title: How to code a Download/Upload Speed Monitor in PHP,Python, or Java?
body: <p>I have to code a up/download speed monitor. It will obtain the current download and upload transfer speed of the computer which it has been installed and post it to another server periodically.
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  But I don't have an idea about how to catch instant transfer rates of a computer. As you know some of network monitoring programs can trace it but I could not find anything written in PHP, Python or Java?</p>