Plesk License Key

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Detailed explanation

The messages below are all completely normal and do not normally affect the running of your server/websites in any way.

The reason these messages appear is because it is Parallel's (the creators of Plesk) way of manually checking/tracking if the license is still being used, still valid and if you have upgraded/downgraded it. Normally you cannot set it to do this process automatically.

The Parallels Plesk Panel key has a built-in expiration date. This has been implemented to help prevent fraud and theft. It requires the Parallels Plesk Panel software to check back with Parallels' licensing system during a 10 day grace period (prior to the expiration date) to verify that the key has not been reported stolen and is being used in accordance with the End User License Agreement. Once this is verified, the expiration date is auto-updated.

Parallels Plesk Panel will attempt to connect via TCP/IP to ka.parallels.com through port 5224. Please make sure that this is not blocked by a firewall. If the Parallels Plesk Panel key should expire, check your firewall and then click on "retrieve keys" in the Parallels Plesk Panel license manager. If the key could not be updated, please contact your hosting provider to have the license manually re-applied.

It is common to have to click Retrieve Keys every 1-4 weeks.

The amount of Parallels Plesk Panel resources you operate with...

The amount of Parallels Plesk Panel resources you operate with has exceeded the limits defined by your current product license. Please contact Parallels sales department to purchase a new licensed key.

The license key is invalid

You are currently operating within the grace period...

You are currently operating within the grace period of your product license.

Resolving the issues above

If you get the messages above you can fix this by doing the following:

  • Click retrieve keys and then OK.
  • If the message still is present, log out and log back in.
  • If it takes you to a blank page after clicking retrieve keys take everything out of the URL/address bar after 8443 and hit enter. Then see the step above. If this still fails then see the bottom of this section.
  • You should then be able to log into the Plesk control panel with admin again.

When using the following command in SSH:

/usr/local/psa/bin/admin --show-password:

You will get the following message in both Plesk and SSH:

Error: The license key is invalid. In order to use the Panel, please obtain and install a new valid license key. Your license key has expired. To continue using your Panel, you must purchase a non-expiring commercial license key.

You will likely not be able to log into the Parallels Plesk control panel using the username admin so log in with the username root.