We have talked about how to use nmap to detect the OS of a remote host. Nmap does that by sending probing packets and depending on the responses may or may not be able to identify the remote OS with a certain accuracy. That can work well in many cases,…
University Medical Network Team Reduces Root Cause Analysis Time by 75% What do you do when your network engineers are scrambling across hundreds of locations to resolve potential network issues only to find out that after almost two weeks of monitoring each site many of them weren’t even the network?…
There are multiple ways to get a file from a remote Linux host. To name a few: scp, sftp, tftp, http/https… And you could probably add more in the list. Depending on your requirements in terms of security, ease of use, availability, and set-up effort you have to decide what…
Miles of fiber. Dozens of vendors. Temporary, critical networks serving hundreds of thousands of event attendees set up in days. A couple weeks ago I had the chance to talk to Travis Banks, TOURTech’s Director of Technical Operations, about the temporary but critical network demands of the large scale event…
mtr stands for “My Traceroute” and, in a nutshell, it’s traceroute on steroids. They both work the same way: a host sends probing packets to routers, measures and reports latency and packet loss. mtr takes that to the next level by giving you the ability to run the probe packets…
We Are All Remote Workers Remote workers are on the rise. Over the past few weeks we have seen an escalation of events that led to a pandemic crisis. COVID-19 has taken the world by surprise. As a response, the world is moving from in person to remote. Any service…
The Need for Monitoring Profiles Network engineers generally want to organize their network locations by classifying them into groups, either geographically (i.e. region based) or based on users accessing the network from each location (e.g. sales office vs. R&D office), or based on the type of the location itself…
IPv6 Addresses Starting with NetBeez release 4.0, NetBeez agents will report and display IPv6 addresses on the user dashboard. This new feature enables network engineers who have deployed IPv6 to verify that their networks are properly assigning IPv6 addresses to their clients. This feature has been long awaited by our…
We have talked about the differences between iPerf2 and iPerf3 in terms of their reverse options. I recently noticed that the latest iPerf3 version 3.7 released on 06/21/2019 has an additional option to handle reverse testing, and I wanted to talk about it. Installation It takes a while for a…
How to Monitor SD-WAN There are several factors that should be considered when implementing an SD-WAN solution. One of them is network monitoring. In this post, we review some SD-WAN challenges and how network monitoring can help overcome them. Path Remediation and Failover One of the benefits of SD-WAN is…
