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Sample config for 2 million web socket connection

    sysctl -w fs.file-max=12000500
    sysctl -w fs.nr_open=20000500
    # Set the maximum number of open file descriptors
    ulimit -n 20000000

    # Set the memory size for TCP with minimum, default and maximum thresholds 
 sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

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# Install dependencies
# 
# * checkinstall: package the .deb
# * libpcre3, libpcre3-dev: required for HTTP rewrite module
# * zlib1g zlib1g-dbg zlib1g-dev: required for HTTP gzip module
apt-get install checkinstall libpcre3 libpcre3-dev zlib1g zlib1g-dbg zlib1g-dev && \

mkdir -p ~/sources/ && \

# Compile against OpenSSL to enable NPN

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About

This gist will show how to setup Raspbian Stretch as a headless Bluetooth A2DP audio sink. This will allow your phone, laptop or other Bluetooth device to play audio wirelessly through a Rasperry Pi.

Motivation

A quick search will turn up a plethora of tutorials on setting up A2DP on the Raspberry Pi. However, I felt this gist was necessary because this solution is:

• Automatic & Headless - Once setup, the system is entirely automatic. No user iteration is required to pair, connect or start playback. Therefore the Raspberry Pi can be run headless.
• Simple - This solution has few dependencies, readily available packages and minimal configuration.
• Up to date - As of December 2017. Written for Raspbian Stretch & Bluez 5.43

Prerequisites