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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 & 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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Code

Python – Find ASN and Subnets using an IP Address

MANUAL whois -h whois.cymru.com " -v [IP_ADDRESS]" whois -h whois.radb.net -- '-i origin ASXXXXX | grep -Eo "([0-9.]+){4}/[0-9]+"   PYTHON...
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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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Security

CURL – Does it Use Certificates When Testing HTTPS (SSL/TLS)

When using `curl` to make HTTPS requests, it does indeed use certificates as part of the TLS (Transport Layer Security)...
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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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Data Center

Hot Site vs Warm Site vs Cold Site

Hot Site: A hot site is designed to replicate your organization’s primary IT infrastructure in real-time. It involves a fully...
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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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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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Laptops & Desktops

When and Where to do HTTP(S) Redirects

Where a company decides to handle the redirect from a root domain to a ‘www‘ subdomain (or vice versa) largely...
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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 Microsoft IIS Microsoft SQL Microsoft Windows Netflow 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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