Server admins, security experts, and the world wide web were caught by surprise with the announcement of the Heartbleed exploit. In a nutshell, Heartbleed is a bug in the open source Linux encryption software known as openSSL. The flaw allows hackers to potentially…
Frustrated by brute force attacks on your server from botnets with ever-changing IP addresses? Me, too. I finally got around to assembling a simple Linux active firewall, which I call “slaf”. This PHP script monitors the CentOS secure log and records…
A recent implementation of Sunshop involved getting thousands of products into Sunshop from a wholesale inventory file. The wholesaler had very high level category arrangements that wouldn’t work for a online store. The store needed many more categories and…
I started 2013 with an important goal: Migrate my hosting operations to a reliable data center provider, so I could focus on building web sites and writing software for my customers. For eight years, ZJS Technology’s hosting operations were housed in a Ft….
If you do any custom development for Turnkey Webtools’ Sunshop shopping cart software, sooner or later you come across this challenge. Categories in Sunshop are organized very simply. Every sub-category has a parent category id (stored in the “subof”…
9:30pm: Server Helios is currently experiencing a failed power supply. The data center staff are working to swap the power supply with a new unit and return the server to active status as soon as possible. 3/7/2013 12:00am UPDATE: The server is repaired and back…
For a long time, I served secondary DNS for Plesk domains using a non-Plesk server, but I was manually creating the zones on the secondary DNS machine. Too much “hands-on,” and too many places for human error. I took a closer look at automating the…
EditPlus – This little known Windows text editor is designed for developers, and it’s a terrific tool for web developers. It offers syntax highlighting for HTML, CSS, PHP and JavaScript, along with excellent FTP integration, which makes editing files on a…
At approximately 4pm on 11/22/2010, a switch failure in the Ft. Lauderdale Peak 10 data center caused a disruption of network traffic, resulting in a loss of connectivity for ZJS Tech’s servers. The outage was intermittent, and lasted for approximately 30 to 90…