Bastille Linux - Firewall Configurator
http://bastille-linux.sourceforge.net/
Check Root Kit
http://www.chkrootkit.org/
Dan (D. J.) Bernstein
http://cr.yp.to
Daemontools - http://cr.yp.to/daemontools.html
Djbdns - http://cr.yp.to/djbdns.html
Ucspi-tcp - "http://cr.yp.to/ucspi-tcp.html
Fireparse
http://aaron.marasco.com/linux.html
Firestarter - Firewalls made easy!
http://www.linux-firewall-tools.com/linux/faq/index3.html
Linux Free Swan (IPSec)
http://www.xs4all.nl/~freeswan/
Linux Intrusion Detection System Patch (LIDS)
http://www.lids.org/
Mail Abuse Prevention System
http://mail-abuse.org/
Network Abuse Clearing House (SPAM Tester!)
http://www.abuse.net/relay.html
Netsaint Network Monitor
http://netsaint.sourceforge.net/
Nmap– Stealth Port Scannre
http://www.nmap.org/
Openssh
http://www.openssh.org
http://marc.theaimsgroup.com/?l=openssh-unix-dev&r=1&w=2
Qmail (and associated Files)
Life with Qmail - http://www.lifewithqmail.org/lwq.html
Qmail - http://www.qmail.org
Amavis - http://www.amavis.org (Virus Scanner Script)
Putty -– Windows SS Client
http://www.chiark.greenend.org.uk/~sgtatham/putty/
rh-errata
http://www.linuxcommand.org/script_library.html
SAINT - The Security Administrator's Integrated Network Tool
http://www.wwdsi.com/saint/
SNORT: A lightweight network intrusion detection system
http://www.snort.org/
Stunnel -- Universal SSL Wrapper
http://www.stunnel.org
Win-SCP (Secure ftp)
http://winscp.vse.cz/eng
ARIS: Attack Registry & Intelligence Service
http://aris.securityfocus.com/
CERT – Computer Emergency Response Team
http://www.cert.org/
FREE Security Course - InfoSec University
101-Information Security Fundamentals
https://infosecu.com/free.htm
Linux Security Knowledge Base
http://www.securityportal.com/lskb
Linux Security .com / Resources
http://www.linuxsecurity.com
http://www.linuxsecurity.com/docs/
Mailing List Archives (SSH, SSL, Linux, Etc.)
http://marc.theaimsgroup.com
Root Prompt .org (Nothing but Unix)
http://www.rootprompt.org
SANS Institute
http://www.sans.org/newlook/home.htm
Search Security .com
http://searchsecurity.com
Security Focus .com
http://www.securityfocus.com
Security Friday .com
http://www.securityfriday.com/main_index.html
Security Portal .com
http://www.securityportal.com
Security Watch .com
http://www.securitywatch.com
Syslog-ng 1.4.11 - Devel: 1.5.5a
http://www.balabit.hu/en/products/syslog-ng
The Hackers Choice
http://www.thehackerschoice.com/
Drive the point home links:
Attrition.org
http://attrition.org/
Defacement Archive
http://defaced.alldas.de
Example Articles:
Amateur Fortress Building in Linux Part 1
http://www.rootprompt.org/article.php3?article=903
Amateur Fortress Building in Linux Part 2
http://www.rootprompt.org/article.php3?article=931
Security Focus .com List of Unix system ports
http://securityportal.com/firewalls/ports/ports1to500.html
http://securityportal.com/firewalls/ports/ports501to1000.html
http://securityportal.com/firewalls/ports/ports1001to1500.html
http://securityportal.com/firewalls/ports/ports1501to2000.html
http://securityportal.com/firewalls/ports/ports2001to2500.html
http://securityportal.com/firewalls/ports/ports2501to3000.html
http://securityportal.com/firewalls/ports/ports3001to3500.html
http://securityportal.com/firewalls/ports/ports3501to7000.html
http://securityportal.com/firewalls/ports/ports7001to65535.html
Last Updated: April 10, 2001 @ 11:51am
Webmaster: Richard Zimmeman