We run a wordpress blog in a subdirectory from our main domain.
domain.com => Server A (Nginx) domain.com/blog => Server B (Apache)
The blog itself lies on a different (cheap shared hosting) server and gets reverse proxied.
Nginx => Apache
As every request to the blog gets tunneld trough our main server, Server B continuously blocks our Server A IP address, as all requests come from the same IP. If a lot of requests hit at the same time (mostly crawlers) we get blacklisted for 10 minutes and it results in a 502 bad gateway error.
Is there any way to pass the real IP address to Server B? Or knows somebody another solution, without upgrading to a root server? Hosting the wordpress blog on Server A is sadly not an option right now.