theadmincafe

Understand attacks.Harden systems.

A blog about IT security in Windows environments: how attacks work and what actually stops them.

Latest articleBuild Your Own 2FA for the Windows LogonHow a Credential Provider works and how to build a working TOTP 2FA for local Windows accounts in C++. With rate limiting, replay protection and logging.Windows, Sep 30, 2026, 44 min read

Articles by topic

Active Directory

9
The thing with LDAP, LDAPS and Active DirectoryAug 6, 2026Configure Kerberos ArmoringJul 28, 2025How NTLM works in Active DirectoryMay 7, 2025ADFS InstallationJan 27, 2025All 9 Active Directory articles

Windows

5
Build Your Own 2FA for the Windows LogonSep 30, 2026Configure Credential Guard for Computer AccountsJan 15, 2025Configure Credential GuardJan 13, 2025OSConfig - Security Settings for Windows Server 2025Jan 13, 2025All 5 Windows articles

Hack The Box

13
AdministratorNov 19, 2024GreenhornJul 24, 2024RunnerJul 20, 2024GhostJul 18, 2024All 13 Hack The Box articles

Exchange

3
Installation guide for Exchange 2019Jun 26, 2025Verbindung zu Exchange Online mit PowershellOct 23, 2023Exchange ServerOct 18, 2023

Linux

2
Install Tor Exit NodeSep 30, 2025Setting up notifications via Telegram for SSH login/logoffJun 1, 2024

Tools

1
ADTierKit: Automatic AD-TieringAug 6, 2026
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