Advanced Linux Skill Sheet

quick sysadmin guide Linux tuning and best practices, cron, ttys systemd ( quick all useful / cheat memorize ) linux networking ( Ubuntu/RHEL Server ) grub, mbr, efi, bios, etc Kerberos / AD / PAM iostat, sar, vmstat, redirects, xargs lsof, fuser, ulimit, swap system calls, zombie, orphan procs, OOM lxd cgroups performance tuning performance monitoring

taskset numactl

/proc /sys

setfacl sticky bit suid/sgid

SELinux AppArmor

process group session

IPC Memory Management kernel stuff drivers / modules