Linux security tutorials
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  • Using SETools to manage SELinux policies

    (presented by SearchEnterpriseLinux.com)

    Tip -  SETools can help SELinux administrators with the daunting task of writing, managing and reporting on policies with the help of tools such as apol, sediff, seaudit and sechecker. Our expert shows you how to setup SETools on your system and introduces you...

  • Chapter 2, Hardening the operating system, from "How to Cheat at Securing Linux"

    (presented by SearchEnterpriseLinux.com)

    Tip -  Secure your Linux sever, starting with the operating system. Get the essential how-to information from this excerpt from "How to Cheat at Securing Linux" by James Stanger.

  • How to use iptables against SSH attacks

    (presented by SearchEnterpriseLinux.com)

    Tip -  Here's how to use iptable-based methods to protect against hackers' Secure Socket Shell attacks.

  • Identity management and single sign-on (SSO)

    (presented by SearchEnterpriseLinux.com)

    Tip -  Learn about the challenges of identity management and how deploying single sign-on (SSO) can solve some of those issues, using popular programs like Kerberos, JA-SIG CAS and LDAP.

  • Improving Snort performance with Barnyard

    (presented by SearchEnterpriseLinux.com)

    Tip -  Increasing the speed and efficiency of intrusion-detection system application Snort means reduced false positives and more focus on actual threats. You can do this with Barnyard, a third-party application that leaves Snort with more capacity to...

  • Firekeeper configuration: Hardening your Firefox browser

    (presented by SearchEnterpriseLinux.com)

    Tip -  Enjoy safe browsing with Firekeeper, an IDS engine based on the same principles as Snort, that integrates with your Firefox browser. You'll find out how to handle alerts and configure white and black lists.

  • Platform and application security: Linux distributions, AppArmor and more

    (presented by SearchEnterpriseLinux.com)

    Tip -  Is AppArmor as good as SELinux? Which Linux distribution is the safest? An expert takes on these issues and more.

  • Bastille Linux: Introduction and installation

    (presented by SearchEnterpriseLinux.com)

    Tip -  Bastille Linux is an automated security tool, ideal for cross-platform environments. Get started here with an introduction and instructions for installation.

  • Qpsmtpd: MTA integration and testing

    (presented by SearchEnterpriseLinux.com)

    Tip -  Qpsmtpd is a Perl-based smtpd daemon used for spam prevention. In the final installment, we'll learn how to integrate qpsmtpd with the mail transfer agent and debug the setup.

  • Qpsmtpd: Configuration and plug-ins

    (presented by SearchEnterpriseLinux.com)

    Tip -  Qpsmtpd is a Perl-based smtpd daemon used for spam prevention. In the second part of this series, we will find out about different plugs-ins and how to configure qpsmtpd.