Issues #75 Nov 12, 2018 (26)

Object-oriented design patterns in the kernel Despite the fact that the Linux Kernel is mostly written in C, it makes broad use of some techniques from the field of object-oriented programming. Essentially, method dispatch and data inheritance are what we need. Part 1(this article) focus on method dispatch. Part 2 focus on data inheritance.

An introduction to approachable threat modeling Charming to read. I’m sure you will feel been there done that to those 2 tales of threat models in this article. We explore how pairing our existing knowledge and experience with a few simple questions can help us build better systems and keep them safe.

How to Design Software Good This post is written to highlight Haiku OS. However, they are general rule. And they are really good rule. It read more like GUI design rule. But at the end of the day, our software are all about serving a need to end-user through some user interface.

Dissecting Apple's Meta-CDN During an iOS Update A very well analysis on how Apple design their CDN. How iOS devices discover and download updates, how download requests are mapped to CDNs, and the architecture of Apple’s content cache infrastructure. It’s just 7 pages to skim.

Scaling the Monolith More and more get on microservice trend, while it solve certain problems, it comes with its own issue. Before you decide to split apart your app, there are a number of tactics you can use to scale it majestically. Spend a significant amount of time trying to solve your existing problems before making big changes.

PostgreSQL Performance Tuning Tutorial Default setting of a databse cannot fit everyone. Depend on what kind of query and access pattern we need to tune our db. However, diving into vast amount of postgres doc to find what we want isn’t easy. This article summarize some settings and strategy to tune the db.

Causal guarantees are anything but casual Traditional databases usually server read/write from a single node so natually provide sequential ordering guarantees. Distributed system like MongoDB must coordinate and order related events across all of its nodes, and limit how fast certain operations can complete to do so. MongoDB 3.6 passed Jepsent test, verify that MongoDB 3.6.4’s sharded clusters offer comparable safety to non-sharded deployments.

A Netflix Web Performance Case Study There are no silver bullets to web performance. Simple static pages benefit from being server-rendered with minimal JavaScript. Libraries can provide great value for complex pages when used with care.

Masscan as a lesson in TCP/IP masscan can scan entire internet within 6 minutes. it contains its own network stack. Masscan will not using laptop’s IP address, it has its own network stack and its own IP address, eve the IP is “wrong”. How routing work since the IP address is invalid?

How to deploy modern TLS in 2018? TLS 1.3 was finally released. Previous version has few attack vectors one has to aware to address when deploying TLS such as CRIME, BREACH, DROWN…A must-read if you want to deploy TLS the right way.