Domains are created for a particular client. Before creating a new domain you should add an IP address to the client's IP pool.
The Standard Apache configuration (RPM from Apache) allows for approximately 1000 domains (4096 open files) Plesk’s standard Apache web server configuration has been configured for approximately 4000 domains on a single server, which exceeds the standard configuration. However, the maximum number of domains for a single Plesk server can be increased to exceed even the current configuration. This operation requires recompiling the Apache web server kernel. If you wish to increase the possible number of domains to exceed 4000 contact your Plesk Support Technician to discuss the viability of a recompilation.
You must officially register a domain and Internet address before you create it in Plesk. You can do this using the REGISTER option available within Plesk or through any of the Internet registration services.
To create a new domain, follow these steps:
At the Client Home page, click the NEW DOMAIN button. The Domain creation page will appear.
In the Domain Name field - enter a valid domain name (e.g. mycompany.com) that is unique to the system. If you enter a domain name that already exists, Plesk will ask you to change it. The Domain Name field also has a prompt for the WWW tag. The WWW checkbox, when checked, indicates that the WWW prefix can be used when addressing the domain as well as the domain name by itself. If the box is unchecked, then the domain can only be referenced by its name without the WWW prefix.
Select a template to be applied when creating the domain from the drop-down list.
Select the IP address for hosting from the drop-down list.
When you are satisfied that the information is complete and correct, click UPDATE.
Plesk will notify you if some data is missing in any of the required fields. If data are missing, return to the domain record and complete the necessary fields.
Clicking UP LEVEL will discard all changes you made and return you to the Client Home page.
Once a new domain is created, a corresponding new entry is added to the Domains list.