It's Never The Network

It's Never The Network
A place to plan, troubleshoot and learn about computer networks and other cutting edge infrastructure technologies.

Tools

This list is constantly growing, so be sure to check back.

cURL - Send a HEAD request from the NTN Webserver

DNS - Send DNS queries from the NTN Webserver

Ping - Ping servers from the NTN Webserver

Subnet Calculator - Calculate IPv4 and IPv6 Subnets

Traceroute - Run traceroute from the NTN Webserver

OUI Lookup - Find device manufacturers based on MAC Address

Whois - Find the owner of an IP address or Domain

Latest Articles

A Power User's Guide to the Linux CLI

By Brandon James on 2019-10-10 Filed Under: Cheatsheets, Linux
At first, I was using Linux because I'm a nerd and that's what we do, but I continue to use it because it increase my productivity.

Practical Automation - Netwatch

By Brandon James on 2019-09-12 Filed Under: Automation, Programming
In this article I give a brief introduction to my Netwatch script.

Locator/ID Separation Protocol - LISP

By Brandon James on 2019-09-04 Filed Under: Route/Switch
The Locator/ID Separation Protocol or LISP was originally designed to decrease the size of routing tables on the Internet. As the protocol matured it made it's way into the enterprise[^1] though solutions like Cisco Software Defined Access. In this article I provide a summary of the problem LISP solves and how LISP functions. The purpose of this article isn't to cover the protocol in it's entirety, but to build an awareness of how the protocol works.

How I Automate - Concurrency

By Brandon James on 2019-08-01 Filed Under: Automation, Programming
Interacting with Network Devices can often be I/O limited. A function runs, waits for a response from the device, then another function runs so on and so forth. This is made worse by the fact that scripts are often run against multiple devices. After all the purpose of scripting is to speed up repetitive tasks.