FreeBSD® Unleashed

Chapter 29. Network Security

In This Chapter

• Security Models

• Password Policies

• Problems with Cleartext Services

• Securing Terminal Traffic (OpenSSH)

• Securing E-mail Services (POP3 and IMAP)

• Securing FTP

• Securing Apache

• System Security Profiles and Kernel Security (securelevel)

• Using a Firewall

• Preventing Intrusions and Compromises

• Denial of Service (DOS) Attacks

• Physical Security

• Other Security Resources

Of all the topics near to a system administrator's heart, none is so hot as system security. It's arguably the most important part of any administrator's job, whether it's a Windows server, a commercial UNIX system, or FreeBSD. More books have probably been written about security theory, security practice, security neutralization, security philosophy, and ...