Hi, I am having trouble with ispconfig3 configuration. Client #1: I made client: Client1 I created DNS Zone for Client1 I assigned Server IP (ipv4) Address to Client1 from config. I add a website it shows server IP address and after setting up website everything is working perfectly. Gives a welcome.html Client #2: But now I made another client2. I created DNS zone for client2 I cannot assign same ip address to client2 from config. I add a website, I cannot assign ip except server, when adding a website. I am getting error when apache restarts. For that website. Code: 20.12.2014-02:08 - WARNING - Reason for Apache restart failure: Syntax error on line 7 of /etc/apache2/sites-enabled/900-rajaahaad.com.vhost: The address or port is invalid Action 'configtest' failed. The Apache error log may have more information. failed! I open that file and I see it shows having ip address of client1. But site is not working for client2 and gives apache account unavailable error. Code: <Directory /var/www/rajaahaad.com> AllowOverride None Order Deny,Allow Deny from all </Directory> <VirtualHost 220.127.116.11:80> DocumentRoot /var/www/rajaahaad.com/web ServerName rajaahaad.com ServerAlias *.rajaahaad.com ServerAdmin [email protected] Please suggest me what should I change in ISPConfig for allowing multiple client to use same ip address without an error. I have only one IPv4 address.