Command Prompt: for /L %i in (1,1,254) do @ping -n 1 4.2.2.%i | find "Reply" Powershell: 1..254 | % {...
I wrote a post about using iperf, a tool to test network speed and throughput. I just want to quickly...
OPTION 1 To run the `ipconfig /displaydns` command on a remote PC named “pc-kcordero” in a Windows environment, you can...
Test-NetConnection -ComputerName remote-server -Port port or Test-NetConnection -ComputerName qa-api.cordero.me -Port 443...
In Cisco Nexus switches, you can configure Jumbo Frames on a per-interface basis. It is important to note that changing...
(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...
Transport Layer Security (TLS) is a protocol designed to provide secure communications over a computer network. Below is a simplified...
Knowing which devices are sending BPDU packets on the network when troubleshooting spanning tree issues can be helpful. This allows...
Traceroute is a convenient network diagnostic tool for tracking the pathway taken by a packet on an IP network from...
First, I try to avoid this whenever possible. I don’t like the idea of having multiple IP’s on one NIC...