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Crashkernel feature uses up a useful amount of memory which is needed by the system itself. Therefore it is best to disable this feature to save up more memory for the System in general. Here is an easy procedure to Disable crashkernel in CentOS.
Let's Encrypt has gained popularity because they offer free SSL for millions of websites all over the world. They are a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X. 509 certificates for Transport Layer Security (TLS) encryption free of charge. The certificate is usually valid for 90 days after which is expires pending when it is renewed.
Allowing your server disk to use all its disk space will help to improve the functionality and performance of your server in general. It is very common for unallocated disk space to be unused by default.
The most effective method of clearing up disk space via the inbuilt resources in CentOS. This Tutorial will show you how to free up space in your CentOS machine Safely and effectively without loosing vital files.
Netdata is very essential utility application which provides a real-time monitoring service for Linux systems and applications by displaying interactive charts which can be viewed via a web browser.
It is vital for you to check if your Linux memory is running low to help your server to stay optimized.