2020.01.09
IKEv2, or Internet Key Exchange v2, is a protocol that allows for direct IPSec tunneling between the server and client. In IKEv2 implementations, IPSec provides encryption for the network traffic. IKEv2 is natively supported on some platforms (OS X 10.11+, iOS 9.1+, and Windows 10) with no additional applications necessary, and it handles client hiccups quite smoothly.
2019.12.19
TCP BBR is a TCP congestion control algorithm developed by Google. It tackles shortcomings of traditional TCP congestion control algorithms (Reno or CUBIC). According to Google, it can achieve orders of magnitude higher bandwidth and lower latency.
2019.12.17
Safely delete all files with a specific extension (e.g. '.bak') from all subfolders using one command.
2019.12.05
Nextcloud, a fork of ownCloud, is a open-source file sharing server that allows you to store your personal content, like documents and pictures, in a centralized location, much like Dropbox. It also returns the control and security of your sensitive data back to you, thus eliminating the use of a third-party cloud hosting service. Here, I'm going to walk through the installing and configurations on Ubuntu 18.04 using the snappy packaging system.
2019.12.04
上回说到自己写个脚本去下载国家地理的每日一图，今天就完善（其实就是再写生中文滴）一下，让 Mac 自动去下载壁纸到指定文件夹，简单设置一下让 Mac 自动切换壁纸，给既定的生活添点变化。
2019.11.26
AdGuard Home supports all modern DNS encryption protocols, which enable us to setup a secure DNS server with AdBlock filters.
2019.11.22
A simple note on setting up the OpenConnect server, with HAproxy load balancer enabled.
2018.04.22
A shell script to automate the process of downloading National Geographic Photo of the Day. The script saves the image of Photo of the Day in the same directory where the script itself resides. You can use cron to make it automatically running everyday.
