configurando proxy reverso apache – passando header
<VirtualHost *:80>
ServerName servidor.dominio.com.br
ServerAlias servidor.dominio.net
ServerAdmin servidor@servidor.dominio.com.br
# configurando header IP
RewriteEngine on
RewriteCond %{REMOTE_ADDR} ^(.*)
RewriteRule ^.* - [env=MY_REMOTE_ADDR:%1]
RequestHeader set X-Kinghost-Ip "%{MY_REMOTE_ADDR}e"
# configurando proxy reverso
ProxyPreserveHost On
ProxyPass / http://10.99.99.100:80/
ProxyPassReverse / http://10.99.99.100:80/
# libera utilização de proxy
<Proxy *>
Order deny,allow
allow from all
</Proxy>
</VirtualHost>
