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The flagship product of Plesk is Plesk Server Administrator, or PSA. This server management software makes use of a graphical user interface (GUI) which allows users to perform a wide array of administrative tasks simply and easily. With PSA, a user does not require advanced knowledge of the operating system or hours of work to create domains, add e-mail accounts or check site statistics. Instead, PSA makes server management accessible and easy for the average computer user. This manual deals with PSA 5.0.
Plesk Server Administrator (PSA) is designed to be used both by experienced administrators and users with little or no server administration or programming experience. Typical users and customers include:
PSA can dramatically reduce a Web hosting company or an ISP's support workload. Customers or "clients" no longer need to call their support staff to perform various routine or complicated tasks; PSA makes those tasks accessible to the customers enabling them to support themselves. Clients are empowered by PSA to manage their own accounts, allowing the hosting companies to focus on more complex issues. Because the Plesk database is structured around a customer (not a domain), PSA lets a hosting company run its reseller programs immediately after installing the software. PSA increases customer satisfaction and reduces the support workload.
Server manufacturers can include PSA as a pre-installed feature to add value to its products and to diversify its product lines. When PSA is installed, the server is ready for immediate use; it only needs to be networked.
Many small businesses do not have a full-time system administrator to maintain their company's Internet server. Limited technical skills or the high cost of outsourced hosting need not limit a business's online presence. PSA empowers a business's existing staff to manage all email and hosting requirements; the web-based interface empowers the average computer user.
Plesk Server Administrator (PSA) provides three tiers of administration:admin, client, and domain. All can perform tasks at remote locations via any standard Internet browser. The following capabilities exist for each type of user:
The Plesk Server Administrator (PSA) 5.0 is available for the following platforms:
For RedHat® systems you can choose either the self-extracting package or the RPM version.
Theoretically, PSA should work on all versions of Linux (e.g. Caldera OpenLinux, Debian Linux, et cetera), but Plesk Inc. has not tested the software on all versions and cannot guarantee the product's performance. The current release runs on RedHat® Linux. Future releases of PSA may run on other Linux versions.
Minimal hardware requirements for the PSA 5.0 installation are the same as that of the operating system being installed for use with PSA 5.0
|Number of domains||Amount of RAM||Processor|
|1500||2000||dual Pentium III|
|2000||4000||dual Pentium 4|
Supported mail clients:
By default PSA is entirely installed into the /usr/local/psa directory. It is important to partition the hard drive accordingly.
You do not need to know Unix or Linux or be a programmer in order to use the Plesk Server Administrator. Also, the PSA software is easy to install. PSA must be installed on a clean server in one dedicated host. The installation procedure is semi-automated, informing you of system changes and your progress at each step. There are no complex commands to learn and no technical information to know.
As soon as PSA is installed, both administrators and clients are ready to manage the system. PSA provides great flexibility to the user, enabling him/her to remotely access and administer servers at anytime. The default settings provided for opening accounts and domains can be changed with the click of a button. With PSA, each client can create his/her own settings and make his/her own adjustments.
The Plesk Server Administrator (PSA) uses extensive security measures to assure your system of the highest possible integrity and protection. It should be noted however that this is limited to PSA and the software it installs. The security of the server operating system is considered the responsibility of the system administrator and is not part of the PSA installation and/or set up:
PSA provides a generic secure socket layer (SSL) certificate that enables secure transactions between a remote user and PSA. However, this certificate will not be recognized by the web browser as being valid for your control panel URL, which results in warning messages. Certificates can be purchased directly through the PSA control panel or by contacting a certificate-signing authority directly.
There is a possibility of entering different IP-addresses for A domain record and domain hosting address (which is added into Apache configuration file) to ensure that the server functions properly behind the firewall.