Block public acess from subdomains except your own dynamic domain

Website, Application, Performance DNS & Network
1

What is the name of the domain?

ombcosmec.shop

What is the issue you’re encountering

I need to block public access to specific subdomains I have, but I can’t use a firewall rule because my home IP is dynamic and changes frequently. Setting my IP today to only be the one to access might not work tomorrow after the ip changes rondomly later. Note: This is for a school project on a tight budget, so free solutions are preferred. Also, I don’t have access to configure my router.

What steps have you taken to resolve the issue?

Searched everywhere litterally for 3 days

What feature, service or problem is this related to?

I don’t know

2

Are the subdomains only accessed via browsers?

If so, you could just set a permanent Cookie in your browser for these subdomains and block all access without these cookies.

Or you use Cloudflare Access and get a code send to you when you want to login.

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