Mo moughxyz

ActiveRecord: Store Milliseconds (or Microseconds) in Timestamps with Rails / MySQL

Milliseconds in your Timestamps.

We got 'em, you want 'em.

Why

Shit needs to be PRECISE

LICENSE

MIT

A pseudonymous trust system for a decentralized anonymous marketplace

Dionysis Zindros, National Technical University of Athens [email protected]

Keywords

pseudonymous anonymous web-of-trust identity trust bitcoin namecoin proof-of-burn timelock decentralized anonymous marketplace openbazaar

Abstract

On Tue Oct 27, 2015, history.state.gov began buckling under load, intermittently issuing 500 errors. Nginx's error log was sprinkled with the following errors:

2015/10/27 21:48:36 [crit] 2475#0: accept4() failed (24: Too many open files)

2015/10/27 21:48:36 [alert] 2475#0: *7163915 socket() failed (24: Too many open files) while connecting to upstream...

An article at http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/ provided directions that mostly worked. Below are the steps we followed. The steps that diverged from the article's directions are marked with an *.

* Instead of using su to run ulimit on the nginx account, use ps aux | grep nginx to locate nginx's process IDs. Then query each process's file handle limits using cat /proc/pid/limits (where pid is the process id retrieved from ps). (Note: sudo may be necessary on your system for the cat command here, depending on your system.)
Added fs.file-max = 70000 to /etc/sysctl.conf

Prerequisites : the letsencrypt CLI tool

This method allows your to generate and renew your Lets Encrypt certificates with 1 command. This is easily automatable to renew each 60 days, as advised.

You need nginx to answer on port 80 on all the domains you want a certificate for. Then you need to serve the challenge used by letsencrypt on /.well-known/acme-challenge. Then we invoke the letsencrypt command, telling the tool to write the challenge files in the directory we used as a root in the nginx configuration.

I redirect all HTTP requests on HTTPS, so my nginx config looks like :

server {

This demonstrates the implementation of full text search for documents in Indexed DB.

Word-breaking and stemming is used to create a list of terms for each document.
Document records are annotated with the list of terms when added to the database.
A multi-entry index on the list of terms is populated.
A query is similarly processed into a list of terms.
A join over the terms is implemented using multiple cursors on the index.

The necessity of annotating records with the word list to populate the index is a limitation of the current Indexed DB API. A feature request to support custom

	#!/bin/bash

	### Command log to install Cuda Toolkit 6.5, driver 343.22, and ccminer.

	## Update the system
	sudo apt-get update && sudo apt-get -y dist-upgrade
	# All the dependencies for Cuda & ccminer (I think)
	sudo apt-get -y install gcc g++ build-essential automake linux-headers-$(uname -r) git gawk libcurl4-openssl-dev libjansson-dev xorg libc++-dev libgmp-dev python-dev

	/*
	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2016 Esa-Matti Suuronen <esa-matti@suuronen.org>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	usage:
	letsencrypt [SUBCOMMAND] [options] [-d domain] [-d domain] ...

	The Let's Encrypt agent can obtain and install HTTPS/TLS/SSL certificates. By
	default, it will attempt to use a webserver both for obtaining and installing
	the cert. Major SUBCOMMANDS are:

	(default) run Obtain & install a cert in your current webserver
	certonly Obtain cert, but do not install it (aka "auth")
	install Install a previously obtained cert in a server

	RN < 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
	RN >= 0.50 - watchman watch-del-all && rm -rf $TMPDIR/react-native-packager-cache-* && rm -rf $TMPDIR/metro-bundler-cache-* && rm -rf node_modules/ && npm cache clean && npm install && npm start -- --reset-cache
	RN >= 0.63 - watchman watch-del-all && rm -rf node_modules && npm install && rm -rf /tmp/metro-* && npm run start --reset-cache

	npm >= 5 - watchman watch-del-all && rm -rf $TMPDIR/react-* && rm -rf node_modules/ && npm cache verify && npm install && npm start -- --reset-cache

	Windows - del %appdata%\Temp\react-native-* & cd android & gradlew clean & cd .. & del node_modules/ & npm cache clean --force & npm install & npm start -- --reset-cache

	// Tested on Android Nougat. Should work on previous versions of Android.
	// It's ugly but should get the job done

	/**
	* Set the color of the handles when you select text in a
	* {@link android.widget.EditText} or other view that extends {@link TextView}.
	*
	* @param view
	* The {@link TextView} or a {@link View} that extends {@link TextView}.
	* @param color