limit_conn_zone and limit_conn behavior in 1.2.8

[mrtn]

So, I've found out more about my situation. Apparently, limit_conn_zone
stuff I'm doing on Nginx applies to HAProxy only which is in front of my
Nginx.

I guess I have two options:

1. Use HAProxy (instead of Nginx) for request/connection limiting.

2. Limit requests/connections on Nginx based on X-Forwarded-For instead of
the IP of HAProxy (which is going to always 127.0.0.1).

Which do you guys think would work better? Thanks!

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,238331,238366#msg-238366