10:54 Pros and cons of layer 7 load balancers
13:05 AWS load balancer types
13:22 Using third-party load balancers on AWS
13:34 AWS managed load balancer options
14:20 Network load balancers overview
14:51 When to use network load balancers
15:16 Application load balancer overview
16:26 Application load balancer features
17:36 Architecture with load balancers, listeners, target groups
19:48 Load balancer target types
20:16 Lambda functions as targets
20:59 Load balancer pricing overview
21:54 Load balancer capacity units
22:40 Alternatives to AWS load balancers

Suggested Tags

AWS, EC2, ELB, NLB, ALB, Load Balancer, High Availability, Scalability, Security, SSL, HTTPS, TLS, HTTP, TCP, UDP, Networking, OSI Model, Lambda, API Gateway, Target Group, Listener, Health Check, Pricing, Cost Optimization