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SELinux: A fast guide to the Linux kernel security tool
This handy guide to SELinux presents the best tips and advice on getting started with the Linux kernel security tool – from configuration to managing policies and access control. Fast Guide
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Linux security guide: Linux, open source security tools and tips
Start hardening your Linux servers with this guide to essential tools and applications for Linux security, including SELinux, Nagios, firewalls and more. Learning Guide
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Guide to the Linux security toolbox
Linux security software and tools are always changing. Learn which ones to use for your open source system and how to configure them according to your needs in this newly updated guide. Fast Guide
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Linux security: Top 10 tips
Harden your Linux security further with these tips on Bash, the command line, PAM, Novell's AppArmor and more. 10 Tips in 10 Minutes
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IT professionals' learning center
Check out our most popular chapter downloads that cover Linux security, virtualization and more. Then, take a look at what the authors have to say. Chapter Download Library
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Nessus Technical Guide
Nessus Technical Guide Learning Guide
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For Linux security, principle of least privilege prevails, says Red Hat security expert
A Linux security expert outlines best practices, from granting admins the least system access possible to the importance of system audits and when to turn on listening daemons. Article | 15 Jul 2008
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Red Hat Enterprise Linux 5, JBoss to receive security boost
Red Hat has announced that Red Hat Enterprise Linux 5 (RHEL 5) will now be subject to the Common Criteria certification and HP will offer multilevel security services for RHEL 5. Article | 06 Nov 2007
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With RHEL 5, Red Hat goes to bat for SELinux
Told to keep SELinux turned on everywhere, all the time, many IT managers have to break a long established habit of turning it off. But, it should stay on, according to Red Hat's Dan Walsh, who says it's the only way to ensure 100% protection in the ... Article | 05 Jun 2007
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Five ways SELinux may surprise you
In the column that follows, author and SELinux expert Frank Mayer will walk you through five of the ways that this venerable Linux security technology may surprise you. Column | 03 May 2007
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Firefox fans unfazed by IE 7
IT administrators like the security improvements in IE 7. But for those who use Firefox, Microsoft's browser upgrade isn't enough to make them switch. Article | 31 Oct 2006
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Author dishes on SELinux enhancements to RHEL5
The reason SELinux is complex is because Linux is a full-featured OS that requires it, said one expert. The next version of Red Hat Linux aims to simplify things with out-of-the-box policy modules that can ship with an application. Article | 16 Oct 2006
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Firms find open source way to save over HP OpenView
For one-tenth the cost of systems management software from Hewlett-Packard and the like, IT managers chose an outsourced solution based on the open source Nagios stack. Article | 09 Oct 2006
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Mozilla still looking into Firefox flaw claims
Although two hackers confessed that the JavaScript vulnerability they found was a hoax, Mozilla still wants to be sure. Article | 09 Oct 2006
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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 | 17 Aug 2006
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Security Bytes: Firefox, Microsoft under attack
The exploits target issues Microsoft patched earlier this month. Meanwhile, flaws are reported in Oracle for OpenView and a Mozilla Firefox keystroke logger is on the loose. Article | 26 Jul 2006
- See More: News on Linux system security best practices
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Signing Linux RPM files using a Gnu Privacy Guard key
Signing Linux RPM packages assures users of the package that the RPM has not been tampered with. Learn how to create a Gnu Privacy Guard key and sign your RPM packages. Tip
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Red Hat Enterprise Linux security mechanisms: SELinux, iptables and more
When setting up Red Hat Enterprise Linux on your data center servers, you need to make security decisions. Learn about security options for RHEL including SELinux, iptables firewall, TCP Wrapper and application security use considerations. Tip
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Physical security threats to your Linux systems
Strong Linux network security can be meaningless if physical security is compromised. In this tip, a security expert outlines some common Linux physical security threats. Tip
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Common Linux security policy management gaps
Linux security is commonly overlooked in IT security policies, especially when management is out of touch with what’s happening on the ground. Tip
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Finding password weaknesses in your Linux systems
Getting through the security of your Linux systems might be easier than you think. Prevent unauthorized access by searching out unexpected password weaknesses. Tip
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Using kickstart and understanding packages for RHEL 5.4 hardening
While wholesale installation of Red Hat is the easiest method, it is not the safest for an enterprise Linux server use. Using kickstart and understanding packages in RHEL 5.4 can save a Linux admin a lot of time later dealing with patches and will pr... Tip
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Hardening Linux with Bastille UNIX
Ensure your security by hardening the Linux operating system with either Bastille UNIX or through manual hardening best practices. Tip
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Security essentials for Active Directory on Linux
Active Directory functionality in heterogeneous data centers with Windows and Linux is increasingly appealing, but admins should be aware of the security risks this activity poses. The open admin policy on Active Directory doesn't adequately protect ... Tip
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A look at real-world exploits of Linux security vulnerabilities
From unprotected NetBIOS shares, null sessions in Samba, to poorly configured FTP servers, your Linux system may be open and waiting for hackers. Learn how hackers can get into your Linux servers through these weaknesses and what you can do to secure... Tip
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Five common Linux security vulnerabilities you may be overlooking
Contrary to popular belief, Linux has security risks, that if not addressed can lead to malicious attacks of your system. Linux system administrators need to make security vulnerability testing a priority. Tip
- See More: Tips on Linux system security best practices
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Why use SEL (security-enhanced Linux)?
Ask the Expert
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Setting up SSH for remote, secure server access
A Linux security expert gives non-operating system specific advice on setting up Secure Shell (SSH) for remote access from a server. Ask the Expert
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Securing Fedora Core 5 against attackers
A Linux security expert recommends several best practices for hardening your Fedora Core 5 proxy server. Ask the Expert
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Locking down open relays
A security expert recommends two tools to determine if your mail server is an open relay and has been compromised. Ask the Expert
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Licensing and application security
Security expert James Turnbull explains that licensing restrictions can provide safeguards but not a complete defense. Then, he recommends what to look for when considering the security of an application. Ask the Expert
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Application security on Linux, Solaris and AIX
A security expert explains why security superiority of Linux, Solaris or AIX isn't as simple as a yes or no. Ask the Expert
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AppArmor vs. SELinux
An expert says that, yes, AppArmor does offer equivalent security to SELinux. Ask the Expert
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Linux vs. Windows security
An expert describes what makes Linux more secure than Windows. Ask the Expert
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Using AppArmor on Red Hat
A user wonders whether it is possible to use AppArmor in the place of SELinux on Red Hat Enterprise Linux 4 and learns about both security tools. Ask the Expert
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Bugs in different OS versions of OSS apps
Ask the Expert
- See More: Expert Advice on Linux system security best practices
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Signing Linux RPM files using a Gnu Privacy Guard key
Signing Linux RPM packages assures users of the package that the RPM has not been tampered with. Learn how to create a Gnu Privacy Guard key and sign your RPM packages. Tip
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SELinux: A fast guide to the Linux kernel security tool
This handy guide to SELinux presents the best tips and advice on getting started with the Linux kernel security tool – from configuration to managing policies and access control. Fast Guide
-
Red Hat Enterprise Linux security mechanisms: SELinux, iptables and more
When setting up Red Hat Enterprise Linux on your data center servers, you need to make security decisions. Learn about security options for RHEL including SELinux, iptables firewall, TCP Wrapper and application security use considerations. Tip
-
Physical security threats to your Linux systems
Strong Linux network security can be meaningless if physical security is compromised. In this tip, a security expert outlines some common Linux physical security threats. Tip
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Linux security guide: Linux, open source security tools and tips
Start hardening your Linux servers with this guide to essential tools and applications for Linux security, including SELinux, Nagios, firewalls and more. Learning Guide
-
Common Linux security policy management gaps
Linux security is commonly overlooked in IT security policies, especially when management is out of touch with what’s happening on the ground. Tip
-
Guide to the Linux security toolbox
Linux security software and tools are always changing. Learn which ones to use for your open source system and how to configure them according to your needs in this newly updated guide. Fast Guide
-
Finding password weaknesses in your Linux systems
Getting through the security of your Linux systems might be easier than you think. Prevent unauthorized access by searching out unexpected password weaknesses. Tip
-
Using kickstart and understanding packages for RHEL 5.4 hardening
While wholesale installation of Red Hat is the easiest method, it is not the safest for an enterprise Linux server use. Using kickstart and understanding packages in RHEL 5.4 can save a Linux admin a lot of time later dealing with patches and will pr... Tip
-
Hardening Linux with Bastille UNIX
Ensure your security by hardening the Linux operating system with either Bastille UNIX or through manual hardening best practices. Tip
- See More: All on Linux system security best practices
About Linux system security best practices
Having the best available tools and understanding the basics of Linux system security will ensure that your systems are well-monitored and protected from scanning and cracking tools and other common attacks. Keep Linux system security on your mind with tips and advice on managing security policies, privacy issues and other Linux security best practices. This topic also covers Linux crashes, phishing prevention, best practices for Linux kernel vulnerabilities, choosing the most secure Linux distribution, Linux security administration and firewall implementation.