CentOS 8/RHEL 8 support in Plesk

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  • Avatar
    Mitchell van Bijleveld

    Is Docker supposed to be supported later or is this never going to work and only remotely?

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    Ivan Postnikov

    Hello Mitchell van Bijleveld

    Yes, it's going to be available. Work on it is currently in progress.

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    Peter

    Do we know of a time frame for when Advanced ModSecurity Rules by Atomicorp, will be available for usage? A rough estimate.

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    Anton Maslov

    Hi Peter, the ball is on Atomicorp side. As soon as they add support for RHEL/CENTOS 8 we will be able to use it in Plesk. To clarify ETA you may want to reach them here. Meanwhile I do recommend to use Comodo. 

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    Dennis Am

    Docker now works on CentOS 8 (since Docker extension version 1.4.6): https://docs.plesk.com/release-notes/obsidian/change-log/#docker-1.4.6

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    Anton Maslov

    Hi Dennis, updated article by removing Docker from known issues, thank you noticing!

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    Mitchell van Bijleveld

    Only the remote docker functionality. Docker managing on the server is still not available.

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    Peter

    The extension seems to work, i cannot however add the Docker server. 

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    GK (Edited )

    Hi,

    Thanks for the good work. I know the big difference between EL7 and EL8 (for example the dnf modules). We always used the official MariaDB (not the redhat ones) packages for the DB on EL7. On EL8 this doesn't work anymore:

    Problem 1: package plesk-backup-utilities-18.0-2.centos.8+p18.0.25.2+t200325.1928.x86_64 requires plesk-mysql-server >= 18.0, but none of the providers can be installed
    - package plesk-mysql-server-18.0-2.centos.8+p18.0.24.0+t200128.1353.noarch requires mariadb-server >= 5.0.60, but none of the providers can be installed
    - conflicting requests
    - package mariadb-server-3:10.3.17-1.module+el8.1.0+3974+90eded84.x86_64 is excluded

    I understand the message because we had to disable the mariadb module because we wanted to use the MariaDB packages.  Right now:

    MariaDB-common-10.3.22-1.el8.x86_64
    MariaDB-server-10.3.22-1.el8.x86_64
    MariaDB-client-10.3.22-1.el8.x86_64

    Fix:

    Adding the official MariaDB packages to the required list in the RPM is very easy (did it myselves a couple of times). Check https://rpm.org/user_doc/boolean_dependencies.html . With this trick you can have a dependency on mariadb-server AND MariaDB-server.

     

     

     

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    Karl May

    I would like to use CentOS 8 soon, so I check this article regularly. I am mainly interested in whether Atomic now supports ModSecurity. If you update the page, which contains a list of problems, it would be nice to know if you have removed or added items. I can only see that a change has been made to the article, but not what exactly.

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    Francesco Zanti

    Some questions about Docker: I know that Red Hat 8 (and so CentOS 8) supports Podman, instead Docker. 

    Will be there ripercussions on Plesk after this change?

    Is there any Eta for Plesk container support (not only remote) on CentOS 8?

    Finally: could I install Podman / Docker on CentOS 8 + Plesk or there will be some bug / crash?

    Thanks in advance.

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    Sebastian Ayala

    I performed a migration from an old server with Centos 7 to Centos 8 today. Some options related to mod_bw are still displayed in the service settings.
    Is this a bug? Is there a way to remove them?

     

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    Francisco Garcia

    Hi Francesco Zanti,

    It's the first time I hear about Podman, and I'm not aware of anything regarding this in Plesk.

    I encourage you to create a UserVoice request.

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    Francisco Garcia (Edited )

    Hi Sebastian Ayala,

    This happens because, on CentOS 8, your Plesk installation has mod_bw. It's expected, and if you don't want it the only way is to remove such component.

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    Francesco Zanti

    Hi Francisco Garcia,

     

    thanks for your support: Would Docker be supported with CentOS 8 in next release? Could I safely install Docker on the same server of Plesk?

    I will create a UserVoice!

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    Karl May (Edited )

    > Atomic did not yet release their ModSecurity rules compatible with CentOS 8/RHEL 8, since it is not available for selection at Tools & Settings > Web Application Firewall > Settings

    What exactly does that mean? atomicorp community support said:

    > The rules are supported on any platform that supports modsecurity, that includes Centos 8.

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    Adrian Chan

    Hi,

    Pls advise if EPEL and Remi Repository can be installed on Centos 8/Plesk

    https://webhostinggeeks.com/howto/how-to-enable-epel-and-remi-repository-into-centos-6/

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    Ivan Postnikov

    Hello Adrian Chan

    On servers with Plesk it's recommended to use repos provided by Os vendor only. Otherwise, this may lead to dependency issues during Plesk updates or components installation.

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    Ivan Postnikov

    Hello Karl May

    Sorry for the late response.

    Let me double-check this.

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    Ivan Postnikov

    @Karl May,

    According to Atomicorp support, RHEL 8 is already supported and they have plans to add CentOS 8 support later this year.

    Thank you for bringing this to our attention, stay tuned for the changes in this article.

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    Nico Timeo

    After a succesfull install of Plesk Obsidian 18.0.27 on a fresh and updated CentOS 8 system, I can't login to Plesk for a "Connection Refused" error.

    Command "iptables -F" resolves the problem. Why this occours? How can I solve this problem?

    Thanks in advance!

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    Nico Timeo

    After a succesfull automatic install of Plesk Obsidian 18.0.27 (via SSH) on a fresh and updated CentOS 8 system, I can't login to Plesk for a "Connection Refused" error.
    This is the output for iptables, after Plesk installation:

    # iptables -L
    Chain INPUT (policy ACCEPT)
    target prot opt source destination
    ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
    ACCEPT icmp -- anywhere anywhere
    ACCEPT all -- anywhere anywhere
    ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh
    REJECT all -- anywhere anywhere reject-with icmp-host-prohibited

    Chain FORWARD (policy ACCEPT)
    target prot opt source destination
    REJECT all -- anywhere anywhere reject-with icmp-host-prohibited

    Chain OUTPUT (policy ACCEPT)
    target prot opt source destination

    As you can see, there is no entry for httpd, so connections on port 80 and 443 are refused.
    I tryed also witch web installation, and same problem occuorred.

    Command "iptables -F" resolves the problem. What's wrong?
    I can add an iptables rule manually, ...and then?

    Thanks in advance!

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    Anton Maslov

    Nico Timeo to manage it in a nice way and store permanently please install and enable Firewall module:

    https://support.plesk.com/hc/en-us/articles/115001078014--How-to-manage-local-firewall-rules-on-a-Plesk-for-Linux-server

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    Razvan Rosca

    Any support for cGroups on CentOS 8? RHEL/C8 fully supports cGroups.

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    Abdullahfahim

    Plesk's Firewall module isn't as flexible as manual nftables/iptables rules so make sure to backup any rules before you enable it.

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    Lev Iurev

    @Razvan Rosca as I can see the questions was addressed in the ticket

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    Karl May

    @Ivan Postnikov

    Is there any news about Atomicorp and Modescurity yet? I would like to rent a new CentOS 8.2 server and use "Atomic Advanced" there.

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    Julian Bonpland Mignaquy

    Karl May There are still no issues about Modsec on Centos 8. Please monitor this article for future changes https://docs.plesk.com/release-notes/obsidian/change-log/

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    Benjamin Noack (Edited )

    Seems that Backup Task limitation dont work under CentOS 8,

    I've limited to 4 Backup Tasks at the same Time, but "top" says 12 backupmng are running. I've set it up to not compress the backups

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    Benjamin Hodgetts

    Any news on KernelCare? They have a blog post from last year claiming support for CentOS 8 - https://blog.kernelcare.com/kernelcare-supports-centos-8-automated-live-patching

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