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Laptops & DesktopsServers

Data Flow – Windows AD DNS with Conditional Forwarders

Here’s a simplified breakdown of the data flow that occurs when a client computer in an Active Directory (AD) environment...
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Laptops & DesktopsServers

Data Flow – DNS Resolution with AD and F5 BIG-IP DNS

1. Local Cache Check: You attempt to access a website (say, `app.lb.cordero.me`) on your Windows AD-managed laptop. Your operating system...
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Laptops & DesktopsRouting & Switching

Troubleshooting – Finding Laptop with only the DNS Name

Finding the switch port that a laptop is connected to with just its DNS name requires a few more steps...
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Routing & Switching

Troubleshooting – Finding Laptop with only the IP Address

If you have access to the Cisco switch and know the IP address of the laptop, you can identify the...
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Security

Upgrade Palo Alto Firewalls with Panorama (Internet-connected)

The process to upgrade firewalls when Panorama is Internet-connected involves several steps:   Review the PAN-OS 10.2 Release Notes: Understand...
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Security

Upgrade Palo Alto HA (High Availability) Firewall Pair

Step-by-step process to upgrade an HA (High Availability) firewall pair to PAN-OS 10.2. Here’s the summarized procedure:   Review the...
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Routing & Switching

Policy and Procedure – Upgrading Nexus 9000 NX-OS Operating System with Minimal Downtime

Upgrading Nexus 9000 NX-OS Operating System with Minimal Downtime Policy Statement This policy establishes the procedure for upgrading the Nexus...
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Servers

Policy – Server Infrastructure Monitoring (Example)

Policy Name: Server Infrastructure Monitoring Policy Effective Date: May 24, 2023 Last Revised: May 24, 2023   Policy Statement: This...
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CloudData CenterLoad BalancingRouting & Switching

Policy – Network Device Monitoring (Example)

  Policy Name: Network Device Monitoring Policy Effective Date: May 24, 2023 Last Revised: May 24, 2023   Policy Statement:...
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Laptops & DesktopsSecurityServers

Architect – Support Management (Help Desk / Service Desk)

Building out a proper help desk with different levels and delegated alerting is critical for several reasons: Efficient Use of...
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • AWS Well-Architected Framework
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
    • Palo Alto PCNSE Study Guide
  • IP Calculator
  • Links
  • Contact

Categories

  • AI
  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack DDOS Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Microsoft IIS Microsoft SQL Microsoft Windows Netflow OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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