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Certificate Chains

There are three parts to a cert chain: Root Certificate: A root certificate is a digital certificate issued by the...
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SecurityServers

Linux Packet Captures with TCPDUMP

Laptops & DesktopsServers

Powershell – Search Computer Names

I wanted a way to server for servers with specific partial names. For example, let us say I’m searching for...
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Laptops & DesktopsServers

AD Replication Internally vs Site-to-Site

I’m focusing more on DNS updates. Below is how long a DNS record will update (new record or updated record)....
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Data CenterLaptops & DesktopsServers

Data Center Rack Units Chart

Below is a chart to figure out how many inches is 1U in a Rack.  This comes in handy when...
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Laptops & DesktopsServers

Microsoft Windows AD Force Intersite Replication and Force DNS Update

Based on site topology, there are two forms of Active Directory replication, Intrasite, and Intersite. All domain controllers inside the...
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Servers

Windows 2016 Performance Tuning

Laptops & DesktopsServers

Netstat and Finding Processes/Apps

Windows: In this example you can see the One Drive is using port 443. C:\>netstat -aon | findstr "443" TCP...
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Routing & SwitchingServers

Network Speed and Throughput Issues – Some Things to Look For

I wrote a post about using iperf, a tool to test network speed and throughput. I just want to quickly...
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CloudData CenterLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

SD-WAN Requirement Questions for Vendor Evaluation

Below are some good questions you should be asking when looking into SD-WAN....
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Categories

  • Cloud
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  • Load Balancing
  • Routing & Switching
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  • Servers
  • Uncategorized
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AWS Azure Best Practices BGP Certificates CISA Cisco Cisco ACI Cisco ACS Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack Cisco Wireless DDOS Design DNS EIGRP F5 HP IP Sla Kali Logging macOS Microsoft IIS Microsoft Windows Netflow Okta OSPF Packet Capture Palo Alto Palo Alto CLI PDF Ports PowerShell QOS snmp Splunk SSL Structured Cabling Troubleshooting VMWare
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Troubleshooting Palo Alto Microsoft Windows Cisco ASA PDF
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