Step-by-step guides and fixes for server administrators: cPanel, DirectAdmin, Windows Server, email, DNS, security and more. Free to read, tested on real servers. Press / to search.
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VPN MTU Fragmentation: Fixes for Slow VPN Throughput
Find the real path MTU with ping and tracepath, spot ICMP black holes and PMTUD failures, set the right MTU and MSS clamping on WireGuard, OpenVPN and IPsec tunnels on Linux and pfSense, and measure the throughput gain with iperf3.
September 29, 2026
Group Policy Not Applying: 12 Checks with gpresult and Events
A systematic way to find out why a GPO does not reach a Windows 11 client or Windows Server 2025 member: read gpresult, check scope and filtering, decode the Group Policy events, compare AD and SYSVOL versions and turn on gpsvc debug logging.
September 29, 2026
Transfer FSMO Roles with PowerShell and ntdsutil: Safe Steps
How to move the five FSMO roles between domain controllers cleanly with Move-ADDirectoryServerOperationMasterRole, and how to seize them with ntdsutil when the old holder is gone for good, including the metadata cleanup you must do afterwards.
September 29, 2026
Set up a site-to-site WireGuard VPN between pfSense and OPNsense
Build a routed site-to-site WireGuard tunnel between a pfSense CE 2.9 firewall and an OPNsense 26.7 firewall, including key exchange, allowed IPs, interface assignment, static routes, firewall rules and a handshake check.
September 29, 2026
Set up Windows LAPS on Windows Server 2025 and Windows 11
Extend the schema for Windows LAPS, delegate password permissions on the OU, configure the policy with Group Policy, and retrieve or rotate local administrator passwords with Get-LapsADPassword on Windows Server 2025 and Windows 11.
September 29, 2026
A basic RMM monitoring policy for small-business endpoints: disk, patching and antivirus
A practical baseline monitoring policy for Windows endpoints in an RMM tool, with thresholds for disk space, patch age and Defender health, the PowerShell checks behind each monitor, and how to keep alert noise down.
September 29, 2026
Dcgpofix: Safely Reset the Default Domain Policy and DC Policy
When the Default Domain Policy or Default Domain Controllers Policy is corrupted or missing, dcgpofix recreates it with Windows defaults. Learn what it resets, what it never restores, how to back up first and how to put password, lockout, Kerberos and user rights settings back.
September 29, 2026
DISM RestoreHealth Offline Source: Windows 11 Repair
Run DISM RestoreHealth and SFC in the right order on Windows 11 and Windows Server, read the CBS and DISM logs, and repair the component store from a mounted install.wim when Windows Update cannot be reached.
September 29, 2026
Imunify360 After OS Upgrade: Recovery on Ubuntu and AlmaLinux 9
Repair Imunify360 after a do-release-upgrade, Debian major upgrade or ELevate run leaves the agent failing to start, using the deploy script's post-os-upgrade mode, repository fixes and verification of the firewall, WebShield and WAF.
September 29, 2026
Enable RDS session shadowing and allow non-admin users RDP access
Configure Remote Desktop session shadowing through Group Policy so helpdesk staff can view or control user sessions with or without consent, connect with mstsc /shadow, and grant non-administrators the right to log on through Remote Desktop and to shadow others.
September 29, 2026
Raise AD Functional Level Safely: Forest and Domain
What the Active Directory domain and forest functional levels actually gate, the checks to run before raising them, the PowerShell to do it, and the narrow window in which the change can still be rolled back.
September 29, 2026
Proxmox vs ESXi 9 for Hosting Providers: Best Choice in 2026
Compare Proxmox VE 9.2 and VMware ESXi 9.1 from a hosting provider's viewpoint, covering subscription and licensing models, storage and clustering options, built-in backup, tooling and automation, and what migrating VMs between the two actually involves.
September 29, 2026