mkhairi

# Permissions cheatsheet

`chmod [a]bcd`

* bit a — sticky:1/setgid:2/setuid:4 (optional, default: 0)
* bit b — owner    | x:1/w:2/r:4 - xw:3/xr:5/wr:6/xwr:7
* bit c — group    | x:1/w:2/r:4 - xw:3/xr:5/wr:6/xwr:7
* bit d — everyone | x:1/w:2/r:4 - xw:3/xr:5/wr:6/xwr:7

note: only file/dir owner can chmod it

mkhairi

class ApplicationController < ActionController::Base
  include Pundit

  # Verify that controller actions are authorized. Optional, but good.
  after_filter :verify_authorized,  except: :index
  after_filter :verify_policy_scoped, only: :index

  rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized

  private

mkhairi

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

mkhairi

Commands examples

If the namespace is not used then the commands will perform on top of the default database. bundle exec rake db:create bundle exec rake db:migrate

By using the namespace we are going to use all the configuration for our alternate DB. bundle exec rake store:db:create bundle exec rake store:db:migrate

mkhairi

require 'csv'
@servers =["server_ip1","server_ip2", "server_ip3"]

list = {}
host = []
result = {}


CSV.foreach("mx_records.csv") do |row|