4 days ago
Not related to VPC, but I'm a big fan of the author. Loved his book "Grokking Algorithms: An Illustrated Guide for Programmers and Other Curious People" when it came out a few years ago. If you know anyone struggling with common data structures and algorithms, this book can make it fun for them.
4 days ago
Thank you, I'm glad you liked the book!! That was a fun project, and I learned a lot while writing it.
4 days ago
I was pretty late to the AWS bandwagon (maybe 2019ish) but I had no idea there was a point when your resources were directly addressable by other customers.
I'm surprised they got anyone signing up at all - though I suppose back then having just about everything directly connect to the internet was much more of the norm
4 days ago
It was unironically pretty convenient. You had to manually set up NAT in a VPC for a long time (until they made NAT gateways) and some other early quirks were a pain in the ass. EC2 "classic" still had security groups and it was pretty effortless otherwise for a small deployment since it's connected to the internet from the start.
4 days ago
If you want to read more, it was called "EC2 Classic" (well, it wasn't called that before VPCs were launched!). There was a discussion about it being retired on HN here: https://news.ycombinator.com/item?id=27988964
4 days ago
My recollection is that for a period of time, as a part of the internal “Move to AWS” (MAWS) campaign, the entire retail business ran within a single VPC. A lot has changed!
4 days ago
That's crazy. That would never work unless these are just a VLAN configured on existing switches. Even VXLAN wouldn't be able to do that 5 years ago.
4 days ago
AWS developed their own custom overlay networking system. It embeds tenant IDs into the packets for isolation
3 days ago
Running out of IP addresses within that VPC is a real difficulty for services still using it.
4 days ago
I was also surprised by this, does that mean it used to be impossible to not have a publicly routable IP in AWS?
4 days ago
Hey everyone, I'm the author. Let me know if you have any questions!
2 days ago
are you planning on turning this into a book also? if so I'd be interested. the blog posts were very helpful :)
a day ago
I've been thinking about it! Maybe a book that covers the basics of putting an app up on AWS... networking, covering the different options such as EC2, ECS, and fargate, plus a bit about load balancers and IAM.
4 days ago
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