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99harry

4 karma · joined October 23, 2026

DevOps Engineer based in Vietnam. Interested in self-hosting, homelabs, small VPS setups, and keeping ops boring.

Currently building Keenrig: one command turns a blank Ubuntu server into an app server with HTTPS. The server part is AGPL. An optional paid cloud console can also create the VPS and register the domain for you.

https://github.com/keenrig/keenrig

Contact: hello@keenrig.com

submissionscomments
99harry··on Port 0: The Port That Does Not Exist
That might not quite fit my use case. My AI-generated scripts probably won't modify system-level configuration files to change the port range
99harry··on Port 0: The Port That Does Not Exist
Sometimes I have scripts that automatically assign ports starting from 30000. How would that work? Would I have to bind to port 0 multiple times until I randomly get a port in that range?
99harry··on Running a law firm on Free software
My biggest concern is having only one DevOps person. What happens if you get sick or are unavailable? You still need someone with around 5 years of DevOps experience. Being understaffed at critical moments can easily lead to losing customers. Also, how many employees and customers do you have? Do major clients, such as corporations or banks, require security certifications or specific processes? I think customers need to feel they can trust a company that is large enough and capable of taking responsibility, rather than a one-person company.
99harry··on Tailscale SSH: Investigation and remediation update
That makes sense. That might explain why ZeroTier is sometimes unstable for me. It seems to create virtual MAC addresses, which may cause network connectivity issues. I think I might switch to Tailscale, hopefully it will be more stable
99harry··on Tailscale SSH: Investigation and remediation update
I think it contains a lot of information. Simple definitions always need a human touch
99harry··on Tailscale SSH: Investigation and remediation update
I've already installed WireGuard, ZeroTier, and OpenVPN. What's the difference between Tailscale and these other tools?
99harry··on Stalwart v1.0: The Fastest Mail Server on the Planet
Disclosure: I build Keenrig, a self-hosted app platform, and I'm considering packaging Stalwart. For people running it: what should a one-click install get right (auto-DNS, cert handling, backups of the data dir) so it doesn't feel worse than a manual setup
99harry··on Stalwart v1.0: The Fastest Mail Server on the Planet
I also want to set up a mail server, but when setting it up, I heard that it needs to be authenticated so the mail doesn't go to spam and can be used as a service
99harry··on Active incident at Dreamhost forcing password reset
I've been using Contabo, and so far, the service has been quite stable and professional. Updates are handled automatically, and I haven't encountered any major issues DigitalOcean seems a bit slower and more expensive in comparison, especially when Contabo offers a VPS with 4 CPU and 8 GB of RAM for just 4.50 euro/month.
99harry··on FreeDNS
This is usefull, many thanks! Im building Keenrig, a self-shoting opensource app that gives users subdomains for their app, and your comment made me take another look at this. because some cookie issue . I'm moving user apps off my main domain (keenrig.com) onto a separate one - keenrig.app. the main reason is isolation: an app on a user subdomain shouldn't be able to set cookies for my console, or for other user'apps. many thanks