Benchmarking Different Implementations of Shadowsocks

Thursday, June 17, 2021

For servers with slow CPU Hosting Shadowsocks proxy servers is usually an easy task. You install it, and just forget about everything. And due to it being a lightweight proxy, shadowsocks is usually I/O-bounded: To achieve highest throughput, you need higher ethernet, not faster CPU. However, it is not always the case. It is known that some VPS providers only focus on premium connections and bandwidth, and completely ignores CPU and RAM performance to save money(cough bandwagonhost cough).…

How to Generate New SSH keys in macOS

Wednesday, June 16, 2021

Keychains, Keychains everywhere For a long time, I wanted to switch all my SSH keys from rsa to ed25519. A lot of online tutorials default to rsa cipher, which generates long and potentially less secure keys. I was once a victim of such crap. Fortunately, there is an alternative: ed25519. ed25519 generates much shorter public keys, and the encryption speed is apparently faster than rsa. Why do those tutorials keep recommending rsa anyway?…

How to Upgrade an outdated Arch Linux system in 2021

Saturday, June 12, 2021

GPG and pacman errors are annoying So, I was trying ungleich.ch’s IPv6 VPS. It is apparently cheap, and I wanted to host a Matrix server of some sort. It does come preinstalled with Arch Linux, which is good. That means I can get the latest software without relying Docker. However, it apparently comes with an outdated copy of Arch Linux. The kernel version is 4.19, while an up-to-date kernel should be 5.…

How to Install Open Camera Software for Raspberry Pi

Monday, May 31, 2021

An open alternative to propriety libbcm_host.so everyone hates For the longest time I’ve hated on the propriety Raspberry Pi camera stack. It is propriety, it is non-standard, and it is propriety. It depends on the slow and niche Broadcomm GPU that everyone hates. Even more, only Raspberry Pi OS is supported, which means 32-bit operating system only. It is not a good experience for me. Some people might say: “Raspberry Pi OS had a 64-bit beta version a year ago!…

Fix Missing 5GHz WiFi for Raspberry Pi 4 on Manjaro ARM

Saturday, May 22, 2021

Ugh, regulations For some reason, my Manjaro ARM install on the Raspberry Pi 4 is missing my 5GHz WiFi. It can scan some 5GHz networks, but not my home network. This never happened before on my Arch Linux install, and is very weird. I am aware that this is probably due to wireless country code being set up incorrectly. In Raspberry Pi OS, there is a way to setup country codes for wireless devices through raspi-config.…

How to enable butter-smooth Hardware-accelerated Graphics on Raspberry Pi

Friday, May 21, 2021

Wayland and faster Firefox FTW! When I first got the Raspberry Pi 4, I was excited. A pocket-sized desktop computer? I can do so many things with it (like watching Youtube)! On the other hand, I’ve been skeptical regarding Raspberry Pi’s GPU capabilities. Not only is it outdated, but also quite niche to work with. After actually testing out my brand new Raspberry Pi 4, my disappointments were real.…

How to Install Arch Linux in 2021

Tuesday, April 6, 2021

Seriously, why are you even here It is the year 2021. In this post-COVID world, Arch Linux is deemed critical for the survival of humanity. Therefore, every responsible human should enlighten themselves with the knowledge of Arch Linux, an elegant way of wiping Microsoft Office completely from your computing devices, and restoring things to its natural order. For your information, Arch Linux is an operating system for people with enough power to despise Debian, but have too few beard to compile Gentoo.…

Dedicated IPv6 address per Shadowsocks Instance

Tuesday, March 23, 2021

For better or for the worse Back when I sell shadowsocks proxies, a proxy server will often become overcrowded. Most of the people only used a few gigabyte bandwidth per month, so the most profitable option was to assign at least 40 people per proxy server. However, some websites(GOOGLE) sense a disturbance in the force, and decided to show random captchas everyday. It is pretty reasonable: too many users make the proxy server appear like rogue bots.…

Build your own IPv6 VPN with Wireguard

Saturday, January 9, 2021

Finally, no /etc/network/interfaces and wg-quick Update Mar 23 ‘21: Improve the stability of IPv6 tunnel. I like IPv6, but Cox’s IPv6 network is suboptimal. I like the idea of a VPN providing millions of IPv6 addresses to its clients. Wireguard, it seems, is the obvious choice for creating an IPv6 VPN. Yes, I did set up Wireguard servers before using Debian, /etc/network/interfaces and wg-quick. It was not the best experience.…

OTG Ethernet: Connect to Raspberry Pi 4 via USB-C

Sunday, January 3, 2021

The Real and Linux way to do this So I was testing some code on my loyal Raspberry Pi 4, ver. 1.2. The Pi is directly connected to my router in another room. Cuz, like, Pi’s ethernet is so much more stable than its wireless. The downside is that every time the Pi had an issue, I had to run over to the other room to recover it.…