I'm pretty new to selfhosting and homelabs, and I would appreciate a simple-worded explanation here. Details are always welcome!
So, I have a home network with a dynamic external IP address. I already have my Synology NAS exposed to the Internet with DDNS - this was done using the interface, so didn't require much technical knowledge.
Now, I would like to add another server (currently testing with Raspberry Pi) in the same LAN that would also be externally reachable, either through a subdomain (preferable), or through specific ports. How do I go about it?
P.S. Apparently, what I've tried on the router does work, it's just that my NAS was sitting in the DMZ. Now it works!
I have wrestled with the same thing as you and I think nginx reverse proxy and subdomains are reasonably good solution:
Only fault I’ve discovered are some public ledgers of TLS certs, where the certs given by letsencrypt spill out those semi-secret subdomains to the world. I seem to get very little to no bots knocking my services though so maybe those are not being scraped that much.
Pretty solid! Though insta-ban on everything :80/443 may backfire - too easy to just enter the domain name without subdomain by accident.
Could be indeed. Looking at the nginx logs, setting a permaban on trying to access /git and a couple of others might catch 99% of bots too. And ssh port ban trigger (using knockd for example) is also pretty powerful yet safe.