Information Security

Check Linux Server For Rootkits, Check If CentOS Linux Server Is Compromised

Yesterday I wrote an article about securing your /tmp and /var/tmp directories on a Linux server because I had found some files uploaded to the /tmp directory via the apache user. After locking down those directories I wanted to verify that there were no other issues on the server so I installed Rootkit Hunter and Rootcheck which are two applications that will assist you with verifying the integrity of your Linux server. Below is information on installing Rootkit Hunter and Rootcheck as well as information on how to use each of them effectively.

Technology Insights

How To Install SCP and SSH On Windows 7 Using Cygwin

I use Cygwin on Windows to make my Windows only computers as comfortable as possible to me. This comfort is provided by the Linux command line utilities that allow me to work. Cygwin provides a way for me to run these utilities from a Windows 7 command prompt. Two utilities that are really useful that are not installed with Cygwin by default are SCP (Secure Copy) and SSH (Secure Shell). Both of these utilities allow secure communication with remote computers. Below I describe adding them to an existing Cygwin Windows 7 installation.

Technology Insights

Launch iPhone Screen Capture Utility From The Command Line

I have an iPod Touch 2G that is fairly messed up and both the power button and home buttons are currently not working properly which makes taking screenshots much harder than normal in iPhone firmware 2.X and 3.X. If you have installed Cydia however on your iPhone or iPod Touch then you can launch the screen capture from the command line without issue. Once you have taken a screen capture you can then email the photos to yourself or SCP (Secure Copy) them to your computer. To launch the iPhone screen capture utility from the command line follow the directions below.