As used in:
HAProxy
Varnish
Stunnel
Stud
Hitch
Nginx
Apache

http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt

Large websites are frequently chained with Varnish and HAProxy and another reverse proxy.
It is becoming a requirement for any reverse proxy to ensure the client IP is returned to the application correctly.
Thanks,
Simon

by: Simon P. | over a year ago | Other