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  • Tech Blog

    Docker network

    Reading notes of “Docker DeepDive”. Docker networking is backed by libnetwork, which is an implementation of Container Network Model (CNM), an open-source pluggable architecture designed…

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  • Tech Blog

    DataStax Python Driver

    For someone with relational database background, analyzing data in Cassandra isn’t intuitive. There are two reasons. First, Cassandra data table is hardly updated or deleted…

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  • Tech Blog

    Performance Analysis

    Overview In 2015, Brendan Gregg posted two great articles on Netflix blog: Linux Performance Analysis in 60 seconds, and Linux Perfomrance Tools. They have great…

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  • Tech Blog

    Capture filter and Display filter in Network Analyzer

    Capture 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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  • Tech Blog

    Setup WSL2 (and Docker) on Windows 10

    This is not for Linux snobs, but rather for those who are stuck with a Windows work laptop, have to deal with Linux on a…

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  • Tech Blog

    Ansible at scale 2 of 2

    Template (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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