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Ubuntu 20.04 support in Plesk

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George Alibegashvili
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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

21 comments

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  • 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

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  • 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 ?

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  • 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

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  • 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)
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  • 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

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  • 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
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  • Avatar
    Marc

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

    3
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  • 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

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  • Avatar
    Marc

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

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  • 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. 

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  • Avatar
    Marc

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

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  • 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"

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  • Avatar
    Computer-Treff

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

    0
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  • Avatar
    George Alibegashvili

    Hello @Stephan

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

     

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  • 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.

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  • 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

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  • 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

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  • Avatar
    Paul Daniels

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

    0
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  • 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-

     

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  • 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. 

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  • 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.

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