FreeBSD Upgrades with ZFS boot environments
FreeBSD has always been my OS of choice but in the past I have always viewed upgrades as one point of failure. What if the upgrade doesn’t go as expected, How do I role it back? If you have FreeBSD […]
General Unix Articles
Apache: Different authentication requirements
I have a web application running on Apache 2.4 that I would like to be password protected for everyone except for my local network. If someone access it from my local network, it should let them in without a password.
MySQL: Working with Date Ranges
At times we have to collect the last 7 or 15 days of data from MySQL. For example to create graphs or stats for the past x amount of days or weeks. You can use these examples anytime you want records from […]
VMware: Enable Change Block Tracking (CBT)
Change block tracking allow tools to track what blocks in a virtual drive have changed over a period of time. This is very useful for backup software as it is able to backup just the delta changes instead of the […]
Secure HAProxy with Let’s Encrypt
I currently run Octoprint on a Raspberry Pi that is hooked up to be 3D printer. This setup uses HAProxy to provider the web front end for the user. I am in the process of securing all my systems so […]
MySQL: Search and Replace
There are a number of times when I have had to change one string to another in a MySQL table. In the past I would do a MySQL dump, edit the file, and then import it back in. This worked […]
NUT Client for VMWare ESXi
NUT is some great software for managing a UPS and notifiying all your client s to shutdown properly. This document describes how to install a NUT client into ESXi 5 or 6 and have it shut down properly when there […]