Technology Insights

Linux Create Fake Ethernet Interface

There could be numerous reasons to create a fake Ethernet interface on a Linux server though I have heard that people might do so to get around licensing of software that is tied to the MAC address of a specific Ethernet port. You really just enable a dummy Ethernet interface and assign the MAC address to it which is explain in more detail below. The easiest way to do this is to simply assign a MAC address to an Ethernet interface you are not using on your server where the drivers have already been installed automatically. If you do not have a spare Ethernet interface then the instructions below will assist you to accomplish your goal.

Technology Insights

Windows XP Task Manager Missing Tabs, No Processes, Performance, Networking, or Users Tabs

I was troubleshooting a Windows XP computer that had been brought in to my friends computer shop this afternoon and noticed something odd going on with the Windows Task Manager. The computer had multiple issues including various viruses, Norton Internet Security installed, hadn’t been upgraded or patched for over a year, and numerous other items going wrong. I will say that Norton Internet Security is probably the worst antivirus software I have ever come across because not only does it take over every aspect of your computer but on top of that it doesn’t even save your computer from getting infected by viruses. After getting the computer in working shape by removing Norton Internet Security and beginning the installation of Windows XP patches I launched Windows Task Manager to view something and when I did the list of running applications displayed but I could not click other tabs that normally appear at the top of the Task Manager. Below I display an image of what the Windows Task Manager looked like and how I easily resolved the issue.

Technology Insights

CentOS 5.2 /etc/sysconfig/networking

The file located in /etc/sysconfig/networking/profiles are created by the GUI network interface management tool. These files should not be edited manually and when changes need to be made they should be made directly to the files as shown below. CentOS 5 is easy to get around from the command line and it is beneficial to understand each of the below files if you are going to manage a server.

Need to make a change to hostname?
First modify /etc/sysconfig/network and modify the following line:
HOSTNAME=your.hostname.here