System Tools
- aide - Intrusion detection environment
- aircrack-ng - 802.11 (wireless) sniffer and WEP/WPA-PSK key cracker
- airsnort - Wireless LAN (WLAN) tool which recovers encryption keys
- apcupsd - APC UPS Power Control Daemon for Linux
- apg - Automated Password Generator for random password generation
- apt - Debian's Advanced Packaging Tool with RPM support
- arc - Arc archiver
- arj - Archiver for .arj files
- bochs - Portable x86 PC emulator
- cabextract - Utility for extracting cabinet (.cab) archives
- catfish - A handy file search tool
- cfengine - A systems administration tool for networks
- chrpath - Modify rpath of compiled programs
- conman - ConMan - The Console Manager
- connect-proxy - SSH Proxy command helper
- convmv - Convert filename encodings
- crack - Password cracker
- denyhosts - A script to help thwart ssh server attacks
- dkms - Dynamic Kernel Module Support Framework
- ebtables - Ethernet Bridge frame table administration tool
- ed2k_hash - Edonkey 2000 file hash calculator
- eiciel - Graphical access control list (ACL) editor
- emelfm2 - A file manager that implements the popular two-pane design
- enca - Character set analyzer and detector
- environment-modules - Provides dynamic modification of a user's environment
- epylog - New logs analyzer and parser
- etherbat - Ethernet topology discovery
- ettercap - Network traffic sniffer/analyser, NCURSES interface version
- fatsort - Fatsort sorts the FAT of FAT16 and FAT32 filesystems
- fcron - A task scheduler
- fedora-package-config-apt - Fedora configuration files for the apt-rpm package manager
- fedora-package-config-smart - Fedora configuration files for the smart package manager
- foremost - Recover files by "carving" them from a raw disk
- freeze - freeze/melt/fcat compression utilities
- fuse - File System in Userspace (FUSE) utilities
- fwbuilder - Firewall Builder
- fwrestart - A way to more safely re-load firewall rules remotely
- ghasher - GUI hasher for GTK+ 2
- ghex - Binary editor for GNOME
- gkrellm - Multiple stacked system monitors in one process
- gnokii - Linux/Unix tool suite for various mobile phones
- grepmail - Search mailboxes for a particular email
- gtklp - A GTK frontend to CUPS
- gtkterm - Serial port terminal
- gxemul - Instruction-level machine emulator
- hercules - Hercules S/370, ESA/390, and z/Architecture emulator
- hfsplus-tools - Tools to create/check Apple HFS+ filesystems
- hyperestraier - A full-text search system
- ibmonitor - Interactive bandwidth monitor
- inadyn - Dynamic DNS Client
- ip6sic - IPv6 Stack Integrity Checker
- isic - IP Stack Integrity Checker
- jfbterm - Japanese Console for Linux Frame Buffer Device
- john - John the Ripper password cracker
- kdirstat - Graphical Directory Statistics for Used Disk Space
- keychain - Agent manager for OpenSSH, ssh.com, Sun SSH, and GnuPG
- ksmarttray - KDE tray program for watching updates with Smart Package Manager
- lft - Alternate traceroute tool
- limph - A PHP5-compatible network host/service poller with web interface
- lirc - The Linux Infrared Remote Control package
- lzop - Real-time file compressor
- mmv - Move/copy/append/link multiple files
- moodss - Powerful modular monitoring graphical application
- moomps - Powerful modular monitoring service
- munin - Network-wide graphing framework (grapher/gatherer)
- nagios - Host/service/network monitoring program
- netgo - Networking profile manager
- nfswatch - An NFS traffic monitoring tool
- nomarch - GPLed Arc de-archiver
- oddjob - A D-BUS service which runs odd jobs on behalf of client applications
- p0f - Versatile passive OS fingerprinting tool
- p7zip - Very high compression ratio file archiver
- pam_keyring - A PAM module that execute gnome-keyring-daemon and unlock the default keyring
- par2cmdline - PAR 2.0 compatible file verification and repair tool
- pbzip2 - Parallel implementation of bzip2
- powerman - PowerMan - Power to the Cluster
- puppet - A network tool for managing many disparate systems
- pwgen - Automatic password generation
- qdbm - Quick Database Manager
- qstat - Real-time Game Server Status for FPS game servers
- rdiff-backup - Convenient and transparent local/remote incremental mirror/backup
- rootsh - Shell wrapper for auditing
- rsnapshot - Local and remote filesystem snapshot utility
- sabayon - Tool to maintain user profiles in a GNOME desktop
- scrub - Disk scrubbing program
- sec - SEC (simple event correlator)
- shorewall - Iptables-based firewall for Linux systems
- smart - Next generation package handling tool
- smart-gui - Graphical user interface for the smart package manager
- snort - Intrusion detection system
- stripesnoop - Magnetic Stripe Reader
- swaks - Command-line SMTP transaction tester
- swatch - Tool for actively monitoring log files
- synaptic - Graphical frontend for APT package manager.
- syslog-ng - Syslog replacement daemon
- testdisk - Tool to check and undelete partition
- tiobench - Threaded I/O benchmark
- torque-client - Client part of TORQUE
- torque-gui - Graphical clients for TORQUE
- ttywatch - Log output of arbitrarily many devices
- unison - File-synchronization tool
- upx - Ultimate Packer for eXecutables
- viaideinfo - Displays the information of installed VIA IDE controllers
- vnstat - Console-based network traffic monitor
- vpnc - IPSec VPN client compatible with Cisco equipment
- wifiroamd - Automatic WiFi connection (re)establishment daemon
- wine - A Windows 16/32/64 bit emulator
- wlassistant - Wireless network management tool
- x3270-x11 - IBM 3278/3279 terminal emulator for the X Window System
- xsupplicant - Open Source Implementation of IEEE 802.1x
- zidrav - Zorba's Incredible Data Repairer And Verifier