The knowledge base covers common enterprise issues involving Active Directory, Windows Server, networking, virtualisation, databases, backup and storage, with practical guidance for production environments.
Topics include identity and access, connectivity, server platforms, virtual desktops, data protection and legacy-system operations, allowing teams to locate guidance by incident scenario.
Practical infrastructure topics for managed IT: networks, Windows Server, AD/GPO, VMware, VPN/SD-WAN, firewalls, Veeam, NAS permissions, factory network upgrades and legacy migrations.
Windows LAPS generates, stores and rotates a unique local administrator password for each domain device, with authorised retrieval and auditing.
Read article →The Active Directory Recycle Bin can restore objects deleted after it was enabled, retaining most attributes. Enable it in advance and test recovery.
Read article →Missing SYSVOL and NETLOGON commonly indicates incomplete DFSR initial sync, replication failure, database trouble or an incorrect recovery action.
Read article →When SQL Server stops during start-up, read ERRORLOG and Windows events first, then check the service account, start-up parameters, system databases, storage and patching.
Read article →Recovery Pending and Suspect mean recovery could not complete. Protect files and logs, investigate I/O, space, permissions and error codes, then choose restore or repair.
Read article →Hyper-V checkpoints depend on the original host and storage. Independent backups must prove application consistency, off-host copies, recovery time and regular restore testing.
Read article →A Veeam Hardened Repository uses Linux, single-use credentials and immutability to reduce deletion risk, but still requires isolation, monitoring and recovery testing.
Read article →Before replacing a degraded RAID disk, confirm array, slot, serial number, backup and controller health, then monitor rebuild to avoid wrong-disk removal and secondary failure.
Read article →UPS shutdown must follow battery runtime, workload dependencies and start order: stop applications and VMs first, then hosts and storage, and prove the sequence in a power-loss drill.
Read article →Servers should use supported antimalware controls, but exclusions must follow role and vendor guidance, with minimum scope, current documentation and performance validation.
Read article →A successful gpupdate only confirms policy processing completed; it does not prove the intended GPO was applicable. Review gpresult, OU placement, filters, denial reasons…
Read article →Missing GPO drive mappings commonly result from user/computer context errors, item-level targeting, network readiness, credential conflicts, an unreachable share, or insufficient…
Read article →Repeated lockouts usually come from an endpoint, service, scheduled task, mapped drive, or mobile device that continues to submit stale credentials.
Read article →Domain-controller replication failures affect accounts, passwords, GPOs, and sign-ins. Start with replication summaries and error codes, then verify DNS, sites, RPC, time, and…
Read article →Kerberos is sensitive to clock skew. Verify the PDC Emulator time source, domain hierarchy, virtualisation time, NTP reachability, and firewall return path.
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