There have been some reports about, users who are Read More
Author: ookangzheng
Renew let’s encrypt SSL cert on Debian
A note for how I renew blahdns.com let’s encrypt Read More
Firefox bypass HSTS limitation
Firefox sometimes very rude on what they think its Read More
My personal privacy concern tools
Updated on April 07, 2019 Mozilla Firefox add-on uBlock Read More
Most Common User agents for Browser
Updated April 22, 2019 If you care about your browsing Read More
Linux Debian common way to block IP
Here I will list out common way that I use IPtables Read More
Cloudflare CDN trace method
Here will show how you see which Cloudflare CDN server Read More
Linux tar gz, bz2, xz comparison
In the UNIX/Linux community, traditionally, if you Read More
Fix visual studio code Mac Could not create temporary directory: Permission denied
I got this error on Mac OS 10.14 VSCode with following Read More
Visual Studio Code install Fira code fonts
Programmers use a lot of symbols, often encoded with Read More