System Administrator

Work by hand through what happens in front of a server every day. Install packages, connect with a key and move files, write one fstab line exactly right, handle RAID, LVM and iSCSI by the procedure, work with qcow2 images and rootless containers, and finish a backup with a restore rehearsal. At the end you calculate, in numbers, when to order more capacity and when to stop a change.

코스

• Package Management — What happens behind one install command.
• SSH and File Transfer — Connect with a key, move files safely, dig a tunnel.
• Storage and Mounts — One fstab line saves or kills your boot.
• Storage in Practice — RAID, Snapshots, iSCSI, fio — Keep the data when a disk dies or a change goes wrong
• Virtualisation with QEMU/KVM — A qcow2 backing chain is what makes a golden image.
• Running Rootless Podman — No daemon, no root, still containers.
• Backup and Restore — Without a restore rehearsal it is not a backup.
• Capacity Planning and Change Management — Calculate When It Fills, Write Down When to Stop — Order-by dates, abort times, measured RPO and RTO
• RHEL-Family Administration — dnf, rpm, createrepo — and unit files.