Technology Insights

Screenshots – Configure Keyboard Shortcuts For Backtrack Linux

Since I write a lot of articles about Backtrack Linux it is nice to have keyboard shortcuts for different screenshot commands. The two screenshot commands that I use most in Backtrack are “gnome-screenshot -w” and “gnome-screenshot”. The gnome-screenshot command will take a screenshot of the entire desktop while “gnome-screenshot -w” will take a screenshot of the active window only. Below I describe setting up ¬†keyboard shortcuts for each of these commands on Backtrack Linux. The below information will work the same on Ubuntu 10.04 as it does on Backtrack Linux since that is what the current Backtrack Linux version (Backtrack 5 release 3) is built on.

Information Security

PCRE Regex Filters For Kismet On Backtrack Linux

If you decide to remove the default kismet install on Backtrack Linux so you can then compile kismet from source you will be missing some functionality. One of the bits of functionality not installed by default on Backtrack 5 release 3 is the PCRE Regex Filters. You can easily enable this functionality by installing a single package before you run the kismet configure command when compiling the source.

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 Errors

invoke-rc.d: initscript nfs-kernel-server, action “start” failed

Earlier this morning I needed to run some tests against a NFS server running on BackTrack Linux version 5 release 3 and ran into some issues installing the nfs-kernel-server. It appeared as if things started to install properly but then the nfs-kernel-server did not start properly and ended up displaying a couple errors. Below I describe the error in more detail followed by the process I used to get the nfs-kernel-server installed properly on BT5.