Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

IP Subnets and DNS Name for Documentation Purposes

Certain IP addresses and domain names have been reserved for documentation purposes to avoid conflicts with valid addresses in actual...
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Code

Streamline API Testing with .http Files in Visual Studio Code

If you’re a developer working with APIs, web services, or any HTTP-based communication, having a reliable and efficient way to...
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Routing & Switching

ECMP vs. Layer 3 Port Channels: Choosing the Right Load-Sharing Design

When two Layer 3 devices need multiple physical links for redundancy and load sharing, the design is not simply a...
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Routing & Switching

QOS – Why More Bandwidth Doesn’t Fix Bad Network Design

The Common Misconception “We don’t need QoS — we’ll just upgrad our links.” That’s a common but dangerous mindset. QoS...
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Routing & SwitchingSecurity

Navigating VPN Tunnel Timeouts: Strategies for Maintaining Secure and Stable Connections

In today’s digital age, establishing secure connections over untrusted networks has become paramount for organizations worldwide. Virtual Private Networks (VPNs)...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

What is Ansible and What Are the Format Options Like YAML

Ansible is an open-source software automation platform written primarily in Python. Known for its simplicity and agentless architecture, It has...
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Cloud

Optimizing AWS Glacier Storage: Strategies for Managing Small Files

AWS Glacier offers an incredibly cost-effective solution for long-term data archival, appealing to organizations seeking to minimize cloud storage expenses....
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CloudData CenterRouting & SwitchingSecurityServers

AAA (Cisco Device and ISE Specific)

When discussing AAA (Authentication, Authorization, and Accounting) in the context of ISE (Identity Services Engine) and Cisco devices, it’s essential...
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Business ManagementCloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

The Crucial Role of Documentation and Diagrams in IT Infrastructure Projects

In today’s rapidly evolving IT landscape, deploying new components like firewalls demands more than technical know-how. Effective knowledge transfer mechanisms...
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Routing & Switching

mDNS in the Enterprise: Risks, Real-World Impact, and How to Control It

On this page Overview Key Risks of mDNS in Enterprises Enterprise Impact Example (University Test) Prevention & Mitigation Methods Best...
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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
  • Tools
    • Car Calculator
    • RouteAgg
    • IP Calculator
    • VSLM
  • 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 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 snmp Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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