Recently I had installed the KernelCare extension for Plesk which seemed an useful addition to a server. All seemed to be well until I started to receive an email from the server every four hours a month after enabling the extension.
The message had the subject “Cron <root@tatooine> /usr/bin/kcarectl --auto-update” with the simple message “The IP xxx.xxx.xxx.xxx was already used for trialing on *date*”.
On investigation I found that the extension required a monthly subscription. Albeit not a large amount I felt that everything was running fine as it was so I decided to disable the extension.
However, still the notifications came. I then tried to re-enable the extension and disable the auto-update feature. This didn't help. Finally I deleted the extension and still the emails came!
Now this has been driving me nuts but I finally stumbled on this topic in the Plesk forums which although didn't have the full solution lead me on the right path.
By running the following command I was able to see that KernelCare itself had not been removed:
yum list installed | grep kernelcare
So all I did was run the following command:
yum remove kernelcare
This completely removed KernelCare, stopped the emails and restored my sanity!comments powered by Disqus