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Devops series – Automation with Puppet – Part1

 Overview If you are managing more than a dozen Linux systems, configuration management is a must. Without configuration management, updating system configuration files and deploying applications can become very challenging. This crash course is about using Puppet configuration management software to deploy and support Linux systems in...


Bash Scripting – Redirecting output in scripts

You can use the STDOUT and STDERR file descriptors in your scripts to produce output in multiple locations simply by redirecting the appropriate file descriptors. There are two methods for redirecting output in the script: Temporarily redirecting each line Permanently redirecting all commands in the script...


RHEL6 Installation and Security Bench Marking Recommendations – Part8

Configuring System Information and Warning Banners Presenting a warning message prior to the normal user login may assist the prosecution of trespassers on the computer system. Changing some of these login banners also has the side effect of hiding OS version information and other detailed system...


RHEL6 Installation and Security Bench Marking Recommendations – Part5

Logging and Auditing The items in this section describe how to configure logging, log monitoring, and auditing, using tools included with RHEL6. It is recommended that rsyslog be used for logging (with logwatch providing summarization) and auditd be used for auditing (with aureport providing summarization) to...


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