Tonight I was downloading some packages from a community FTP server I am a member of and noticed that the transfer speeds were not showing after I started to process the FileZilla FTP transfer queue. Initially I figured I must have unchecked a toolbar or accidentally modified a view setting without knowing it. After reviewing the FileZilla configuration I couldn’t find anything that specified the display of the transfer speeds. Below I show FileZilla when it is not displaying the transfer speeds when it is in the middle processing a queue, what steps I took to resolve the issue, and last but not least what FileZilla should display when it is processing files from the transfer queue.
oclHashcat64.bin: /usr/lib64/libOpenCL.so: no version information available (required by ./oclHashcat64.bin)
I have been working on a project using oclHashcat this afternoon and started to look into an error that has existed on a development server where we use oclHashcat for quite some time. After some digging around I am confident that regardless of the error existing there is not an issue but I wanted to post an article related to the error in case anyone else looked for a resolution to the error. Below is information on the libOpenCL.so error and my thoughts regarding the error.
Recently we have been doing a lot of testing of oclHashcat on CentOS Linux servers. The oclHashcat application takes advantage of the GPU’s, or Graphical Processing Units, of Nvidia graphics cards or ATI graphics cards. Anyhow one of the servers we have been testing with has four Nvidia 295 GTX’s and at times was receiving an error stating the kernel was disabling the IRQ. Below we describe the error in more detail along with a kernel parameter that was added to resolve the error. Even though we experienced this issue with oclHashcat specifically the error could happen with other applications and/or Linux Operating Systems so the resolution could be the same.
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.
I have been using Hashcat and oclHashcat a lot in recent weeks but have been limited to primarily using it on Linux servers so I decided to give it a shot on a couple Windows machines. Below I describe how I got oclHashcat operational on Windows 7 Ultimate 32-Bit on a desktop computer with a NVIDIA 9600GT GPU as well as operational on a Windows 7 Ultimate 64-Bit laptop with NVIDIA 9400G M GPU and a NVIDIA G210M GPU. Below is information on what needs to be done to get oclHashcat working on Windows 7.