Archive for December, 2010

Parallels Plesk Panel 10 - System Requirements

Before upgrade, run the Environment Pre-Check Script to insure that the environment and system components are ready to upgrade to Plesk 10.

Hardware Requirements:

Parallels Plesk Panel 10 for Linux
266 MHz Processor
512 MB of RAM (1 GB when hosting many accounts; 768MB minimum when also using SiteBuilder)
10 GB Hard Disk


The number of Parallels Virtuozzo containers with Plesk 10 can cost-effectively grow with more RAM on the Server. We recommend adding RAM.
PHP 5 is required for the brand new SiteBuilder.
Fedora has been discontinued as a supported Operating System for Plesk 10.

Supported Linux Operating Systems

* CentOS 5.x, 4.x (version 5.5 recommended)
* CentOS 5.x for AMD64 (version 5.5 recommended)
* RedHat Enterprise Linux 5.x,4x (version 5.5 recommended)
* RedHat Enterprise Linux 5.x for AMD64 (version 5.5 recommended)
* Ubuntu 10.04, 8.04 LTS
* Ubuntu 10.04 for AMD 64 (also 8.04 LTS)
* openSUSE 11.1, 11.0, 10.3
* openSUSE 11.1 for AMD64 (also 11.0, 10.3)
* Debian GNU/Linux 5.0, 4.0
* Debian GNU/Linux 5 for AMD 64 (also 4.0)
* CloudLinux 5
* CloudLinux 5 for AMD64

Shell description is missed in crontab files after migration.

After the migration to the Parallels Plesk Panel 10.x, the cron jobs are not executed by chrootsh.

The SHELL value in the crontab is not copied from the target to the destination server during the migration. Say, servers A and B are configured to use chroot shell. When migrating a customer account with crontab and the SHELL value is omitted:

To resolve this issue, Determine the path to the chrootsh utility with the following command:

# grep chroot /etc/shells

Add the SHELL value to the crontab with the command:

# /usr/local/psa/bin/server_pref -u -crontab-secure-shell

Reference :

Mailbox disk usage in Parallels Plesk Panel.

Problem: Parallels Plesk Panel shows incorrect statistics for the mailboxes on the domains. Domain mailboxes use less disk space then it is shown at the Control Panel. Disk usage for the mailbox is shown even if mail service is disabled on the domain.

Issue was discovered in Parallels Plesk Panel version 10.0.1.

In order to fix the issue apply hot-fix on the server.

Replace the file $PRODUCT_ROOT_D/admin/smb/application/controllers/StatisticsController.php with the file from the attachment below.

The installation procedure is at

After that recalculate statistics for the domains with the statistics utility. Statistics utility can be found in directory e $PRODUCT_ROOT_D/admin/sbin/.

/usr/local/psa/admin/sbin/statistics –calculate-one –domain-name=domain.tld

Reference :

Parallels Plesk Panel 10, redirected to incorrect URL

Possible symptoms that you may face are:

•After installation when you try to go to https://your-domain-name:8443 to log in into Plesk, you are redirected to incorrect URL https://incorrect-url:11444/relay .
•After postinstall wizard when you try to log out, you are redirected to incorrect URL https://incorrect-url:11444/relay .
•When you try to log in to Plesk in the second time (after postinstall wizard is passed), you are redirected to incorrect URL https://incorrect-url:11444/relay .

Custom & Business Manager and SSO are configured to work with incorrect (temporary) URL after installation.

To resolve this issue change the server hostname to valid one.

Reference :

Tool for checking issues before upgrade or migration to Parallels Plesk 10.x version

Due to the changes in business model in Parallels Plesk Panel 10.x release, not all previous accounts settings will be portable from the previous Parallels Plesk Panel releases.

Attached is a script that allows checking environment before upgrade or migration. Now it is checking business logic issues and it works for both platform: Linux and Windows. This tool could be launched prior to upgrade for the purpose of getting a report on potential problems with the upgrade. Based on the report a hoster can decide whether upgrade to Parallels Plesk Panel 10.x is suitable.

How to use..

# php plesk10_preupgrade_checker.php [plesk-admin-password] -d safe_mode=Off

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