On October 19, 2021, we have enabled single-sign-on for our Plesk Support Center to provide a seamless login/account experience. This implies that you’ll be able to use a single account across any of our web-facing properties.
If you had already registered your account at MyPlesk.com/Plesk360/Platform360 please use one for login. Otherwise please re-register it using the same email address as your existing Zendesk login (support account). It’s essential that you use the same email address on our support center to ensure that your tickets stay attached to the same account.

Articles in this section

See more

Ubuntu 20.04 support in Plesk

Avatar
George Alibegashvili
Updated
Follow
Plesk for Linux kb: how-to ABT: Group B

Applicable to:

  • Plesk for Linux

Question

Is it possible to install Plesk on Ubuntu 20.04?

Answer

Plesk now supports Ubuntu 20.04 LTS (Focal Fossa) starting from Plesk Obsidian 18.0.29

However, keep in mind the following limitations:

  • Ubuntu 20.04 ships with OpenSSL which does not support TLSv1.1 and below. Because of that: TLSv1 and TLSv1.1 ciphers cannot be enabled on services via  server_pref command;
  • psa-watchdog component is not available, since it requires a major update to use TLSv1.2 or higher;
  • The following components are deprecated or EOLed by Plesk or their respective vendors: mod_bw ( deprecated ), php <= 7.0 ( EOLed );
  • Atomic (tortix) ModSecurity ruleset is not available because Atomic doesn’t support Ubuntu 20.04 yet;
  • Time synchronization is not available on Tools & Settings > System Time because Ubuntu 20.04 uses chronyd service (enabled by default) for time synchronization. Same as on CentOS 8 and Debian 10;
  • Connection to the server might be interrupted the first time Plesk Firewall rules are activated;
  • There are warning about fail2ban and spamassassin services from systemd in the logs:

    CONFIG_TEXT: PIDFile= references path below legacy directory /var/run/

    These messages can be ignored.

Additional Information

Comments

23 comments

Sort by Date Votes
  • Avatar
    murat

    Thank you for ubuntu 20.04 support. regards. 

     

    note:tlsv1 and tls1.1 ubuntu can also be activated at 20.04. https://askubuntu.com/questions/1233186/ubuntu-20-04-how-to-set-lower-ssl-security-level

    0
    Comment actions Permalink
  • Avatar
    Robert

    Plesk does not support dist-upgrade from any previous versions of Ubuntu;

    Does this means there is no way to updated from 18.04 lts to 20.04lts ?  only via fresh install ?

    0
    Comment actions Permalink
  • Avatar
    Anton Maslov

    Robert:

    >Does this means there is no way to updated from 18.04 lts to 20.04lts ?  only via fresh install ?
    Yes, currently update via migration to a new server is only available. But it is planned to add in future possibility of dist-upgrade from 18 to 20

    3
    Comment actions Permalink
  • Avatar
    Michael Lieder

    Ich bekomme nach der Neuinstallation folgende Meldung:

    Die Erweiterung "Plesk Premium Email, powered by Kolab" konnte nicht installiert werden
    Fehlgeschlagen
     
    • Die Ausführung von post-install.php ist fehlgeschlagen. Fehlermeldung: [2020-10-27 09:22:23.471] ERR [panel] Extension kolab does not support Ubuntu 20.04:
    • 0: /opt/psa/admin/plib/modules/kolab/library/Installer.php:40
    • Modules_Kolab_Installer::getInstance()
    • 1: /opt/psa/admin/plib/modules/kolab/scripts/post-install.php:25
    • ERROR: pm_Exception: Extension kolab does not support Ubuntu 20.04 (Installer.php:40)
    0
    Comment actions Permalink
  • Avatar
    Markus (Edited )

    Hi Anton Maslov,

    sorry for the old, stupid question about do release upgrade from Ubuntu 18 to 20. In the top of this site Plesk support says:

    A guide for dist-upgrade from versions 16 to 18 and 18 to 20 will be available on Plesk Obsidian 18.0.31.

    Now, we have 18.0.31 since a few days, but in change log nothing about dist-upgrade 18 to 20. No problem if Plesk is already working on it, I have respect for the hard work by Plesk all the time. Perhaps, or sometimes, the documentation is only forgotten. That's why I ask.

    Lots of greets

    0
    Comment actions Permalink
  • Avatar
    Ivan Postnikov

    Hello Markus

    Work on this is still in progress.

    Michael Lieder

    According to the Plesk Premium Email extension page, Plesk Premium Email does not support Ubuntu 20.04 yet. It supports the following operating systems:

    • CentOS 7
    • Debian 8
    • Debian 9
    • Red Hat Enterprise Linux 7
    • Ubuntu 16.04
    • Ubuntu 18.04
    1
    Comment actions Permalink
  • Avatar
    Marc

    Wir haben jetzt 18.0.32, wann denkt Ihr, wird das dist-upgrade von Ubuntu 18 auf 20 möglich sein?

    3
    Comment actions Permalink
  • Avatar
    Carlos Martínez Gadea

    Hi!

    Has the upgrade process between Ubuntu 18 to Ubuntu 20 been finished? Or is there any estimate when it will be?

    Thanks in advance

    0
    Comment actions Permalink
  • Avatar
    Marc

    Any news would be great, when it is planned to have it running.

    0
    Comment actions Permalink
  • Avatar
    Anton Maslov

    Hi, Marc please check this article. During testing 18>20 upgrade we found additional items requiring attention, thus it is expected with 18.0.33 release in February. 

    0
    Comment actions Permalink
  • Avatar
    Marc

    Great news, thanks a lot for your note and work.

    0
    Comment actions Permalink
  • Avatar
    Stephan

    Ubuntu 20.04 now Supported by Atomic?

    https://updates.atomicorp.com/installers/aum

    Lines 812 - 815:

    "elif egrep -q "Focal" $RELEASE ; then
    DIST="focal"
    DIR=ubuntu/20
    PKG=deb"

    0
    Comment actions Permalink
  • Avatar
    Computer-Treff

    Is there a timeframe when psa-watchdog will become available with TLS 1.2?

    0
    Comment actions Permalink
  • Avatar
    George Alibegashvili

    Hello @Stephan

    Support for Atomic ruleset for Ubuntu 20.04 in Plesk is planned but not implemented yet.

     

    0
    Comment actions Permalink
  • Avatar
    Jorge

    Please keep in mind that you cannot run the Acronis Backup extension on Ubuntu 20.04LTS. This is due to the snapapi that only works with 4.18.x kernels. Ubuntu 20.04LTS only ships with 5.0 kernel versions. I now need to reinstall the server again with Ubuntu 18.04TLS.

    0
    Comment actions Permalink
  • Avatar
    Paul Daniels

    Does 20.04 ship with PHP 5.2.17, 5.3.29, 5.4.45, 5.5.38, 5.6.40, 7.0.33, 7.1.33, 7.2.34, 7.3.28, 7.4.18, 8.0.5

    0
    Comment actions Permalink
  • Avatar
    George Alibegashvili

    Hello @Paul Daniels

    Modern OS as Ubuntu 20 supports PHP versions starting from 7.1.
    https://support.plesk.com/hc/en-us/articles/115004966813-What-PHP-versions-come-with-Plesk

    To install PHP versions provided by Plesk, visit this KB article:
    https://support.plesk.com/hc/en-us/articles/115000769793

    0
    Comment actions Permalink
  • Avatar
    Paul Daniels

    Thank you. Is there no way I can install PHP5x under Ubuntu 20.04. Even manually?

    0
    Comment actions Permalink
  • Avatar
    George Alibegashvili

    Hello @Paul Daniels
    If you want to install a custom php version you can do it at your own risk using information from the following article:
    https://support.plesk.com/hc/en-us/articles/115000497853-How-to-add-a-custom-PHP-version-

     

    0
    Comment actions Permalink
  • Avatar
    Paul Daniels

    Thank you for the link. I’m somewhat nervous to do this so instead I think we will upgrade our old websites. 

    0
    Comment actions Permalink
  • Avatar
    Patrick Presky

    Hallo, 

     

    Ich habe einen Ubuntu Server von 18.04 auf 20.04 Upgrade durchgeführt.

     

    Plesk Update funktioniert leider noch nicht, ich bekomme folgende Fehlermeldungen. Vielleicht könnt ihr mir einen Tip geben? Danke!

     

    Installation started in background
    Auflösung der Paketabhängigkeiten wird geprüft.
    Reading package lists...
    Building dependency tree...
    Reading state information...
    E: Unable to locate package pp18.0.36-bootstrapper:amd64
    E: Couldn't find any package by glob 'pp18.0.36-bootstrapper'
    E: Couldn't find any package by regex 'pp18.0.36-bootstrapper'
    E: Unable to locate package sw-engine-cli-3.36:amd64
    E: Couldn't find any package by glob 'sw-engine-cli-3.36'
    E: Couldn't find any package by regex 'sw-engine-cli-3.36'
    E: Version '14081815-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'libapache2-mod-aclr2-psa' was not found
    E: Version '1.0.10-ubuntu.20.04.210430.1632' for 'libaps' was not found
    E: Version '1.2.0.1-ubuntu.20.04.210430.1632' for 'liblog4cplus' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'libpam-plesk' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210527.1645' for 'plesk-backup-utilities' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'plesk-completion' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.1022' for 'plesk-control-panel' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.2213' for 'plesk-core' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.1455' for 'plesk-core-utilities' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'plesk-engine' was not found
    E: Version '2.0.2-ubuntu.20.04.210430.1632' for 'plesk-librdbmspp' was not found
    E: Version '0.2.4-ubuntu.20.04.210430.1632' for 'plesk-lmlib' was not found
    E: Version '1.0.2-ubuntu.20.04.210430.1632' for 'plesk-platform-runtime' was not found
    E: Version '18.0.36.0-v.ubuntu.20.04+p18.0.36.0+t210604.2213' for 'plesk-release' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.1022' for 'plesk-repair-kit' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210603.0848' for 'plesk-service-node-utilities' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210603.2004' for 'plesk-task-manager' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.1022' for 'plesk-ui-library' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210601.0902' for 'plesk-web-hosting' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'plesk-web-socket' was not found
    E: Version '18.0.36-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa' was not found
    E: Version '3.36.0-ubuntu.20.04.210525.1226' for 'psa-autoinstaller' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.2213' for 'psa-locale-base-en-us' was not found
    E: Version '5.1.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa-phpmyadmin' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa-vhost' was not found
    E: Version '5.11.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'sw-collectd' was not found
    E: Version '2.9.0-v.ubuntu.20.04+p18.0.36.0+t210602.1308' for 'sw-cp-server' was not found
    E: Version '3.36.0-ubuntu.20.04.210430.1632' for 'sw-engine' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210604.2213' for 'plesk-l10n' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'plesk-mail-mc-driver' was not found
    E: Version '1.3.7a-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa-proftpd' was not found
    E: Version '2.3.9.5-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'libapache2-mod-fcgid-psa' was not found
    E: Version '1.8.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa-php-configurator' was not found
    E: Version '18.0-v.ubuntu.20.04+p18.0.36.0+t210526.1459' for 'psa-firewall' was not found



    Installation wird nicht fortgesetzt
    Error: Die Ausführung von apt-get ist fehlgeschlagen. Fehlermeldung:
    Es wurden nicht alle Pakete installiert.
    Rufen Sie https://support.plesk.com/ auf, um eine Lösung für dieses Problem zu finden.

    0
    Comment actions Permalink
  • Avatar
    Tony

    thanks George Alibegashvili for the information in April that "Support for Atomic ruleset for Ubuntu 20.04 in Plesk is planned but not implemented yet."

    Do you have any additional information on the timeline to support the Atomic ruleset? 

    0
    Comment actions Permalink
  • Avatar
    George Alibegashvili

    Hello Tony 

    Support for Atomicorp ModSecurity on Ubuntu 20.04 is planned to be implemented during the fourth quarter of 2021 (Q4 2021).To be up to date with the information on this matter, monitor the Plesk Change Log page:
    https://docs.plesk.com/release-notes/obsidian/change-log/ 
    As soon as the support for Atomicorp ModSecurity on Ubuntu 20.04 is done, the corresponding message will be published.

    1
    Comment actions Permalink

Please sign in to leave a comment.

Have more questions? Submit a request

Related articles