I'm able to use limit_req to rate-limit all requests to my server. However I'd like to remove the rate restriction for certain IP addresses (i.e. whitelist) and use a different rate restriction for certain others (i.e. certain IPs I'd like as low as 1r/s). I tried using conditionals (e.g. if ( $remote_addr = "1.2.3.4" ) {}) but that seems to work only with rewrite rules, not for rate-limit rules.

I'm using nginx mostly as a reverse cachining proxy in front of several gunicon/mod_wsgi applications and of course to server static files. I find that quickly my nginx confs become impossible to maintain; the issue is that I have a few patterns that are similar (or even identical) but I can't manage to make it clean. One of the biggest issues I have is that I would love to use named locations as

I'm looking into rate-limiting using nginx's HttpLimitReqModule. However, requests are all coming from the same IP (a loadbalancer), with the real IP address in the headers. Is there a way to have nginx rate-limit based on the ip in the X-Forwarded-For header instead of the ip of the source?

I need to write a rewrite rule for Nginx so that if a user tries to go to an old image url: /images/path/to/image.png and the file doesnt exist, try to redirect to: /website_images/path/to/image.png ONLY if the image exists in the new URL, otherwise continue with the 404. The version of Nginx on our host doesn't have try_files yet.