systemd
On our RedHat Linux 7 systems, we move from SysV to systemd, which is used to control services.
From SysV to systemd
Writing systemd Units
systemctl daemon-reload
Service Units
Journalctl
journalctl -u<service>
journalctl –since “10 seconds ago”
Install Packages
Yum Repos
yum –enablerepo=mbristow-it-43.0rhel7da-LATEST clean metadata
RPM Builds