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Category: Education

CentOS 6.5 Configuration Tips

By far, Linux (Centos) is the most robust server system that any decent IT guy can ask for. It is secure and very flexible. In the server management world, its vast user base can attest to its quality. However, Linux installation and configuration is not without challenges. But all tips and workarounds are on the Internet, so the problem is not a function of difficulty, but time.

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How to Purge Linux’s Cached Memory

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If like me, you manage your own Linux servers, it is essential to know how to release its cached memory. In a nutshell, Linux always tries to use RAM to speed up disk operations. It uses available memory for buffers (file system metadata) and cache (pages with actual contents of files or block devices). This helps the system to run faster because disk information is already in memory which saves I/O operations. If space is needed by programs or applications like MySQL, Linux will free the buffers and cache to provide memory where it is needed.

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Role Reversal

Come Saturday, 05 June 2010, I will be trying my hand on classroom-teaching. Despite my experience in facilitating mini-LAMP training sessions, project/product demonstration and showcasing,…

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