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Intro A few years ago, I wrote Vanity GPG Keys, a post about generating GPG keys with custom key IDs.

Screenshots… These days, we all have literally THOUSANDS of them.

Intro Raspberry Pis have always been the go-to platform for geeks to tinker with, but there’s a crucial problem.

Wow… It has literally been nearly a year (July 31, 2025) since I last wrote.

As the era passes, we are in serious need of encrypting our disks.

It’s been a long time since my last post about eUICCs.

Generating cryptographic keys is the most important* part in the cryptography world.

Wow it’s been another year.

This post has some updates!

S/MIME, our old friend, usually used to sign and encrypt emails.

OpenSSL is one of those tools that accompanies us all the time while still being ignored by almost everyone.

Wow, it’s been 2 years since I wrote the last storage-related posts (and that was actually my first blog post ever, learn more) So, two years have passed, and it’s time to write another one.

If you haven’t known what a GPG key is, please close this tutorial.

If you have a lab like me, you will probably need to serve some of your services through Web.

So, many of you may know that I am a long-time Linux user.

So, as you start to jump down the rabbit hole of cryptography, you will start to face another question: How can I take care of my keys?

If you have caught up with my blog for a long time, you may know what OpenPGP is.

It’s been another year.

If you have ever seen my previous posts, you might know that I have two YubiKeys and a bunch of Linux servers.

What is Parchive?

Introduction In today’s digital age, safeguarding our personal information and communications is of utmost importance.

Recently I have purchased an HK Mobi prepaid SIM card.

What is SHA & What is the problem SHA, also Secure Hashing Algorithm, is a widely used hash algorithm.

After the careful consideration, we decided to switch to static blog eventually.

Disclaimer No brands nor manufacturers paid me to write this blog post.

Proxmox Backup Server/Client is software that helps you protect and secure your important data.

In the modern era, where our lives are increasingly intertwined with technology, the need for robust digital security has become more crucial than ever.

A few months ago, I posted a tutorial on how to install Proxmox VE on the ARM instance of OCI, and this is a follow-up.

ServaRICA is a VPS merchant established back in 2010.

LiteServer started as a small byte on the big internet back in October 2007, which is now 15 years ago.

After two months’ suspension, everything is back on track and this blog will continue to update as normal.

This notice is bilingual.

Vultr is a cloud computing company established back in 2014.

In the modern era, cryptography has become one of the most important part of our digital life.

Proxmox Virtual Environment is a great virtualization platform.

OVHcloud is a European cloud computing and hosting company.

KURUN Cloud is a VPS company established back in 2019.

A S/MIME (Secure/Multipurpose Internet Mail Extensions) certificate is a type of digital certificate that is used to encrypt and sign email messages.

2022 Final Review This is December 31, 2022, 23:06 PM CST now. 2022 is a pretty terrible year for us, but there were still some noticable events which are worth noting.

Yubico is famous for its excellent hardware keys, and somehow they have become the industry standard.

Kimsufi is an affiliated company with one of the biggest providers in France – OVH.

Friendhosting is a VDS provider established back on April 20, 2009.

Nacsshost is a VDS provider located in Turkey.

This post will be Q&A formed, just see if this is great.

Speaking of instant messaging, you may think about WhatsApp, Telegram, Signal, etc.

We’ve heard a lot about Web3.0, Blockchain, Distributed Web, etc.

Gullo is a one-man virtual server provider.

idc.wiki (formerly 50network) is a virtual private service provider, established in 2016 (unsure, seen from domain RDAP data).

Interserver is an ancient cloud service provider which is established back in 1999!

To be clear, I am poor.