Kerry CorderoPractical Network Engineering Notes
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Laptops & Desktops

Data CenterLaptops & DesktopsSecurityServers

NTP Design Stratum Numbers

I already posted about NTP in a Windows domain. I want to briefly talk about stratum numbers. I’ve been in...
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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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Laptops & Desktops

MacOS oh-my-zsh errors fix

After an upgrade to my oh-my-zsh software, I was getting a bunch of errors like the ones below: [oh-my-zsh] Insecure...
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Laptops & DesktopsServers

Microsoft Windows NIC Troubleshooting

Try these 2 commands to get NIC statistics:...
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Laptops & Desktops

Dell – Get Your System Service Tag Using Command Prompt

Go to your command prompt and type in “wmic bios get serialnumber” C:\>wmic bios get serialnumber SerialNumber C5Q###...
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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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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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Data CenterLaptops & DesktopsSecurityServers

DNS Authoritative vs Non-Authoritative (Recursive) and DNS Flows

DNS name servers are usually split into two categories:...
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Laptops & DesktopsServers

Microsoft Windows and IPv6 – Do Not Disable It

Microsoft recommends that you do not disable IPv6 since it could break Windows Components. Instead, they recommend to favor IPv4...
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Laptops & DesktopsServers

Useful Windows Terminal Commands

I’ll try to keep adding to this list....
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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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