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Security applications
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This tool allows administrators to spot strange login behavior and quickly respond to...

GPL

Added Jun 25, 1999
Popularity: 48%

This poackage offers support for FreeBSD and glibc-compatible MD5-based encrypted...

GPL

Added Oct 16, 1997
Popularity: 45%

Nmap is a utility for network exploration and security auditing.

GPL
Console

Added Oct 3, 2003
Popularity: 90%

Tripwire is a straightforward tool with a single purpose: to detect any variance in file...

Freeware

Added Jul 31, 2002
Popularity: 71%

Virtually every task that Bastille Linux performs is optional, providing immense...

GPL
Console

Added Sep 10, 2005
Popularity: 35%

Instead of relying on a database of known attack signatures, this program analyzes the...

Demo
Console / X11

Added Sep 30, 2002
Popularity: 29%

Fcheck is a script written in Perl that provides intrusion detection and policy...

GPL

Added Jul 2, 2001
Popularity: 100%

Pgpgpg serves as a wrapper for GNU Privacy Guard. Pgpgpg takes PGP 2.6 command-line...

GPL

Added Jul 15, 1999
Popularity: 42%

This network vulnerability assessment scanner takes a preventative approach to securing...

Demo
X11

Added Nov 4, 2011
Popularity: 97%

Sudo allows a system administrator to give certain users or groups of users the ability to...

GPL
Console

Added Jun 19, 2005
Popularity: 74%
ttc

This program allows you to control the types of terminals logging into your system.

GPL

Added Aug 17, 1999
Popularity: 68%

The BCWipe is useful because standard file deletion leaves the contents of the "deleted"...

GPL
Console

Added Jun 22, 2004
Popularity: 39%

AIDE is a free replacement for Tripwire. It generates a database that can be used to check...

GPL

Added Nov 26, 2003
Popularity: 94%

Tripwire, while being a great product, leaves something to be desired in the speed...

GPL

Added Sep 11, 2001
Popularity: 84%

Assign files to the program, and it will inform you every time a file is changed.

GPL

Added Sep 26, 2000
Popularity: 32%

The Port Scan Attack Detector (psad) is a Perl program that is designed to work with Linux...

GPL

Added Apr 29, 2002
Popularity: 81%

Butterfly is a timing system designed for environments in which time spent on the Internet...

Demo
Console

Added Nov 29, 2001
Popularity: 77%

pdfcrypt allows you to set permissions to a .pdf file.

Shareware
Console

Added Jun 10, 2003
Popularity: 65%

This is a security module for Web servers. It acts as an application IDS/firewall,...

Demo
Console

Added Aug 8, 2002
Popularity: 26%

SecurityFocus ARIS Extractor is an Intrusion Detection System (IDS) log analyzer and...

Freeware
Console

Added Jul 31, 2002
Popularity: 87%
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