I noticed that my server is running 3.10. How can I update it to 4.18?
kernel-4.18 is usually reserved for RHEL 8.x systems, but CloudLinux offers a hybrid kernel that can be used to take advantage of kernel improvements.
CloudLinux 7 Hybrid Kernel is an EL8-based (4.18) kernel compiled for CloudLinux OS 7.
Instructions on how to convert to the hybrid kernel can be found in the following link: