Make nginx accept requests only from a specific server

liakoyras

6/7/24, 10:02 AM

I want to configure an nginx server to accept HTTP requests only from a specific server.

I am not sure if this should be accomplished through the listen directive, or by using allow/deny rules in location. Or another method that I am not aware of.

When trying to find documentation about listen, I haven't found an example that uses an actual external IP, only stuff like localhost or other interfaces.

Is what I want even possible with listen? Or is allow/deny the better way to do it?

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symcbean

6/7/24, 10:10 AM

You seem to be focussing on restricting access by IP address - and even static IP addresses aren't permanent. There are better ways to go about this but they are a little involved (shared secret, VPN, client certs).

Yes, you can use the allow/deny rules. These can be in the location block, the server block or even the http block.

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liakoyras

6/7/24, 10:16 AM

I am aware of the caveats, however the only way for this to be done right now is using the IP. Do you know if it could also be done with `listen`? (this was also part of my question)

symcbean

6/7/24, 10:21 AM

The IP address option on the Listen directive specifies which LOCAL ip address nginx should accept connections on - so unless you have some very esoteric networking going on (e.g. a VPN) then this doesn't help.

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