Kerry CorderoPractical Network Engineering Notes
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Kerry Cordero
JoinedMay 2, 2023
Articles701
20+ years of experience and proven performance in large scale enterprise network infrastructure architecture, design, implementation, migration, security, operation, troubleshooting, leading/managing teams, and budgets. I have a BS in Cybersecurity and a Master's from the University of Florida.
Data CenterRouting & Switching

Cisco Nexus 9000 Verified Scalability Limits

Security

Palo Alto Incomplete, Not-applicable, unknown, Insufficient data in the Application Field

Below are the entries you might see on the Palo and wonder what they mean: Incomplete Insufficient data Not-applicable unknown-tcp...
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Routing & SwitchingSecurity

HTTP2 and ALPN

HTTP/2 and ALPN are related in the context of secure web communications. When a web client (like a browser) and...
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Data Center

Design – Cisco ACI

When designing a Cisco ACI (Application Centric Infrastructure) solution, there are different deployment options available, each with its own pros...
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Security

PCI – Palo Alto Recommendation and Best Practices

Palo Alto Networks is a multinational cybersecurity company that is well known for its advanced firewalls and cloud-based offerings. Palo...
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Laptops & DesktopsServers

Microsoft Windows AD Force Intersite Replication and Force DNS Update

Intrasite and Intersite Replication in Active Directory: Intrasite Replication: This is the replication that happens within a site. By default,...
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Security

Palo Alto Command – Find Software Version for OS and GlobalProtect

I like to use commands because I find them easier to find information quickly. kcordero@PA5220-Primary(active)> debug swm list Product B...
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CodeSecurity

API Troubleshooting

Troubleshooting an API issue involves understanding the specific problem, checking logs, examining request and response data, and more. Here are...
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Security

Palo Alto – Understanding and Troubleshooting App-ID

The App-ID technology in Palo Alto firewalls is designed to identify the applications running on your network, regardless of the...
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Data CenterRouting & SwitchingSecurity

PCI – Cisco Recommendation and Best Practices

Cisco offers a broad range of networking devices, including routers and switches, that are used in various environments, from small...
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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 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 snmp Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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