Allan Freitas allanfreitas

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

add_column
add_index
change_column
change_table
create_table
drop_table

Load lib files in production (Rails 5)

If you have your code defined in classes in lib/ folder you may have problems to load that code in production.

Autoloading is disabled in the production environment by default because of thread safety.

Change config/application.rb:

    config.autoload_paths << Rails.root.join("lib")
 config.eager_load_paths &lt;&lt; Rails.root.join("lib")

When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.

When loading a page with Opera VPN enabled, the browser sends a lot of requests to de0.opera-proxy.net with Proxy-Authorization request header.

The Proxy-Authorization header decoded: CC68FE24C34B5B2414FB1DC116342EADA7D5C46B:9B9BE3FAE674A33D1820315F4CC94372926C8210B6AEC0B662EC7CAD611D86A3 (that's sha1(device_id):device_password, where device_id and device_password come from the POST /v2/register_device API call, please note that this decoded header is from another Opera installation and thus contains

	yum install -y git git-core zlib zlib-devel gcc-c++ patch readline readline-devel \
	libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake \
	libtool bison curl sqlite-devel ImageMagick ImageMagick-devel mysql-devel

	cd ~
	git clone git://github.com/sstephenson/rbenv.git .rbenv
	echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
	echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

	git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

	#!/usr/bin/python
	import subprocess
	import os
	import sys

	#res = subprocess.Popen(['ls','-al','/ahome'],stdout=subprocess.PIPE,stderr=subprocess.PIPE);
	#output,error = res.communicate()

	#if res.returncode:
	# #raise Exception(error)

	# Advanced config for NGINX
	server_tokens off;
	add_header X-XSS-Protection "1; mode=block";
	add_header X-Content-Type-Options nosniff;

	# Redirect all HTTP traffic to HTTPS
	server {
	listen 80;
	server_name www.domain.com domain.com;
	return 301 https://$host$request_uri;

	#!/bin/sh

	set -ex

	PATH=/bin:/sbin:/usr/bin:/usr/sbin
	KEYMAP="us us"
	HOST=alpine
	USER=anon
	ROOT_FS=ext4
	BOOT_FS=ext4

	#!/bin/bash
	#
	# This script configures WordPress file permissions based on recommendations
	# from http://codex.wordpress.org/Hardening_WordPress#File_permissions
	#
	# Author: Michael Conigliaro <mike [at] conigliaro [dot] org>
	#
	WP_OWNER=www-data # <-- wordpress owner
	WP_GROUP=www-data # <-- wordpress group
	WP_ROOT=$1 # <-- wordpress root directory

	RESTORE=$(echo -en '\033[0m')
	RED=$(echo -en '\033[00;31m')
	GREEN=$(echo -en '\033[00;32m')
	YELLOW=$(echo -en '\033[00;33m')
	BLUE=$(echo -en '\033[00;34m')
	MAGENTA=$(echo -en '\033[00;35m')
	PURPLE=$(echo -en '\033[00;35m')
	CYAN=$(echo -en '\033[00;36m')
	LIGHTGRAY=$(echo -en '\033[00;37m')
	LRED=$(echo -en '\033[01;31m')

	mike@rbci:~$ psql -U postgres
	psql (9.0.3)
	Type "help" for help.

	postgres=# update pg_database set datallowconn = TRUE where datname = 'template0';
	UPDATE 1
	postgres=# \c template0
	You are now connected to database "template0".
	template0=# update pg_database set datistemplate = FALSE where datname = 'template1';
	UPDATE 1