Technologies explained

Plain-language overviews of 67 products IT professionals work with every day: what each one is, its key features, and where to learn more.

All Microsoft Copilot & agentsChatGPT, Claude & promptingMicrosoft 365 securityActive Directory & domain controllersEntra join, hybrid join & MDMMicrosoft 365 & collaborationIdentity & Zero TrustThreat detection & responseASD Essential EightAzure & multi-cloudBackup & disaster recoveryTeams Phone & VoIPServers & virtualisationNetworking & firewallsStorage, hardware & CCTVEmail securitySQL Server, databases & ERPPowerShell & automationService desk & IT operations

SAN, NAS & RAID storage

Various vendors, Storage, hardware & CCTV

Shared storage for servers and virtual machines, from small NAS boxes to Fibre Channel SANs.

  • RAID levels and when to use each
  • iSCSI and Fibre Channel, zoning and LUN masking
  • NAS shares with SMB and NFS
  • Capacity and performance planning

Best for: Designing reliable storage for virtualisation and backups.

Guides and scripts

CCTV & physical security systems

Various vendors, Storage, hardware & CCTV

IP cameras, NVRs and access systems that protect premises and need the same care as any network device.

  • Camera placement and retention planning
  • NVR setup and remote viewing
  • Network segmentation for cameras
  • Firmware updates and password hygiene

Best for: Securing offices, stores and warehouses.

Guides and scripts

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