The Tech Blog

So you’ve built a traditional web server on a red hat distribution of linux, and need to tweak the configuration some more? Finding the configuration file for this service has always been the bane of my life.

New users to GNS3 may find that launching the software may not always be straight forward. The “NPF or NPCAP service is not installed error” may appear but luckily there is a quick and easy fix.

The Issue

Upon investigating a spike of customers reporting that they are unable to connect to our IMAP email services (which we maintain in house using Dovecot), we correlated these issues to a recent update released by Microsoft.

All these customers could connect via SMTP but not over IMAP in Microsoft Outlook (which we could replicate). All of which had all recently updated to build 1807.

I’ve always wondered how to do a (somewhat reliable/accurate) speed test from a linux server via command line. In this guide I will walk you through the quick steps of installing a python application that does exactly that using speedtest.net’s services.

Ever had a situation where you’re wanting to deploy a virtual machine on a Windows Operating System but only have it in a VMWare file format? There’s a quick command line utility to convert the file without compression.

I noticed that on my Linux media server that my windows mount points were intermittently freezing and dropping the link that my services need to work properly. After spending a long time troubleshooting this issue I have found an unexpected resolution.

This guide will be useful to those that have SMB mounts on a Linux Operating System.

Ever wanted to merge a collection of images into a .pdf file? Websites can do this for you but are never intuitive to navigate and have restrictions on its use due its potential of being misused. In this article we explore an easy method of doing locally on your own machine within terminal on MacOS.

For this we are going to have to use 2 powerful tools called Homebrew and ImageMagick.

Ever needed to provide the WIFi password to someone but can’t access it from where you are? This short article will guide you through the process of locating this password on a Windows device that has previously connected to the WIFI (the device doesn’t even have to be connected!).

Ever wanted to shutdown or reboot a machine at a particular time rather than immediately? In this article I shall go over the simple process of scheduling these events which is particularly useful when planning to do these during your least busiest times.

Has the time come for one of the oldest and most popular protocols to cease? A new problem has arisen which has highlighted again that the use of FTP has to be on its way out due to its known flaws. In this post I shall be exploring this new problem and how I overcame it.

Technical Fixes and Tips

Where to find HTTPD Config Files?

NPF or NPCAP service is not installed GNS3 Error

IMAP/Dovecot Connection Issue after Microsoft Update (Build 1807)

The Issue

How to do a Speed Test on Ubuntu/Debian

How to convert VMWare (.vmdk) to Hyper-V (.vhdx)

SMBv3 Mounts and Linux

How to merge JPEGs into a PDF using Homebrew and ImageMagick on OS X

How to reveal a WIFI Password in Windows

Scheduling Windows Shutdowns and Reboots

Is it the end for FTP? “ftp_home_dir” Issue