Xiufeng Guo 🌚
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m.ac
Xiufeng Guo 🌚
@m.ac
26 followers 17 following 40 posts
Founder of @s.ee, Entrepreneur, Domain Investor, Developer & Open Source Enthusiast.

🏠 https://m.ac/
🐦 https://x.com/gxf
🐘 https://c.im/@gxf
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m.ac
I built RDAP.SS — a modern Whois lookup tool powered by the RDAP protocol.

It supports lookups for domains, IPs, and ASNs — with structured JSON over HTTPS (finally!).

No more messy text parsing or port 43 nightmares.

Read more be.st/G85y
RDAP Whois Query Tool
Free RDAP-based WHOIS lookup tool for domains, IP addresses, and ASN numbers
RDAP.SS
November 3, 2025 at 8:25 AM
m.ac
How to use extrepo to add third-party repositories in Debian be.st/MIQr
How to use extrepo to add third-party repositories in Debian
Learn how to use extrepo to easily add third-party repositories in Debian. This step-by-step guide explains commands, setup tips, and safe methods for managing external software sources.
be.st
October 20, 2025 at 8:11 PM
m.ac
How to Upgrade from Debian 12 Bookworm to Debian 13 Trixie be.st/stcG
How to Upgrade from Debian 12 Bookworm to Debian 13 Trixie
Learn how to safely upgrade your Debian system from version 12 Bookworm to version 13 Trixie in this step-by-step guide.
m.ac
August 19, 2025 at 10:22 AM
m.ac
Microsoft: I am being flagged myself as spam.
May 8, 2025 at 10:13 AM
m.ac
#Bluesky should acquire bluesky dot com for its brand promotion, no one likes the bsky.app domain😑
May 7, 2025 at 9:47 PM
m.ac
How to Install Ghost on Docker (Step-by-Step Guide) be.st/3txh
How to Install Ghost on Docker (Step-by-Step Guide)
Follow our comprehensive step-by-step guide to install Ghost on Docker - perfect for quickly setting up your blogging platform.
be.st
May 5, 2025 at 8:42 PM
m.ac
How to Install Docker on Debian and Ubuntu (Step-by-Step Guide) be.st/docker #Docker #Debian #Ubuntu
How to Install Docker on Debian and Ubuntu (Step-by-Step Guide)
Learn how to install Docker on Debian and Ubuntu step by step. This guide covers installation commands, repository setup, and post-installation tips for beginners.
be.st
May 2, 2025 at 12:01 AM
m.ac
#Discourse be.st/ac3o , #Ghost be.st/BKdW , and #NodeBB be.st/G5sx have recently started federating over ActivityPub. Who's next?
Discourse and the Fediverse!
The Fediverse offers ways to expand the reach of Discourse communities and help them build bridges with people active in other spaces, all while keeping the conversation civil, meaningful and focused.
be.st
May 1, 2025 at 2:00 PM
m.ac
How to Install Mastodon on Debian and Ubuntu (Step-by-Step Guide) be.st/ydmw #Mastodon #Debian #Ubuntu
How to Install Mastodon on Debian and Ubuntu (Step-by-Step Guide)
Step-by-step guide to installing Mastodon on Debian and Ubuntu. Start your own decentralized social network today!
be.st
April 30, 2025 at 11:53 PM
m.ac
How to Install the Latest Nginx, MariaDB, and PHP on Debian and Ubuntu be.st/6qwN #Nginx #MariaDB #PHP #Debian #Ubuntu
How to Install the Latest Nginx, MariaDB, and PHP on Debian and Ubuntu
Learn how to install the latest Nginx, MariaDB, and PHP (LEMP Stack) on Debian and Ubuntu.
be.st
April 29, 2025 at 11:33 PM
m.ac
I’ve migrated my blog from @nextjs.org to @ghost.org . Check it out here: m.ac
Xiufeng Guo
Sharing insights on self-hosted apps, Linux, domain name, and life experiences.
m.ac
April 29, 2025 at 2:41 PM
m.ac
Build a High-Performance WHOIS Server Using Python and Nginx be.st/afby #whois #python #nginx
Build a High-Performance WHOIS Server Using Python and Nginx
Learn how to build a high-performance WHOIS server using Python and Nginx to meet modern compliance needs.
m.ac
April 29, 2025 at 1:49 PM
m.ac
The cache system of #Mastodon is terrible. I don’t understand why we’re expected to host millions of cache files from other sites on our own storage server. It's a pain to clean them up daily, and it takes forever 🤷
April 24, 2025 at 3:50 PM
m.ac
Trying out #Archlinux on #WSL2 and it's amazing!
April 23, 2025 at 9:58 AM
m.ac
Which name do you use on Discord? Nickname or real name?
April 16, 2025 at 10:03 PM
m.ac
I started using be.st as my personal URL shortener domain, powered by @s.ee ❤
Xiufeng Guo
Entrepreneur, Domain Investor, Developer & Open Source Enthusiast
be.st
April 6, 2025 at 6:48 PM
m.ac
I just had a McDonald's Big Mac delivery. Instead of the typical two beef patties, this burger was piled high with four! It was enormous, and I am completely full after finishing it.
April 5, 2025 at 4:46 PM
m.ac
I made an unofficial Elon Musk account @elon.mu.sk
March 23, 2025 at 4:38 AM
m.ac
I’m creating Bluesky accounts with custom domains as handles for our companies and projects.
March 23, 2025 at 1:47 AM
m.ac
I just realized that I have a domain b.lu which is pretty suitable for Bluesky. I will add it to @s.ee premium custom domain list tomorrow.
March 21, 2025 at 8:08 PM
Reposted by Xiufeng Guo 🌚
s.ee
Excited to announce s.ee - a lightning-fast URL shortening platform just launched today!

Simplify your links, track performance, and share effortlessly. Take your online presence to the next level - try s.ee now! #NewLaunch #URLShortener #s.ee
S.EE
Powerful Link Management Tool at the tip of your hand
s.ee
March 21, 2025 at 6:07 PM
m.ac
Try our new URL shortener service @s.ee
March 21, 2025 at 6:01 PM
m.ac
Cool, I can now use my own domain as my Bluesky handle!
By the way, I noticed that some of the links in your documentation are broken. blueskyweb.zendesk.com/hc/en-us/art... @bsky.app
How to Set your Domain as your Handle
The official account for the AT Protocol with a custom domain.   What's a custom domain? A custom domain is a unique name that identifies a website on the internet. For example, Bluesky’s domain is...
blueskyweb.zendesk.com
March 21, 2025 at 5:46 PM