vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

infoslack

Some books I've been studying to improve my skills as a SRE/System Engineer.

• Site Reliability Engineering: How Google Runs Production Systems
• Operating Systems
• Operating Systems: Three Easy Pieces
• How Linux Works, 2nd Edition
• Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation
• [Systems Performance: Enterprise and the Cloud](https://www.amazon.com/gp/product/0133390098?ie=UTF8&tag=deirdrestraug-20&linkCode=as2&camp=1789&creative=390957&creativ

coltenkrauter

Permanent WSL DNS Fix (WSL 2.2.1+)

If you're encountering ping github.com failing inside WSL with a Temporary failure in name resolution, you're not alone — this has been a long-standing issue, especially when using VPNs or corporate networks.

This issue is now fixed robustly with DNS tunneling, which preserves dynamic DNS behavior and avoids limitations like WSL’s former hard cap of 3 DNS servers in /etc/resolv.conf.

DNS tunneling is enabled by default in WSL version 2.2.1 and later, meaning that if you're still seeing DNS resolution issues, the first and most effective fix is simply to upgrade WSL. Upgrading WSL updates the WSL platform itself, but does not affect your installed Linux distributions, apps, or files.

To upgrade WSL, follow these steps,