Stuck with troublesome configurations ? Looking for simple test tools ? Navixia's list of Links and Tools related to security can help you !

RSA : how to deal with defective tokens

• The correct procedure is explained here (in French).

Security Tests 

• Test your DNS configuration  http://www.dnsstuff.com/
• Test your proxy configuration http://www.eicar.org/anti_virus_test_file.htm or http://www.lagado.com/tools

Security Tools 

• Free SSH client for windows: Putty
• Free SCP client for windows: Winscp or FileZilla
• Free sniffer for windows: Wireshark
• Free LDAP browser: Softerra
• Microsoft Baseline Security Analyser: MBSA 
• Sysinternal: PsTools

Security Links

• Google Hack: http://johnny.ihackstuff.com/
• Find vulnerabilities for your devices in CVE database: http://www.cve.mitre.org/cve/