Tag: sysadmin
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Capture filter and Display filter in Network Analyzer
ReadCapture filter is set before collecting packets. It is applied at the time of data acquisition and it impacts the size of the capture. It…
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Ansible at scale 2 of 2
ReadTemplate (with Jinja2) and files In an Ansible role, we can use files or templates to achieve similar results for configuration files. If the configuration…
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Ansible at scale 1 of 2
ReadThe Ansible In Depth white paper outlines Ansible’s use cases in four categories: Configuration management Application deployment Orchestration: for coordinating a multi-machine process such as…
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Cassandra data model (as opposed to relational model)
ReadBad data model design with Cassandra causes chronic pains as application scales. I had to re-read about data model design in “Cassandra – the Definitive…
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How memory usage adds up in Linux
ReadThere are too many metrics that describes some aspects about memory in Linux. Further to an old article on this site, where several concepts were…