PowerShell Remoting Auth: Kerberos vs NTLM vs CredSSP
A managed customer paged us last quarter. Their nightly PowerShell job hit a remote file server, then tried to copy from a third box. It failed every single night with…
Creating Enforced Authentication Policies in Active Directory
It was 03:14 when the SOC at one of our financial services clients flagged a Tier 0 admin credential authenticating from a workstation in the call center VLAN. The acc…
PowerShell JEA: Restricting Remote Admin Access
It was 11 PM on a Tuesday when the SIEM flagged a credential harvesting alert on a domain controller. Someone had launched Mimikatz from a PowerShell remoting session…
Configuring AD Audit Policies with PowerShell and GPO
Last year, a mid-size logistics company we manage came to us after discovering that a domain admin account had been compromised for over three weeks. The attacker used…
AD Server Parameter: FQDN vs NetBIOS Name Explained
While scripting a bulk user migration for a client last quarter, I hit one of those issues that wastes an hour before you realize what happened. Half the Get-ADUser ca…
AdExplorer: Browsing and Snapshotting Active Directory Offline
Three service accounts disabled in production. No change ticket. No record of who did it or when. The helpdesk was fielding calls for forty minutes before we traced th…
Backing Up and Restoring Group Policy Objects with PowerShell
After inheriting a manufacturing client’s Active Directory environment from another vendor last year, the first thing we discovered was that their Group Policy Objects…
Windows Group Policy Incident: A Real Post-Mortem
It was a Tuesday. 4:47 PM. My phone started ringing before I even got up from my desk. Help desk on line one, my manager on line two, and a Slack flood that would take…
Active Directory Security: Harden Your AD Environment
In March 2023, Cl0p operators compromised a regional financial services company and reached their domain controllers in 87 minutes. The initial vector was a spearphish…
Cybersecurity Naming Conventions: A Complete IT Guide
Cybersecurity naming conventions are standardized rules for labeling digital assets – including user accounts, firewall rules, log files, and security policies. Organi…
How to Manage DNS and DHCP: IT Admin Complete Guide
Related reading: GitHub Discussions: Community Engagement for IT Teams | IT Auditing in the Age of AI, IoT, and Zero Trust | Citrix NetScaler: Complete Admin Guide for…
Managing Active Directory Objects: A Complete Guide
Managing Active Directory objects is the core administrative task for any Windows domain environment. AD objects – including users, computers, groups, and contacts – f…
How to Raise the Active Directory Forest Functional Level
Raising the Active Directory forest functional level is one of those tasks that many administrators either delay indefinitely or rush through without adequate preparat…