http://www.linuxplanet.com/linuxplanet/roundups/6579/1
Anti-Everything, Encryption, Secure Delete, Forensics
The area of open source security software is growing rapidly, with a
cornucopia of apps for every use: anti-spam, firewalls, forensics,
encryption, log monitoring, passwords – the list is growing even as you
read this.
In many cases, these open source security tools – many of which are free
– are available for the Windows, Linux and Mac operating systems.
Let the downloading begin…
1. SpamAssassin
Winner of multiple Datamation Product of the Year awards, SpamAssassin
uses header and text analysis, Bayesian filtering, DNS blocklists, and
collaborative filtering databases to block unwanted e-mail at the server
level. It works with most mail systems and is available under the
Apache license. Operating System: OS Independent.
Anti-Virus/Anti-Malware
2. ClamAV
This anti-virus toolkit is designed especially for protecting mail
gateways and features a command line scanner, automatic updates, and
more. Although the original ClamAV engine works only with Unix-like
systems, numerous other projects (both open-source and commercial) have
incorporated ClamAV. Operating System: Linux, Unix, BSD.
3. ClamWin
ClamWin provides a Windows front-end for the ClamAV antivirus toolkit.
It features automatic updates, a scanning schedule, Outlook integration,
and more. Operating System: Windows.
Application Firewall
4. SELinux
Developed by the NSA, Security Enhanced Linux adds mandatory access
control features to the Linux OS. It enforces complete separation of
information to make it more difficult to bypass application security
mechanisms. Operating System: Linux, Unix.
5. AppArmor
Novell's application firewall uses policy-based profiles to control who
can access various applications. It's included with openSUSE and SUSE
Linux Enterprise, but is also available for download for any Linux
system. Operating System: Linux.
Data Destruction
6. Darik's Boot And Nuke
Just slip a disk containing Darik's Boot and Nuke into your system, and
it will automatically destroy all the data on any hard drive it can
detect. It's ideal for cleaning up old computers before they are donated
or recycled. Operating System: OS Independent.
7. Eraser
Eraser completely eliminates a file so that it cannot be read with
digital forensic tools. It overwrites data several times with random
patterns erasing all traces of sensitive information. Operating System:
Windows.
Encryption
8. TrueCrypt
TruCrypt can create a virtual encrypted disk within a file or encrypt a
partition or drive on a Windows system. It can also be used to encrypt a
portable hard drive or USB flash drive. Operating System: Windows, Mac,
Linux.
9. AxCrypt
Simply right-click any file on Windows Explorer to encrypt it with
AxCrypt. AxCrypt aims to make it as easy to work with encrypted files as
it is to work with unencrypted files—just a lot more secure. Operating
System: Windows.
File Transfer
10. WinSCP
WinSCP is a easy-to-use, basic SFTP and FTP client for Windows only. It also supports SCP. Operating System: Windows.
Forensics
11. The Sleuth Kit
Need to recover a deleted file? The Sleuth Kit lets you read deleted
data from NTFS, FAT, FFS, and EXT2FS file systems. Operating System:
Windows, Mac, Linux, Unix, BSD, Solaris.
Gateway Security Appliance
12. Untangle
A great alternative to expensive commercial security appliances,
Untangle combines the best of open-source Web filtering, anti-spam,
anti-spyware, anti-virus, intrusion prevention, firewall, VPN, and more
into one download that can be used to turn any PC into a security
appliance. Commercial support and other add-ons are available for a fee.
Operating System: Linux.
13. Endian Firewall Community
Similar to Untangle, Endian Firewall Community can turn an old PC into a
unified threat management (UTM) appliance that provides a firewall,
anti-virus, anti-spam, content filtering, and a VPN. Pre-configured
appliances and support are also available for a fee. Operating System:
Linux.
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