Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Palo Alto – GlobalProtect Gateway Selection Priority Process Algorithm

When setting up your system, it’s crucial to understand how this algorithm operates. It utilizes priority and response time to...
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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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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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Security

NMAP – Enumerating SSL

SSL CERT: To retrieve a server’s SSL certificate: nmap –script ssl-cert -p 443 {DOMAIN} ➜ ~ nmap --script ssl-cert -p...
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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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Data CenterLaptops & DesktopsRouting & SwitchingSecurityServersWireless

SNMP Polling vs Traps

The difference between these is who is initiating the conversation. In Polling, the monitoring server is initiating the conversation asking...
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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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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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Security

Cisco ACS to ISE High Level Design Questionnaire

This post is a high-level design questionnaire that can be used to gather information from a customer’s environment to plan...
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Security

Palo Alto SMTP Reset-Both in the Antivirus Policy and how to Exclude

I was once asked, what happens when SMTP gets reset/blocked, do the end users get a notification....
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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

  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) API 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 F5-LTM 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 Structured Cabling TLS Troubleshooting Upgrade VMWare
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