格物致知

TProxy is a transparent proxy for Linux, and this article will introduce you to what TProxy is and how it works.

Iptables is a basic firewall tool in Linux and also a very common network tool, but iptables is just an application layer application, so how does iptables relate to the Linux kernel network stack? In this article, I will give a brief introduction about this issue.

It's easy to write code, but hard to debug code, which is a very touching thing for people who have written a lot of code. Here I made a record of how to debug code remotely with Goland, if you need it, I hope it will help you too.

Although I use npm from time to time, I’m really not familiar with it, but recently I suddenly wanted to understand what it is and what it does, so I took a little more serious understanding, and this article will record what I understand about npm.

Although Linkerd has heard of its name for a long time, and probably understand some of its architecture, but really have not tried it, mainly because its previous version is really not easy to use, but it is said that the second version has changed a lot, so recently followed the video of others to play a little, by the way, a water.

If you use Prometheus as a monitoring tool, then as you get deeper into it, you will run into some performance issues, so you will consider how to extend Prometheus, and this article describes one official way to do so: federation.

We’re all familiar with TCP, the three handshakes, reliable transmission, and all that jazz, but there are a few other things that are interesting, such as do you know what the size limit is for a TCP send?

A common problem under Linux is that our SSH sessions to remote machines are interrupted due to network or shutting down the client (e.g. laptops with lids closed), especially when running an important command that takes a long time to run.

This article was compiled by me in May 2019, but I never finished it and put it in the draft box, so I suddenly came up with it today, so I edited it by hand. In fact, the reason I didn't finish it was because I translated a lot of content before, and I felt that I had failed to live up to some of my own understanding by directly playing the name of translation, so I piled it up, and then gradually added my own experience and understanding to it, so I organized it today.

This article describes the Benchmark tool, including its testing principles and some relatively complex test implementations.