Kerry CorderoPractical Network Engineering Notes
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CodeSecurityServers

API 101

What’s an API? API stands for Application Programming Interface. It’s a set of rules and protocols for building and interacting...
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Laptops & DesktopsServers

Find DNS TTL on Windows and MacOS

Sure, here’s how you can find the Time to Live (TTL) for a DNS record on Windows and MacOS. Please...
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Laptops & DesktopsLoad BalancingServers

F5 – HTTP(S) Status Code Verification

DO YOU HAVE TO HAVE SSL OFFLOAD TO GET STATUS CODE SSL offloading, often performed by a load balancer or...
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Servers

Designing Windows AD DNS for Multi-Site Environments

Designing Windows Active Directory DNS (AD DNS) for a multi-site company is a process that should balance a few crucial...
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Load BalancingServers

Data Flow – F5 HTTP/S Root (Apex) Redirect to Subdomain and How DNS Works

SCENARIO F5 Redirect Setup for Root (Apex) to WWW (cordero.me > www.cordero.me) Root (Apex) “cordero.me” IP = 10.1.1.1 WWW “www.cordero.me”...
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Servers

Microsoft SQL AG Cluster Optimal Multi-Site Failover Settings for “RegisterAllProvidersIP”, “HostRecordTTL”, and “MultiSubnetFailover”

To achieve optimal performance in SQL Server AlwaysOn Availability Groups, especially for a rapid failover in a multi-subnet environment, it’s...
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Laptops & DesktopsRouting & SwitchingSecurityServers

Data Flow – CURL and HTTPS

Let’s go through the steps and data flow when using `curl` to make an HTTPS request and check for an...
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Servers

Powershell – Get HTTP(S) Status Code

(Invoke-WebRequest -Uri https://www.cisco.com -Method Get).StatusCode This command sends a GET request to the specified URL and then returns the HTTP...
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Load BalancingServers

HTTP(s) Redirects and DNS Redirects?

HTTP and DNS are protocols serving different purposes, and redirection via these two methods is fundamentally different. DNS Redirection: DNS...
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CodeServers

DNS Root (Apex) ANAME Records NOT CNAME Records

ANAME (Alias Name) records are a type of DNS record that allows you to alias one hostname to another, similar...
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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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