Kerry CorderoPractical Network Engineering Notes
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Laptops & Desktops

Business ManagementCloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

The Crucial Role of Vendor Relationships in IT Infrastructure Management

In a landscape as interconnected as Information Technology, the adage by John C. Maxwell, “Teamwork makes the dream work…” perfectly...
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Laptops & DesktopsSecurity

Quick way to host files using Kali

Sometimes when your in Kali you want a quick and easy way to share files.  One of the ways I...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

RFC 5735 – Special Use IPv4 Addresses

Before we dive into the specifics, let’s take a moment to revisit what RFCs are. Standing for “Request for Comments,”...
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Laptops & DesktopsServers

Using CURL to get HTTP/S Status Codes

curl -Is https://{SITE}.com | head -1 HTTP/2 200 curl -Is https://{SITE}.com/login.asp | head -1 HTTP/2 404 curl -Is http://{SITE}.com |...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

Evaluating IT Network Costs: OpEx, CapEx, and TCO

Cost consideration is an essential aspect when designing and implementing network architecture. Here, we delve into the three primary components...
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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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Laptops & DesktopsServers

DNS Forwarders vs Conditional Forwarders

First, let’s talk about the difference between a zone and a domain. There are several distinct zones in the DNS,...
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Laptops & DesktopsRouting & SwitchingServers

Data Flow – Laptop to Server Communication

The communication between a laptop and a server within a network involves a number of layers and protocols. Here’s a...
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Laptops & DesktopsServers

Ping Sweep on a Windows Device

Command Prompt: for /L %i in (1,1,254) do @ping -n 1 4.2.2.%i | find "Reply" Powershell: 1..254 | % {...
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Data CenterLaptops & DesktopsRouting & SwitchingSecurityWireless

Wireshark Filters

URL http.host == “api.cordero.me” DNS dns.qry.name == “www.cordero.me” dns.qry.name matches “.cordero.me” dns.qry.name contains “cordero.me” TCP Flags tcp.flags.reset == 1 tcp.flags.push...
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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
    • IP Calculator
    • RouteAgg
    • Subnet Breakout
    • 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) AI 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 PowerShell python QOS snmp Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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