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Plesk security best practices

Article ID: 114620, created on Aug 21, 2012, last review on Sep 18, 2015

  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 11.0 for Windows
  • Plesk 11.5 for Windows


Are there any tips for keeping Plesk secure?


General rule to secure Plesk is make sure the latest updates are installed. Also you can check more useful topics bellow.

Note: Some of features bellow are available only as of version 11.

  1. First, make sure you go through the list provided in the following Knowledge Base article:

    • 114396 Securing Plesk: Best Practices to Prevent Threats

    The article above lists the most common causes of server intrusions, along with ways to prevent and eliminate them.

  2. Do not forget to check the Securing Panel section of the Administrator's guide. Topics covered in this section include the following:

    • Restricting administrative access (from specific IP addresses)
    • Setting up the minimum password strength
    • Turning on the Enhanced Security mode
    • SSL protection
  3. Linux users may also check the advanced documentation pages related to PP for Linux security: Enhancing Security. This documentation covers the following topics:

    • Restricting script execution in the /tmp directory
    • Configuring site isolation settings
    • Protecting users from running tasks on behalf of root
  4. If you are dealing with credit cards, this document is worth reading:

    Meeting PCI DSS Requirements for Plesk Suite 11

  5. It is recommended to be aware of these issues:

    • 9689 FTP users have access to root directory on server
    • 11239 SLAAC Attack - 0day Windows Network Interception Configuration Vulnerability
    • 112171 Apache HTTP Server CVE-2011-3192 Denial Of Service Vulnerability
    • 113321 Remote vulnerability in Plesk Panel (CVE-2012-1557)
    • 114625 PP accepts both old and new admin passwords when integrated to CBM
    • 115942 Public issues VU#310500, CVE-2013-0132, CVE-2013-0133
  6. These articles may also be useful in certain scenarios:

    • 1323 How can I run Rootkit Hunter with the update option?
    • 1357 [Security] Defending against a SYN-Flood (DOS) Attack
    • 1763 [Info] How can I ensure that Apache does not allow the SSL 2.0 protocol, which has known weaknesses?
    • 7027 [How to] RKHunter warning improvement
    • 8119 How to prevent your Plesk from brute-force attacks
    • 112156 How to set up a file audit on Windows server

TIP: Feel free to subscribe to updates to this article in order to keep track of new security issues.

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Plesk security questions

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