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.
Managed IT should not be priced only by PC count. Inventory networks, servers, Active Directory, VMware, backup, permissions and remote access first, then define remote/on-site frequency, change windows, SLAs, documentation and project boundaries.
Read article →A factory network should not rely only on different IP subnets. Define office, production, server, wireless and management boundaries, then enforce required access with VLANs, routing, firewall policy and ACLs while preserving rollback paths.
Read article →Core-switch replacement is more than copying configuration. Verify VLANs, trunks, gateways, STP, link aggregation, optics, routing, ACLs, DHCP relay and uplink relationships, then execute staged validation with a defined rollback plan.
Read article →Do not disable broad firewall rules in one step. Inventory real traffic, sources, destinations and ports plus AD/DNS/ERP/SQL/SMB/VDI dependencies, then introduce precise rules, observe logs and shrink the catch-all rule in controlled stages.
Read article →An infrastructure health check should cover networks/firewalls, Windows Server, AD/DNS, VMware, storage, Veeam/backup recovery, NAS permissions and documentation, then prioritize remediation by business impact, failure likelihood and recovery difficulty.
Read article →SQL Server 2016 reached the end of extended support on 14 July 2026. Assess security, application compatibility, downtime and rollback before choosing an upgrade schedule.
Read article →Windows Server 2016 reaches the end of extended support on 12 January 2027. Inventory roles, applications, hardware, licensing, backups and downtime well in advance.
Read article →Windows 10 support ended on 14 October 2025. Validate hardware, business applications, drivers, Group Policy, VPN clients and peripherals before broad Windows 11 deployment.
Read article →Windows 11 24H2 requires SMB signing by default. Older NAS appliances, Samba releases and incomplete implementations can fail authentication or negotiation.
Read article →vSphere 7 reached end of general support on 2 October 2025. Evaluate hardware compatibility, licensing, backup, networking, storage and team capability before deciding.
Read article →Prefer a new Windows Server 2025 domain controller, replication validation, FSMO transfer and controlled demotion of the old DC rather than defaulting to in-place upgrade.
Read article →Assess instance-level objects, compatibility levels, drivers, business regression, data synchronisation, cutover windows and rollback triggers separately.
Read article →A tightly isolated network can resolve approved vendor namespaces through conditional forwarders while restricting outbound DNS, logging change and validating failover.
Read article →SERVFAIL means the resolver could not complete the query. Check authoritative data, forwarders, TCP/UDP 53, DNSSEC, timeouts and cache in sequence.
Read article →AD-integrated zones can replicate, but conditional forwarders, server forwarders, root hints, cache and firewall paths still require separate verification.
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