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Implement IPv6, where NATs are not necessary. And the address space is large enough where anyone can get a static prefix. If you need v4, order static IP addresses. Dynamic DNS only goes so far. It may not update fast enough. Or, the ISP may put you behind multiple layers of NAT and block any hope of reaching you from the outside. Either way, buy the ...


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This is an answer to your question #2. URLs are simply pointers to resources, which sometimes can be files or directories. It all depends on the actual web server configuration what response is returned to URLs. If we are restrict discussion to web servers which only serve files from filesystem, then it depends on the webserver configuration if they allow ...


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