6 guides
Set up Hyper-V Replica the right way: configure the Replica server, enable replication, run test and planned failover, and fix the errors that trip people up.
Enable the Active Directory Recycle Bin and recover deleted users, groups, and OUs with Restore-ADObject or ADAC. Learn the prerequisites and why enabling is permanent.
Back up ESXi VMs the right way: why free ESXi blocks most backup tools, how snapshot-based backups work, ghettoVCB and OVF export, and why snapshots aren't backups.
Back up and restore Proxmox VMs with vzdump: snapshot vs suspend vs stop modes, scheduled jobs, storage targets, restoring to a new VMID, and retention rules.
Protect your domain with a proper Active Directory system state backup. Learn wbadmin backups, DSRM, authoritative vs non-authoritative restore, and why snapshots aren't enough.
Pillar Guide
Learn the 5 FSMO roles, when to transfer them gracefully vs seize them after a DC failure, and how to do both with ntdsutil and PowerShell — safely.