Linux system security best practices

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  • Blocking unauthorized IPs

    Security expert James Turnbull offers two ways for blocking unauthorized IPs.  Ask the Expert

  • Passphrases instead of passwords on Red Hat, part 2

    Passphrases may be a good alternative to passwords for corporate security. This tip discusses how to configure Red Hat to support passphrases.  Tip

  • Passphrases instead of passwords on Red Hat, part 1

    Passwords may not be the perfect security control for corporate environments, because they are so easily tackled by attackers. Passphrases may provide a better solution, says James Turnbull in this tip, and Red Hat already includes the capability to ...  Tip

  • SELinux Policy Editor: Removing micromanagement from administrative control

    It can be tough to handle extended security attributes across a range of users, processes and files or directories that encompass more than one server. Enter SELinux Policy Editor, seedit, which offers a suite of native front-end administration util...  Tip

  • New Directory Server capabilities coming in RHEL5

    In the upcoming Red Hat Enterprise Linux 5 server distribution, Red Hat Directory Server will be more than a switchboard of IT information. Added identity management features will build up security while easing administration hassles, says Red Hat ex...  Article

  • Beta flaws vs. security flaws

    Security expert James Turnbull explains why beta flaws can be mistaken for security threats and compares desktop security between Linux and Windows.  Ask the Expert

  • Trojans, viruses and targeted browsers

    Security expert James Turnbull debunks the myth that Firefox is safer than IE or Opera.  Ask the Expert

  • IPSec in the 2.6 kernel

    Security expert James Turnbull recommends a resource explaining the implementation of IPSec in the 2.6 kernel.  Ask the Expert

  • Choosing the most secure distribution

    Security expert James Turnbull opines on the most secure distribution and what criteria to consider when choosing a distribution.  Ask the Expert

  • Cryptographic file system support in the 2.6 kernel

    Security expert James Turnbull offers resources for information on cryptographic file system support in the 2.6 kernel.  Ask the Expert

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