m-2k

How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

m-2k

# Notes for installing on Samsung Series 9
# UEFI boot: LVM on LUKS
#
# See the full blog post:
# http://jasonwryan.com/blog/2013/01/25/uefi/

# check you are booted in uefi
modprobe efivars
ls /sys/firmware/efi/vars

m-2k

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

m-2k

server {
    listen       80;
    server_name  localhost;
    root       /Users/YOUR_USERNAME/Sites;
 
    access_log  /Library/Logs/default.access.log  main;
 
    location / {
        include   /usr/local/etc/nginx/conf.d/php-fpm;
    }

m-2k

//
// loads remote file using fetch() streams and "pipe" it to webaudio API
// remote file must have CORS enabled if on another domain
//
// mostly from http://stackoverflow.com/questions/20475982/choppy-inaudible-playback-with-chunked-audio-through-web-audio-api
// 

function play(url) {
  var context = new (window.AudioContext || window.webkitAudioContext)();

m-2k

var chunkedUrl = 'https://jigsaw.w3.org/HTTP/ChunkedScript';
fetch(chunkedUrl)
  .then(processChunkedResponse)
  .then(onChunkedResponseComplete)
  .catch(onChunkedResponseError)
  ;

function onChunkedResponseComplete(result) {
  console.log('all done!', result)
}

m-2k

// Description: fast and strong UUID generator for JavaScript
// Author: https://github.com/m-2k
// License: MIT

let uuid = () => Array.from(window.crypto.getRandomValues(new Uint8Array(16))).reduce((acc, byte, idx) => {
    switch(idx) {
        case 6: acc += "-4"; break
        case 8: acc += "-" + ((byte & 0xF) & 0x3 | 0x8).toString(16); break
        case 10: case 4: acc += "-"
        default: acc += (byte & 0xF).toString(16)

m-2k

Keybase proof

I hereby claim:

• I am m-2k on github.
• I am m2k (https://keybase.io/m2k) on keybase.
• I have a public key ASBQ3vb7NveFw4ZbfUA1Rb_fKaQC4ydfIE7uYJTGFMhK-wo

To claim this, I am signing this object:

m-2k

#!/bin/sh
###
#
# Change Tor exit node
#
# Sometimes when using Tor you'd like to change the IP address that
# servers see when you connect (that is, change your Tor exit node).
# This happens automatically from time to time, but this shell script
# lets you force it.
#

m-2k

Setup NAT routing (server)

• Setup redirecting 25 port to 2525 port for ens3 interface

iptables -t nat -A PREROUTING -i ens3 -p tcp --dport 25 -j REDIRECT --to-port 2525

• Show config sudo iptables -t nat -L -n -v
• Save config sudo iptables-save