In this article I would like to present a simple setup that allows you to interconnect a local area network to a Virtual Private Cloud (VPC) hosted on Amazon Web Services (AWS) with a private VPN tunnel. The tunneling technology used is OpenVPN. To implement this configuration you will need:…
Most of medium to large companies have three levels of escalation of trouble tickets: Help Desk – The first level is generally handed by the help desk (or service desk) that receives and processes user reported outages via phone or other communication means. Before opening and escalating a ticket to…
Everybody understands the importance of having network monitoring tools in place. However, which tools should you consider to support your network infrastructure and, most importantly, your end-users? There are many tools on the market, probably hundreds of them, and choosing the right one is not very easy. If you actually…
The Raspberry Pi (RPi) has been a smash hit in so many different areas. Hobbyists love them and professionals have found a reliable, low-cost, and small-footprint platform to build commercial products. For these reasons, the Raspberry Pi is our preferred platform for implementing end-user distributed network monitoring here at NetBeez….
Every network interface is set with an MTU (Maximum Transmission Unit) value that defines the byte size of the largest protocol data unit that is allowed to pass. So what happens when a frame or packet is larger in size than the MTU value of the interface? It depends on whether…
The internal help desk of an enterprise is the end-user’s single point of contact for ticket submission and troubleshooting. Unsurprisingly, the help desk receives tickets that range across the board from keyboard and mouse issues to application and network problems. A company may have one, two, or more levels of…
Troubleshooting Remote Application Issues How many times are users aware of remote application issues before you are? How much time do you spend collecting information about the problem from the end users or your monitoring systems before you can pinpoint the root cause? The number of hardware and software components…
On Thursday, 17 July 2014 we hosted our first live webinar on NetBeez. We had a good number of participants and got some good questions at the end. The first part of the webinar is a five-minute presentation that puts in context what outages and network degradation problems that SNMP…
This is the last of three posts about planning, executing, and validating network configuration changes. You can find the first two here and here. Validating Network Configuration Changes This is a critical part of any configuration change. The goal of this phase is to make sure that the work was…
Network tomography is the inference of the internal behavior and topology of a network, based on end-to-end network measurements. Imagine having the ability to probe the network from its edges and reach conclusions about its guts. Similarly, computer tomography allows you to create an image of an object or a human…