The authors are authorities on firewalls. This book has an extensive discussion of different types of firewalls, and their strengths and weaknesses. It describes potential attacks and tools used to launch the attacks. This comprehensive book discusses topics ranging from password vulnerabilities and policies to Unix permissions, dangerous accounts, log files, modems, network security, NFS, security incidents and firewalls. It does not provide extensive coverage on security tools.
Many companies specialize in Internet security products.
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