Category: System Level

Create new directories and subdirectories in Unix using a single terminal command 0

Create new directories and subdirectories in Unix using a single terminal command

It’s funny how programmers get in a "rut", using the same old coding habits and command line syntax for years on end.  I just found that you can create new directories and subdirectories with...

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8 Great Netcat (nc) unix commands 0

8 Great Netcat (nc) unix commands

Netcat or nc (the command) is a networking utility for debugging and investigating a network, typically by creating and utilizing raw TCP/IP connections.  Known as “The Swiss Army Knife for TCP/IP”, nc is used...

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Running linux scripts and services during CentOS / Redhat/ Fedora startup 0

Running linux scripts and services during CentOS / Redhat/ Fedora startup

Running commands and shell scripts on startup/boot Do you need to run a set of commands or a shell script on CentOS / RHEL / Fedora startup?  The easiest way to start a script...

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Windows 8 first time install – thoughts

I downloaded and installed the Windows 8 Consumer Preview on a VMWare virtual machine. I had a Windows 8 Technical Preview installed on the VM and the Windows 8 Consumer Preview happily installed on top of it. Installation went quite well although it took a couple of hours to complete (on a quad-core processor). Here’s a few screenshots taken during my walkthrough of the Windows 8 desktop system.

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Installing an Intrusion Detection System (IDS) and Reporting Interface

An intrusion detection system (IDS) can perform log analysis, check file integrity, monitor policy changes, and keep an eye out for rootkit installations and alert you when a threat is first suspected. The IDS that I chose for my host was OSSES HIDS, an open source host-based Intrusion Detection System offered by Trend Micro. Here’s how I installed OSSEC on my hosted Linux VPS and Splunk on a local Windows machine to monitor.

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Computer built into the desk

A Dutch man built this and posted it on tweakers.net (a Dutch website but translates to English pretty good using Google Chrome). He took a gaming computer system that he had and rather than change out the case, built a desk around it. He mocked up the design using Google Sketch, had his friend weld the aluminum frame and desk, installed thick glass as the desk top, and assembled the computer hardware into the desk frame. I believe the cooling system is in the drawer section to the right.

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New 3D Tri-Gate chips coming from Intel 0

New 3D Tri-Gate chips coming from Intel

Silicon wafers used in computer chipsets (processors) have typically been two dimensional. On May 4, 2011, Intel announced a 3-D transistor technology, called Tri-Gate, that ensures Moore’s Law, which predicts that chipset transistor density doubles every two years, keeps pace. Dense chipsets allow Intel to pack more computer cycles (with less power usage) onto a single chip. By building above the chip’s surface, Intel can build chipsets that are smaller, faster, and use less power. The Tri-Gate transistors will be used in a line of 22 nanometer processors (code named Ivy Bridge) and ready for production use by 2012.

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