Category Archives: Linux

LCA2018 Sydney

For the past 1 week, I had been attending #lca2018 @Sydney. It was a marvelous event and I got to meet up with a lot of Linux experts and Open Source Community people. The event was very packed and got … Continue reading

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Ansible 101 – part 1

‘So, you think you know “Ansible”? Show me!’ I am still learning in the Ansible world, and it is a really my current “swiss army knife” in my Linux toolbox. I use ansible to do ad-hoc job, or some partial … Continue reading

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It had been awhile …

Yes, it had been awhile since I posted anything in my blog here. Is not that I stopped learning about Linux nor any open-source innovation, is just I got to sorted out my priority – moving the family to be … Continue reading

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How to find out the top 10 files/folders in homedir

Many times, a linux user had exceed the disk quota of homedir, so here is a small command to find out the top 10 files/folders that consumed the most in homedir: du -xck ~/.[^.]* |sort -rn |head Note: “~/” – … Continue reading

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Matlab – tips and tricks

Would like to ensure all additional MATLAB support packages are installed on the share location: 1. launch matlab as “root” user 2. find out the current support package root (default is homedir: matlabshared.supportpkg.getSupportPackageRoot() 3. set it to a share location: … Continue reading

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cfengine2 segfault – culprit ipv6 in kickstart

I had been troubleshooting cfengine segfault for days and finally found the issues: Network setup in the kickstart %post had enable networking_ipv6, which confuse cfengine It was a broken kickstart since long time ago, and the workaround was rerun “cfagent” … Continue reading

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How to plot sysstat (SAR) into a beautiful graph?

In the past, I had been using kSar to quickly plot graphs from sar files that I had collected from the systems, but I would really prefer a system that it can consolidate all the sar reports from various systems … Continue reading

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