Plesk for Linux kb: how-to ABT: Group B
- Plesk for Linux
Is it possible to install Plesk on Ubuntu 20.04?
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;
- Ubuntu 20.04 LTS is no longer supported on the ARM architecture, use Ubuntu 22.04 LTS instead.
- 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.
See also Plesk Supported Operating Systems
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
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 ?
>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
Ich bekomme nach der Neuinstallation folgende Meldung:
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
Work on this is still in progress.
According to the Plesk Premium Email extension page, Plesk Premium Email does not support Ubuntu 20.04 yet. It supports the following operating systems:
Wir haben jetzt 18.0.32, wann denkt Ihr, wird das dist-upgrade von Ubuntu 18 auf 20 möglich sein?
Has the upgrade process between Ubuntu 18 to Ubuntu 20 been finished? Or is there any estimate when it will be?
Thanks in advance
Any news would be great, when it is planned to have it running.
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.
Great news, thanks a lot for your note and work.
Ubuntu 20.04 now Supported by Atomic?
Lines 812 - 815:
"elif egrep -q "Focal" $RELEASE ; then
Is there a timeframe when psa-watchdog will become available with TLS 1.2?
Support for Atomic ruleset for Ubuntu 20.04 in Plesk is planned but not implemented yet.
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.
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
Hello @Paul Daniels
Modern OS as Ubuntu 20 supports PHP versions starting from 7.1.
To install PHP versions provided by Plesk, visit this KB article:
Thank you. Is there no way I can install PHP5x under Ubuntu 20.04. Even manually?
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:
Thank you for the link. I’m somewhat nervous to do this so instead I think we will upgrade our old websites.
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!
thanks @... 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?
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:
As soon as the support for Atomicorp ModSecurity on Ubuntu 20.04 is done, the corresponding message will be published.
any News on „ Support for Atomicorp ModSecurity“?
Your last info was „Planned for Q4/21“…
I clarified and Atomic (tortix) ModSecurity rule set is not supported in Ubuntu 20.04 yet.
Currently, I do not have ETA. To be up to date with the information on this matter, monitor the Plesk Change Log page:
Any update on the Atomic (tortix) ModSecurity rule set? Should we install 'aum' ourself? Atomic writes that it works on Ubuntu 20: https://forums.atomicorp.com/viewtopic.php?t=8954
I am also still very interested in the topic "Atomic (tortix) ModSecurity rule set".
With ubuntu 18.04 we are slowly but surely approaching EOL.
Will the Atomic (tortix) ModSecurity rule set Advanced (purchased through Plesk) be available for (at least) ubuntu 20.04 before EOL of 18.04?
Atomicorp (tortix): https://support.plesk.com/hc/en-us/articles/360020552780?page=1
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