Technology Insights

Litespeed PHP Compile Error: Cannot find autoconf

Once I finally made it past the PHP build process the Litespeed Admin Console Detailed Log complained of not being able to find autoconf. This one is fairly obvious but wanted to note just in case someone is not familiar with the autoconf package. Again since this is a new server with a minimal install the autoconf package had not been installed. Below are details about the error from the Litespeed Detailed Log and how to install autoconf via yum.

Technology Insights

Windows 7: Turn Off Ding When Using Tab Via SSH Sessions

This is something that came up earlier today with a friend of mine and decided it might help someone else in the future so I should note it. The sound I am talking about disabling is the default ding on Windows that occurs for many reasons but specifically if you are SSH’d into a server using console or a client such as SecureCRT and you hit tab twice in a directory to list all of the files you will hear a “ding” sound. This can be quite annoying depending on how often you use tab or if you work in the same office area as someone else. Below is information on how to disable the default ding in Windows 7.

Technology Insights

2001 Honda Civic: Air Conditioning & Power Locks Stopped Working And Emergency Brake Light On

I primarily write about computer hardware and software on this site however the intention has always been to write articles that assist people in resolving problems. A couple days ago my wifes car, which is a 2001 Honda Civic, started having multiple problems all at the same time. These problems included the air conditioner compressor not kicking on, the power locks not working, the emergency brake light was constantly on, and the dome light no longer came on when the doors were opened however the dome light itself still worked. After a little research I found out that all of these issues combined point to the MCU (Multi-Control Unit) being the problem. The bad part is the MCU is built into the fuse box so below is information on what I had to do to replace the fuse box.

Technology Insights

CentOS Yum: Disable A Specific Mirror

Installing a bunch of packages on a CentOS server today I ran into an issue where the CentOS Base mirror I was using was incredibly slow. First I checked to make sure that the yum-fastestmirror plugin was installed which it was. Next I attempted to clear the fastest mirror plugin cache by running “yum clean plugins” but I ended up with the same exact CentOS Base mirror yet again. Follow the directions below to disable a specific mirror from yum.

Technology Insights

Overclock NVIDIA G210M & NVIDIA 9400G M GPU’s In A Dell Studio XPS 1340

This weekend I was investigating the capabilities of the two NVIDIA graphics cards in my laptop and a password cracking application called oclHashcat. The oclHashcat application uses OpenCL, the Open Computing Language, to utilize the processing power of your graphics cards GPU’s to crack passwords. My laptop is a Dell Studio XPS 1340 which utilizes Hybrid SLI technology to offer a good amount of graphics power while using the least amount of battery life possible. The laptop accomplishes this by mostly using an NVIDIA graphics card, which is a NVIDIA 9400G M, that is installed on the motherboard and only calling the second graphics card, which is a NVIDIA G210M, when it needs to render something in say 3D or higher quality than the 9400G M is equipped to handle. One thing I happened upon during my research was an NVIDIA utility that will easily allow you to overclock your NVIDIA graphics cards which I describe in more detail below.