Chapter 20. Shells and command-line tools

The perl(Mail::Sender) module has been removed

The perl(Mail::Sender) module is removed from RHEL 10 without any replacement. As a consequence, the checkbandwidth script from net-snmp-perl package does not support email alerts when bandwidth high/low levels for a host or interface are reached.

cgroupsv1 is a removed functionality in RHEL 10

cgroups is a kernel subsystem used for process tracking, system resource allocation, and partitioning. In previous versions, systemd service manager supported booting in the cgroups v1 and in cgroups v2 mode (with v1 as the default in rhel8 and v2 as the default in rhel9). In Red Hat Enterprise Linux 10, systemd will nolonger support booting in the cgroups v1 mode; only cgroups v2 mode will be available.