Kernel 3 and Red Hat Enterprise Linux 7 new Systemd implementation
Intro: Redhat and most major Linux distros such as Suse have adapted new Linux Kernel 3. Since release of Red Hat Enterprise Linux 7, Redhat replaces Linux Kernel 3 with the legacy kernel 2.6 in RHEL 6.7 and prior versions. Kernel 3 has improved handling of system services and runlevels. Kernel 2.6 System V "init" script for managing runlevels and "service", "chkconfig" commands for managing services have been replaced with "systemd" in Kernel 3. Essential Commands: I have collected a list of useful new commands to manage services, startup processes and runlevels for Linux Kernel 3. Starting a service Previously in RHEL 6 and prior: # /etc/init.d/auditd start Starting auditd: [ OK ] Now in RHEL 7: # systemctl start vsftpd.service Stopping a service Previously in RHEL 6 and prior: # /etc/init.d/vsftpd stop Stopping vsftpd: [ OK ] No