Tag Archives: Privacy

Security: Wipe File Deletion

Under most circumstances, recovering a file that has been deleted is pretty easy, even under most Linux file systems. So what do you do if you wish to securely delete a file so that it can not be recovered? Use Wipe

Head over to your Software Manager and do a quick search for Wipe. Once found, just install it as usual. Wipe is a Terminal program, so once installed, there will be no menu item for it.

Wipe Secure File Deletion

Wipe Secure File Deletion

Using Wipe is easy. First thing you’ll want to do is learn the syntax for using the tool. Open a Terminal, and type: wipe -help

Wipe Secure File Deletion

Wipe Secure File Deletion Help Listing

This will give you a full listing of the options and usage for this powerful tool.

Next thing to do is navigate to the directory that contains the file(s) you wish to securely remove from your hard drive and running Wipe against the file name like in the example below:

Wipe Secure File Deletion

Secure deletion example

In this case, I simply typed: wipe filetodelete.png at which point Wipe will ask you to confirm your desire to delete the file. This will be your last chance to say no, before the file is gone for good!

 

Cleaning House

As you run Linux, one of the many things that happens are logs being written, files being cached, search and file history being saved etc.

About once a month, we like to clean house, free up disk space and generally make things neat and tidy again.

The software we use for the task is BleachBit. You can find it with a quick search in your Software ManagerScreen shot of bleachbit

You will actually find two menu items in your System Tools menu once installed: BleachBit, and BleachBit (as root)

Once you open BleachBit, you will be presented with a long list of check boxes for all the different cache and log files you can expunge from your drive. You can also then overwrite all the free space on your drive, making a forensic search almost impossible.

Word of caution though, be careful what boxes you check! Losing all your Firefox passwords, or email configuration can be a real pain to put right!