mods-available/proxy.conf

<IfModule mod_proxy.c>
ProxyRequests On
ProxyVia On
<Proxy *>
Order deny,allow
#Deny from all
Allow from all
</Proxy>
</IfModule>

# a2enmod proxy
# a2enmod proxy_http

<VirtualHost *:80>
    ServerAdmin [email protected]
    ProxyRequests off
    DocumentRoot /var/www
    ProxyPreserveHost Off

    ServerName   alexlinux.com

    LogLevel error

    ErrorLog  /var/log/apache2/error_alexlinux.com.log
    CustomLog /var/log/apache2/access_alexlinux.com.log combined

        ProxyPass / http://alexlinux-new.com/
        ProxyPassReverse / http://alexlinux-new.com/
</VirtualHost>