I want to expose my services publicly on my own domain name, how would you guys do that?
I have seen people using Cloudflare, but I don’t want to use Cloudflare out of principle. I have also seen stuff on caddy and frp that I’ve done some rough researching.
What do you guys do?
Security by obscurity is when the design or archetecture of the system is obscure enough to supposedly styme attackers (it doesnt), and as soon as people understand the design, your security is broken.
A hard to guess unpublished subdomain is a transparent and standard archetecture - nothing obscure about it and publishing that you use such a scheme doesnt break the security.
The subdomain is a bearer token that serves as an access control and just like a key or passphrase, has a security value proportional to the bits of information an attacker has to guess.
The real limitation is that browsers and humans are not great at not leaking domain names, so its very possible it will get leaked eventually and hard to rotate. Thats the reason they are weak. Still, they can be usefull to stop scanners just trolling for unpatched services.