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Servers

VARs and Vendor Relationships – End of Life (EOL) Hardware in the Data Center – Hardware Life Cycle – Asset Management

Having a VAR and/or Vendor relationship is very important from a business perspective. Building that relationship is one of the...
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Laptops & Desktops

Eve-NG MacOS Error – Could not create a new process and open a pseudo-tty.

[Command not found: telnet] [Could not create a new process and open a pseudo-tty.] When I was using my Macbook...
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Data CenterRouting & Switching

Microsoft – Experiences with BGP in Large Scale Data Centers

Data CenterRouting & Switching

Facebook – Running BGP in the Data Center at Scale

Laptops & DesktopsSecurity

Kali VMWare Error – Guest operating system ‘debian 10-64’ is not supported

If you’re getting this error: Below is the fix: While your VM is off, you need to go into your...
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Servers

Types of HTTP Error and Status Codes

It’s important to know your HTTP error codes even if you’re a network engineer. You don’t need to memorize them...
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Security

TLS and SSL version along with Windows Disabling/Enabling Versions for IIS, SQL, .NET

Let’s first go over TLS and SSL versions....
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Laptops & DesktopsServers

Windows NTP – NT5DS and FSMO

Another good topic to talk about. I’ll blog soon about NTP in general when it comes to stratums and a...
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Security

Okta MFA O365 Email – Do Not Use Basic Auth

Basic Auth – requires only username/password and not compatible with 2-step authentication  (LEGACY – Bypasses MFA requirements)...
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Data CenterRouting & Switching

Cisco – Min and Max Fiber Signals dBm

You’ll want to know what a good Fiber dBm is when troubleshooting networks. Always look at the Data Sheets. I’ve...
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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 macOS Microsoft IIS Microsoft SQL Microsoft Windows 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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