Recent posts

Clash for Windows 自定义规则整合

自从今年年初换了机场之后,我从 Shadowsocks-Windows 换到了 Clash for Windows。Clash 确实比纯 SS 好用多了,尤其是订阅功能,特别是订阅里还可以自带一系列分流规则。不过我用的那个订阅规则不够完善,想要自己添加一些。以前用 SS 的时候,我自己写了 PAC 脚本用于实现分流,当然可控性也更好,这次不方便用 PAC 了,就得研究研究 CFW 的功能了,...

1 minute read

Enabling better “Related Posts” with Jekyll

There’s a less-known feature of Jekyll that populates related_posts correctly with “related” posts, instead of the 10 latest posts when it’s disabled by default.

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Use RSA CA Certificates with OpenSSH 8.2

OpenSSH 8.2 is coming to the latest Long-Term Service release of Ubuntu, Focal Fossa (20.04), and has some breaking changes for users using an SSH Certificate Authority.

3 minute read

3 ways to use MySQL / MariaDB CLI without password

For all of us who are learning to use or developing with MySQL or MariaDB, it’s a common task to manually log in to the database for inspection. This is usually done with the mysql command line cli...

4 minute read

High-performance mass web crawling on AWS

The 3rd-and-last experiment of course Web Information Processing and Application required us to create a recommendation engine, and “predict” the rating (1-5 stars) for 4M user-item pairs based on ...

16 minute read

Managing servers with OpenSSH Certificate Authority

Since the addition of the website server for an external corporation, I now have 5 Linux servers to manage on my own. I also have 4 terminal devices that I use to connect to those servers: two of m...

6 minute read

How to change email of your Nvidia account

I recently retired a few old email addresses, and am currently going in a row to change email for accounts associated with those emails. Everything else went smoothly, with my Nvidia account being ...

1 minute read