Kali Linux is an open source project that is maintained and funded by Offensive Security, a provider of world-class information security training and penetration testing services. In addition to Kali Linux, Offensive Security also maintains the Exploit Database and the free online course, Metasploit Unleashed.
BleachBit quickly frees disk space and tirelessly guards your privacy. Free cache, delete cookies, clear Internet history, shred temporary files, delete logs, and discard junk you didn't know was there. Designed for Linux and Windows systems, it wipes clean a thousand applications including Firefox, Internet Explorer, Adobe Flash, Google Chrome, Opera, Safari,and more. Beyond simply deleting files, BleachBit includes advanced features such as shredding files to prevent recovery, wiping free disk space to hide traces of files deleted by other applications, and vacuuming Firefox to make it faster. Better than free, BleachBit is open source.
Features
BleachBit has many useful features designed to help you easily clean your computer to free space and maintain privacy.
Simple operation: read the descriptions, check the boxes you want, click preview, and click delete.
Liferea is a popular feed reader (news aggregator) for Linux-based systems that has an easy-to-use UI (user interface) written in GTK and it can be integrated smoothly in Gnome-based desktop environments. Liferea supports many web syndication formats such as RSS, OPML, Atom, etc. It also allows users to read RSS feeds offline (offline reading). Liferea has been updated recently to version 1.8.12 which is now compatible with the Tiny Tiny RSS news feed (RSS/Atom) reader and aggregator.
Liferea 1.8.12 Installation
Liferea 1.8.12 can be easily installed in Ubuntu/Linux Mint with the following commands from the terminal:
sudo add-apt-repository ppa:liferea/ppa sudo apt-get update sudo apt-get install liferea NOTE: PPA installation for version 1.8.12 is currently available for Ubuntu 12.10 and Linux Mint 14 only.
The qBittorrent project aims to provide a Free Software alternative to µtorrent. Additionally, qBittorrent runs and provides the same features on all major platforms (Linux, Mac OS X, Windows, OS/2, FreeBSD).
An advanced and multi-platform BitTorrent client with a nice Qt4 user interface as well as a Web UI for remote control and an integrated search engine. qBittorrent aims to meet the needs of most users while using as little CPU and memory as possible.
Features
Simultaneous download of multiple torrents
Integrated torrent search engine
Integrated RSS feed reader and downloader
Good internationalization
DHT, PeX, Encryption, LSD, UPnP, NAT-PMP, µTP
Cross platform (Linux, Mac Os, Windows)
Very lightweight
Torrent queueing and prioritizing
Control over files in a torrent (filtering, prioritizing)
Nice µTorrent-like interface with Qt4 toolkit (qBittorrent v2.x)
IP filtering (eMule dat files or PeerGuardian files)
Peer display with country and hostname resolution (qBittorrent v2.x)
Advanced control over torrent trackers (qBittorrent v2.x)
Closest open source equivalent to µTorrent (qBittorrent v2.x)