Is it possible to upgrade CentOS version on the server running Plesk?




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    Miha Gregorš


    today during the night, Plesk upgrade CentOS 7.4 to 7.5 on our servers. After that, we notice some multiple issue related to php.The servers wan't restarted yet.

    1.) Example: Wordpress update didn't work. There was an error:

    Downloading update from…
    Download failed.: cURL error 6: Could not resolve host:; Name or service not known
    Installation Failed

    2.) Example: Error on some Magento page in some API call:
    Exception message: API call to senders/domains failed: Could not resolve host:; Name or service not known

    After restarting/reloadin php-fpm all that errors disappeared. Any idea how to prevent this kind of trouble?

    Regards, Miha



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    Ivan Postnikov

    @Miha, the issue you faced is described in the following article.

    The issue is not expected to reoccur. 

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