Nginx SSL setup for multiple ports

This blog is related to setup SSL cert over Nginx server if you have .cert & .key file then you are able to setup this SSL If you don't have any please create locally or purchase from SSL provides.

SSL give use a secure socket protection which help to keep our domain / website heathy.

Below is the simple steps .

1) Upload your .cert & .key file on your server like Amazon Ec2 / Digital Ocean using any tool or "scp" ubuntu command.

2) Install Nginx on your server.
 

• sudo apt-get update
• sudo apt-get install nginx

3) After successfully installation you need to create a ssl_certs Folder in /etc/nginx/
mkdir /etc/nginx/ssl_certs please check once if the folder is already exist then don't need to create the folder again .

4) Put your .cert & .key file in /etc/nginx/ssl_certs folder

5) Edit: /etc/nginx/sites-available/default and add your domain as per my given configuration.

6) Restart you nginx server

sudo systemctl restart nginx # New version of Ubuntu 16.04
sudo service nginx restart # older version of Ubuntu 14.04

	# Location of this file : /etc/nginx/sites-available/default
	# This configuration for NodeJs application but the configuration is same for other framework also like ruby-on-rails.
	# Make sure if you have AWS EC2 instance then please open the HTTPS port to serve the application on Https protocols.
	# Also if you need extra port on same domain enable thoes port over AWS EC2 instance.
	# In this configuration I am using same domain but with different port.
	server {
	listen 80;
	server_name your.domain.com;
	# return 301 https://$server_name$request_uri;
	location / {
	proxy_pass http://127.0.0.1:8081/;
	}
	}
	server {
	listen 443;
	ssl on;
	ssl_certificate /etc/nginx/ssl_certs/xxx_xxx_example.crt;
	ssl_certificate_key /etc/nginx/ssl_certs/xxx_example.key;
	server_name your.domain.com;
	access_log /var/log/nginx/access.log;
	error_log /var/log/nginx/error.log;
	location / {
	proxy_pass http://127.0.0.1:8081;
	proxy_http_version 1.1;
	proxy_set_header Upgrade $http_upgrade;
	proxy_set_header Connection 'upgrade';
	proxy_set_header Host $host;
	proxy_cache_bypass $http_upgrade;
	}
	}
	# This is for the other node Js backend server to deal with mongodb API
	server {
	listen 8082;
	ssl on;
	ssl_certificate /etc/nginx/ssl_certs/xxxx_example.crt;
	ssl_certificate_key /etc/nginx/ssl_certs/xxxx_example.key;
	server_name your.domain.com;
	access_log /var/log/nginx/access.log;
	error_log /var/log/nginx/error.log;
	location / {
	proxy_pass http://localhost:7001;
	proxy_http_version 1.1;
	proxy_set_header Upgrade $http_upgrade;
	proxy_set_header Connection 'upgrade';
	proxy_set_header Host $host;
	proxy_cache_bypass $http_upgrade;
	}
	}

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Piwik database using Ruby script in Rails Framework

Ruby script for connecting Piwik Database in rails

One of my client I have two different application/Framework 1.Piwik: Which is used as a Analytic framework for tracking all the activites of a web sites and you can store your analytic data in your server basic need for using piwik it's free and easy to integrate with any application and it is provide very good support if you are a paid customer but it's available free also .

So why we need to integrate that PIWIK database in Rails ! Actually we had a requirement to show Analytic dashboard of piwik for some of the Account holder so our Admin maually create the client app on Piwik and we populating that piwik token and other stuff via connecting the Piwik database .

	require 'mysql'
	module Piwik
	#--------------query for piwik database for getting token of user-----------
	def piwik_tokens
	!connection_piwik.nil? ? @rs = connection_piwik.query('select login, token_auth from enbake_piwik_user;') : "#{["Connect-Piwik-Sever"]}"
	!@rs.nil? ? result : ["Connect-Piwik-Sever"]
	end
	#--------------------query for site_ids for clients dashboard----------------
	def piwik_site_ids
	!connection_piwik.nil? ? @rs = connection_piwik.query("select name, idsite from enbake_piwik_site;") : "#{["Connect-Piwik-Sever"]}"
	!@rs.nil? ? result : ["Connect-Piwik-Sever"]
	end
	#----------------creating connection for piwik database with mysql adapter-------
	private
	def connection_piwik
	Mysql.new('localhost', 'root', 'a', 'enbake')
	rescue Mysql::Error => e
	# Print the error.
	puts "ERROR #{e.errno} (#{e.sqlstate}): #{e.error}"
	puts "Can't connect to the MySQL database specified."
	# Signal an error
	ensure
	end
	#---------------------------data for dropdown-----------------------
	def result
	@data = Array.new
	@rs.each do |f|
	f[0] = "#{f[0]}-#{f[1]}"
	@data = @data << f
	end
	connection_piwik.close
	@data
	end
	end

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Easy way to create dump of mongodb database Raw

Dump from MogoDB server :)

Below method are used for creating dump of mongodb database..

mongodump --host xxx.xxx.xx.xxx --port xxxx --out /home/enbake/Documents/

mongodump --host [localhost] --port [portno] --out /home/enbake/Documents/

Below method are used for restore dump into local mongodb database..

mongorestore -d mydatabase /home/enbake/Documents/mydatabase_backup

mongorestore -d [local-database-name] [path-of-dump-folder]

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Installing node version in centos 7 ( Digital Ocean )

Below are the some command which is use-full if you Installing node version in centos 7

su -

yum install gcc-c++ openssl-devel

cd /usr/local/src

$ wget https://raw.github.com/isaacs/nave/master/nave.sh

$ chmod +x nave.sh

$ ./nave.sh install 0.8.8

$ ./nave.sh use 0.8.8

$ node -v v0.8.8

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Showing uploaded File in Iframe using Javascript

	$(document).on("input",".upload", function(){
	var src = $(this).val();
	src = src.replace("watch?v=", "v/");
	src = src.replace("video/", "embed/video/");
	var abc="<iframe src='my_source' width='452' height='345' scrolling='no' frameborder='no' target='_top' allowFullScreen></iframe>".replace(/my_source/g,src);
	if (src.match(/(youtube|youtu|vimeo|veoh|dailymotion|kickstarter|metacafe)\.(com|be)\/((watch\?v=([-\w]+))|(video\/([-\w]+))|(projects\/([-\w]+)\/([-\w]+))|([-\w]+))/)) {
	$(this).next('#thumbs').empty().append(abc);
	}
	else if( src.match(/^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.mp4|.MP4|.avi|.AVI|.3gp|.3GP)$/)) {
	$(this).next('#thumbs').empty().append(abc);
	}
	else{$(this).next('#thumbs').empty();}
	});

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Nokogiri ERROR: Failed to build gem native extension.

Problem with Nokogiri Gem in Mac OS

Setup Rails project in Ubuntu system is pretty much easy for me,  one of my friend when I am setup the Rails porject in Mac OS I found some error during intallation which is related to Nokogiri Gem.

Building nokogiri using system libraries.

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb --use-system-libraries
Building nokogiri using system libraries.
libxml2 version 2.6.21 or later is required!
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
    --help
    --clean
    --use-system-libraries
    --with-zlib-dir
    --without-zlib-dir
    --with-zlib-include
    --without-zlib-include=${zlib-dir}/include
    --with-zlib-lib
    --without-zlib-lib=${zlib-dir}/lib
    --with-xml2-dir
    --without-xml2-dir
    --with-xml2-include
    --without-xml2-include=${xml2-dir}/include
    --with-xml2-lib
    --without-xml2-lib=${xml2-dir}/lib
    --with-libxml-2.0-config
    --without-libxml-2.0-config
    --with-pkg-config
    --without-pkg-config
    --with-xslt-dir
    --without-xslt-dir
    --with-xslt-include
    --without-xslt-include=${xslt-dir}/include
    --with-xslt-lib
    --without-xslt-lib=${xslt-dir}/lib
    --with-libxslt-config
    --without-libxslt-config
    --with-pkg-config
    --without-pkg-config
    --with-exslt-dir
    --without-exslt-dir
    --with-exslt-include
    --without-exslt-include=${exslt-dir}/include
    --with-exslt-lib
    --without-exslt-lib=${exslt-dir}/lib
    --with-libexslt-config
    --without-libexslt-config
    --with-pkg-config
    --without-pkg-config

extconf failed, exit code 1

Gem files will remain installed in /Users/myuser/projectpath/vendor/bundle/ruby/2.0.0/gems/nokogiri-1.6.2.rc2 for inspection.
Results logged to /Users/myuser/projectpath/vendor/bundle/ruby/2.0.0/extensions/universal-darwin-13/2.0.0/nokogiri-1.6.2.rc2/gem_make.out
An error occurred while installing nokogiri (1.6.2.rc2), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.2.rc2'` succeeds before bundling.

After googling I found a way to resolve that issue .

brew install libxml2
bundle config build.nokogiri "--use-system-libraries --with-xml2-include=/usr/local/opt/libxml2/include/libxml2"
bundle install

Happy coding :)

Shell Scripting in Ruby :) Fun time or Free time

	#!/usr/bin/ruby -w
	#system('ls -la') #=> outputs the output of that command
	#system('skype') #open skype using system command.
	#http://www.dreamsyssoft.com/ruby-scripting-tutorial/loops-tutorial.php
	require 'optparse'
	options = {:name => nil, :age => nil}
	parser = OptionParser.new do|opts|
	opts.banner = "Usage: ruby_linux.rb [options]"
	opts.on('-n', '--name name', 'Name') do |name|
	options[:name] = name;
	end
	opts.on('-a', '--age age', 'Age') do |age|
	options[:age] = age;
	end
	opts.on('-h', '--help', 'Displays Help') do
	puts opts
	exit
	end
	end
	parser.parse!
	if options[:name] == nil
	print 'Enter Name: '
	options[:name] = gets.chomp
	end
	if options[:age] == nil
	print 'Enter Age: '
	options[:age] = gets.chomp
	end
	sayHello = 'Hello ' + options[:name] + ', '
	if Integer(options[:age]) == 100
	sayAge = 'You are already 100 years old!'
	elsif Integer(options[:age]) < 100
	sayAge = 'You will be 100 in ' + String(100 - Integer(options[:age])) + ' years!'
	else
	sayAge = 'You turned 100 ' + String(Integer(options[:age]) - 100) + ' years ago!'
	end
	puts sayHello + sayAge

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Creating Page Object in AngularJS

Below are the sample of a page object in AngularJs

	'use strict';
	var AngularPage = function () {
	browser.get('http://www.angularjs.org');
	};
	AngularPage.prototype = Object.create({}, {
	todoText: { get: function () { return element(by.model('todoText')); }},
	addButton: { get: function () { return element(by.css('[value="add"]')); }},
	yourName: { get: function () { return element(by.model('yourName')); }},
	greeting: { get: function () { return element(by.binding('yourName')).getText(); }},
	todoList: { get: function () { return element.all(by.repeater('todo in todos')); }},
	typeName: { value: function (keys) { return this.yourName.sendKeys(keys); }},
	todoAt: { value: function (idx) { return this.todoList.get(idx).getText(); }},
	addTodo: { value: function (todo) {
	this.todoText.sendKeys(todo);
	this.addButton.click();
	}}
	});
	module.exports = AngularPage;

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Changing the version of pod in MAC EI captain

Below are the basic steps for changing the version of pod in MAC EI captain

	1. gem uninstall cocoapods
	2. rvm get stable --auto-dotfiles
	3. rvm use ruby-2.1.2
	4. rvm osx-ssl-certs update all
	5. rvm rubygems latest
	6. sudo gem sources -r https://rubygems.org/
	7. sudo gem sources -a http://rubygems.org/
	8. gem install cocoapods -v 1.0.0.beta.1 --pre -V

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Auto Rotation Script for Tracker

A simple Test script which help you to rotate the screen via script.

This is usefull for lazy personal who have only one task "RUN TRACKER :)" "not me for me....! ;)"

	#!/usr/bin/env python
	#To run this script in terminal first to install this dependancy: sudo apt-get install xdotool
	#To make it excutable GoTo the file directory and run the command: chmod u+x upwork_tracker_free_time.rb
	#Now you just need to run this file using form termial :~ ./upwork_tracker_free_time.rb
	#Note: You need to specifiy every on which work space you want to swicth tab currently In code I am only swithching termial
	#But you can also switch browser tab or sublim tabs subprocess.call("xdotool key ctrl+Tab" ,shell=True)
	#Enjoy :)
	import subprocess
	import time
	subprocess.call("xdotool key ctrl+alt+Up" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Left" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Right" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Left" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Right" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Left" ,shell=True)
	time.sleep(60)
	subprocess.call("xdotool key ctrl+alt+Right" ,shell=True)
	subprocess.call("xdotool key ctrl+alt+Left" ,shell=True)

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