Describe the issue: NTP is no longer supported for RHEL 8 and chrony is enabled by default. This has to be mentioned in the section '1.2.4. Network Time Configuration' => '1.2.4.2. Configuring time synchronization using Network Time Protocol' Currently its not mentioned and the user might consider these for RHEL 8 as well. Reference link : https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_basic_system_settings/using-chrony-to-configure-ntp#migrating-to-chrony_using-chrony-to-configure-ntp Suggestions for improvement: Add a statement making clear that the particular section is applicable only for RHEL7 and in RHEL8 ntp is no longer supported and chrony is enabled by default. Document URL: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/installation_guide/sect-prerequisites1#network_time_config Chapter/Section Number and Title: 1.2.4.2. Configuring time synchronization using Network Time Protocol Product Version: 3.5