Articles
Deep-dives, troubleshooting guides, and how-tos.
~/articles/understanding-kerberos-aut..

Active DirectoryREAD
Understanding Kerberos Authentication in Active Directory
Kerberos is the backbone of authentication in every Windows domain. Understanding how it works and how it fails is essential knowledge for any AD administrator.
A
ADRIAN·29 June 2026~/articles/troubleshooting-dns-failur..
$ nslookup haglandgarcia.com
Server: 192.168.1.1
Non-authoritative answer:
Name: haglandgarcia.com
Address: 172.67.152.192
DNSREAD
Troubleshooting DNS Failures in Windows Environments
DNS failures are one of the most common causes of network outages. This guide walks through a systematic approach to diagnosing and fixing DNS issues in Windows.
R
ROY·29 June 2026