This site is primarily concerned with privacy and security solutions for Windows users. If you're a Linux user who is interested in these issues, you could do worse than start with the links below.

AdKiller

http://www.robinlewis.co.uk/AdKiller.html

 

Armoring Linux

http://www.enteract.com/~lspitz/linux.html

 

Astaro Security Linux

http://www.astaro.com/

 

AVG for Linux

http://www.grisoft.com/

 

Bastille Linux

http://www.bastille-linux.org/

or http://sourceforge.net/projects/bastille-linux/

 

BestCrypt for Linux

http://www.jetico.com/linux.htm

 

BitDefender Linux Edition

http://www.bitdefender.com/bd/site/products.php?p_id=16

 

CD-ROM Firewall

http://sourceforge.net/projects/cdfw/

 

Central Command - Vexira Antivirus for Linux

http://www.centralcommand.com/linux_products.html

 

CIS Level-1 Benchmark & Scoring Tool for Linux

http://www.cisecurity.org/bench_linux.html

 

Codebook (GnuPG front-end)

http://home.earthlink.net/~cortana/downloads.html

 

ComClear

http://www.neuro-tech.net/comclearu.html

 

CrossCrypt

http://www.scherrer.cc/crypt

 

Cryptonit

http://cryptonit.org/

 

Enforcer Linux Security Module

http://sourceforge.net/projects/enforcer/

or http://enforcer.sourceforge.net/

 

EnGarde Secure Linux

http://www.guardiandigital.com/products/software/trial/

 

ESET NOD32 Anti-Virus System for Linux

http://www.nod32.com/

or http://www.nod32.com.au/

or http://www.eurosecure.com/

or http://www.esetsoftware.co.uk/

 

Frisk F-PROT Linux

http://www.f-prot.com/download/

 

fBuilder

http://www.innertek.com/

 

FireStarter

http://firestarter.sourceforge.net/

 

Firewall by Jim

http://www.jg555.com/projects/firewall/firewall.php

 

Firewall Guide - Linux

http://www.firewallguide.com/linux.htm

 

Firewall On a Floppy

http://www.zelow.no/floppyfw/

 

FrazierWall Linux

http://www.frazierwall.com/

 

Free IPTABLES Script

http://www.dslreports.com/forum/remark,4830414...

 

Geheimnis (GnuPG/PGP front-end)

http://geheimnis.sourceforge.net/index.phtml

 

GnatBox Firewall Products

http://www.gta.com/products/

 

GnomePGP

http://www.geocities.com/SiliconValley/Chip/3708/gpgp/gpgp.html

 

gpgdir

http://www.cipherdyne.org/gpgdir/

 

GnuPG (The Gnu Privacy Guard)

http://www.gnupg.org/

or http://www.pgpi.org/download/gnupg/

 

grsecurity

http://www.grsecurity.net/

 

GuardDog Firewall

http://simonzone.com/software/guarddog/

 

Guidescope

http://www.guidescope.com/products/

 

HackingLinuxExposed.com - Articles

http://www.hackinglinuxexposed.com/articles/

 

HelpNet Security - Software for Linux

http://www.net-security.org/software_main.php?cat=2

 

HOSTS File for Linux or Unix

http://www.accs-net.com/hosts/hostsforlinux.html

 

httptunnel

http://www.nocrew.org/software/httptunnel.html

 

IDX-PKI

http://idx-pki.idealx.org/index.en.html

 

Internet Junkbuster

http://internet.junkbuster.com/

or http://www.waldherr.org/junkbuster/

 

IPchains

http://www.netfilter.org/ipchains/

 

IPCop Firewall

http://www.ipcop.org/cgi-bin/twiki/view/IPCop/WebHome

or http://sourceforge.net/projects/ipcop/

 

IPtables

http://www.netfilter.org/

 

Jay Beale's Linux/Unix Security Page

http://www.bastille-linux.org/jay/index.html

 

Kaspersky AntiVirus for Linux Systems

http://www.kasperskylabs.com/products.html?tgroup=4

 

KGPG (GnuPG front-end)

http://devel-home.kde.org/~kgpg/index.html

 

LIDS Project - Secure Linux System

http://www.lids.org/

 

Linux - Basic Security

http://www.xmission.com/~howardm/security.html

 

Linux.com - Documentation

http://linux.com/index.pl?section=documentation

 

Linux Documentation Project

http://www.tldp.org/

 

Linux Firewall & Security Site

http://www.linux-firewall-tools.com/linux/

 

Linux OpenS/WAN

http://www.openswan.org/

 

Linux IPCHAINS-HOWTO

http://www.tldp.org/HOWTO/IPCHAINS-HOWTO.html

 

Linux Online - Firewall and Proxy Server HOWTO

http://www.linux.org/docs/ldp/howto/Firewall-HOWTO.html

 

LinuxPlanet - Linux Networking Using Ipchains

http://www.linuxplanet.com/linuxplanet/tutorials/2100/1/

 

Linux-Sec.net

http://www.linux-sec.net/

 

Linux Security HOWTO

http://www.tldp.org/HOWTO/Security-HOWTO.html

 

Linux Security Module

http://lsm.immunix.org/

 

Linux Security Quick Start HOWTO

http://www.tldp.org/HOWTO/Security-Quickstart-HOWTO/index.html

 

Linux security: The Seven Deadly sins

http://searchenterpriselinux.techtarget.com/...

 

LinuxSecurity.com

http://www.linuxsecurity.com/

or http://www.linuxfirewalls.org/

 

Linux Security Tools

http://www.securityfocus.com/infocus/1423

 

Linux VPN Maquerade How To

http://www.tldp.org/HOWTO/VPN-Masquerade-HOWTO.html

 

LOAF - Linux On a Floppy

http://www.ecks.org/projects/loaf/index.html

 

Loopback Encrypted Filesystem HOWTO

http://www.tldp.org/HOWTO/Loopback-Encrypted-Filesystem-HOWTO.html

 

lsh (ssh)

http://www.lysator.liu.se/~nisse/lsh/

 

McAfee E-Business Server 7.1
(PGP Command Line 7.1)

http://www.networkassociates.com/.../ebusiness_server.htm

or http://www.networkassociates.com/us/downloads/evals/

 

Medusa DS9 Security System

http://medusa.terminus.sk/

 

MailWasher

http://www.firetrust.com/firetrustmailwasherpro_maclinux.html

 

Muffin (WWW Filtering System)

http://muffin.doit.org/

or http://sourceforge.net/projects/muffin/

 

munitions - cryptographic software for linux

http://munitions.vipul.net/

 

NSA - Secure Configuration of the Apache Web Server

http://nsa1.www.conxion.com/support/download.htm

or http://nsa1.www.conxion.com/support/guides/sd-5.pdf (PDF document)

 

NSA - Security Enhanced Linux

http://www.nsa.gov/selinux/index.html

or http://freshmeat.net/projects/selinux/

 

NSCache

http://nscache.sourceforge.net/

 

OpenCA PKI Development Project

http://www.openca.org/openca/

 

OpenSSH for Linux (Portable)

http://www.openssh.org/portable.html

 

OpenSSL

http://www.openssl.org/

or http://www.kix.or.jp/~fujino/openssl/

 

OpenVPN

http://freshmeat.net/projects/openvpn/

or http://freshmeat.net/redir/openvpn/...

 

OverWrite

http://www.mirrors.wiretapped.net/security/host-security/overwrite/

 

ThePacketMaster

http://www.thepacketmaster.com/

 

Panda Antivirus for Linux

http://www.pandasoftware.com/download/linux/linux.asp

 

PGP for Linux

http://www.pgpi.org/products/pgp/versions/freeware/unix/6.5.8/ (PGPi)

or ftp://ftp.pgpi.org/pub/pgp/6.5/6.5.8/ (PGPi - ftp)

or http://web.mit.edu/network/pgp.html (MIT)

or ftp://ftp.hacktic.nl/pub/crypto/pgp/pgp60/pgp658/ (ftp.hacktic.nl)

 

Pit Bull

http://www.argus-systems.com/

 

Privoxy

http://www.privoxy.org/

or http://sourceforge.net/projects/ijbswa/

 

pyCA - X.509 CA

http://www.pyca.de/

 

redWall

http://redwall.sourceforge.net/

or http://sourceforge.net/projects/redwall/

 

Rootkit Hunter

http://www.rootkit.nl/projects/rootkit_hunter.html

 

Rubberhose

http://www.rubberhose.org/

 

Saint Jude

http://sourceforge.net/projects/stjude

 

SANS Institute - Linux Issues

http://www.sans.org/rr/catindex.php?cat_id=32

 

Seahorse (GnuPG front-end)

http://seahorse.sourceforge.net/

 

SecurePoint Linux Firewall

http://www.securepoint.cc/en/products-freeware.html

 

SecurePoint Log Analyzer

http://www.securepoint.cc/en/products-logs.html

 

Sentinix

http://freshmeat.net/projects/sentinix/

 

Sentry Firewall CD

http://sentry.sourceforge.net/

or http://sourceforge.net/projects/sentry/

or http://www.sentryfirewall.com/

 

Shorewall

http://www.shorewall.net/

 

Single Network Firewall

http://www.mandrakesoft.com/products/snf

 

SmoothWall GPL

http://sourceforge.net/projects/smoothwall/

or http://smoothwall.org/get/

 

Snort (Intrusion Detection System)

http://www.snort.org/

 

Snort - Linux GUI

http://www.cert.org/kb/acid/

 

SSH for Linux

http://www.ssh.com/products/security/

 

SSH Tools

http://sshtools.sourceforge.net/

 

Ten Minutes to an IPtables-based Linux Firewall

http://www.idg.net/ic_697342_1794_9-10000.html

 

tinc (vpn)

http://tinc.nl.linux.org/

 

Tinfoil Hat Linux

http://tinfoilhat.shmoo.com/

 

TripWire

http://www.tripwire.com/

 

TkPGP

http://www.geocities.com/SiliconValley/Chip/3708/tkpgp/tkpgp.htm

 

WebCleaner

https://sourceforge.net/projects/webcleaner/

or http://webcleaner.sourceforge.net/

 

WebWasher for Linux

http://www.webwasher.com/en/products/wwash/download_linux.htm

 

Wipe

http://wipe.sourceforge.net/download.html

 

Wipe

http://gsu.linux.org.tr/wipe/