[ KNOWLEDGE_BASE :: NET & AD ]

IT Knowledge, Straight From the Trenches_

Real-world guides on Active Directory, DNS, Firewalls, Kerberos, and more, written by engineers who live it daily.

Active DirectoryDNSFirewallGPOKerberosNetworkingPKI
haglandgarcia -- bash
> Initializing network stack[OK]
> DNS resolver check[ACTIVE]
> Active Directory schema[LOADED]
> Kerberos KDC reachable[OK]
> Locale packs [en_US, es_ES][LOADED]
> Firewall ruleset v4.2.1[ARMED]
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STATUS:OPERATIONAL//ARTICLES:2//VIDEOS:1//TOPICS:7//LOCALES:EN+ES//LAST_PUBLISH:29/06/2026//
[ 01 :: LATEST_ARTICLES ]

Latest Articles

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Understanding Kerberos Authentication in Active Directory
★ FeaturedActive Directory

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.

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ADRIÁN·29 June 2026
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[ 02 :: VIDEO_FEED ]

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[ 03 :: OPERATORS ]

Meet the Authors

// OPERATOR_01ONLINE
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Roy Hagland

Networking

Roy is a networking specialist with expertise in DNS, firewalls, routing and network security.

// OPERATOR_02ONLINE
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Adrián Míguez García

Active Directory

Adrián is an Active Directory specialist covering AD DS, GPO, Kerberos authentication, PKI and identity management.