Nine easy security tools

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BleachBit [9] is a multipurpose utility (Figure 4). Its original purpose was to identify files that could be safely deleted, such as web caches, HTTP and Flash Cookies, unused localizations, and temporary log files that have outlived their usefulness.

Figure 4: Despite its reputation as a conspirator's tool, BleachBit has several legitimate uses.

For those who like to optimize their systems, this functionality remains important. Today, however, BleachBit is known primarily for its ability to shred files and wipe unallocated disk space. In fact, these uses have become so notorious that poorly informed people often assume that anyone who uses BleachBit must be a conspirator. However, if you deal with sensitive information or are a privacy advocate, these are completely legitimate functions, and you should not be discouraged from using BleachBit.


Firewalls are a time-honored form of security. The problem is, even graphical interfaces for setting up firewalls can be difficult to use unless you are well-versed in their structure.

FireStarter's [10] wizard is among the best interfaces available for setting up a firewall (Figure 5). Better yet, detailed instructions for specific distributions, including Linux Mint [11] and Ubuntu [12], are available online.

Figure 5: FireStarter is one the easiest ways to set up a firewall when you lack expertise.

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