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This appendix lists resources that you may find useful when securing your routers, systems, and networks. It also provides links to sites where you can find more detailed information on topics that are out of the scope of this book—including IPSec, RADIUS/TACACS+, and intrusion detection. | appe.22945 Page 161 Friday February 15 2002 2 52 PM APPENDIX E Resources This appendix lists resources that you may find useful when securing your routers systems and networks. It also provides links to sites where you can find more detailed information on topics that are out of the scope of this book including IPSec RADIUS TACACS and intrusion detection. Web Sites http www.cisco.com This site provides the most current information on Cisco routers and products. Cisco s online technical documentation is excellent and should usually be the first stop for questions involving Cisco routers. http www.cisco.com go psirt A direct link to Cisco s Product Security Incident Response Team PSIRT and a list of all Cisco IOS vulnerabilities. http www.cisco.com cgi-bin Support FeatureNav FN.pl Cisco s feature navigator. It helps determine what IOS vessions and hardware support features such as IPSec and SSH. http nsa1.www.conxion.com cisco NSA-recommended guides for securing Cisco routers. http nsa1.www.conxion.com Additional NSA-recommended security guides. http www.securityfocus.com A security site with excellent news articles tools and vulnerability listings. SecurityFocus is also home to the Bugtraq vulnerability forum. http www.cert.org The original Computer Emergency Response Team CERT based out of Carnegie Mellon. CERT is an excellent resource on vulnerabilities fixes and incident response. 161 appe.22945 Page 162 Friday February 15 2002 2 52 PM http www.sans.org The System Administrator and Network Security web site. It is an excellent source for research and education in the area of information security. http www.gocsi.com The Computer Security Institute web site. he source of the annual FBI CSI computer crime and security survey. http web.mit.edu kerberos www The MIT Kerberos web site. http www.de.easynet.net tacacs-faq The TACACS frequently asked questions web site with a focus on Cisco . http www.ietf.org html.charters OLD radius-charter.html The IETF RADIUS .