jagira

Securing the server

Securing a server is a continuous process as new vulnerabilities are discovered everyday. But you will be relatively safe if you take some basic security measures like locking root access, not allowing password authentication, setting up a basic firewall and log watching mechanism and enabling automatic updates.

1. Login as root and update package list and upgrade tools.

jagira

jagira

# Take backup
pg_dump -F c -v DATABASE_NAME -f FILENAME.sql

# Restore from backup
pg_restore --verbose --clean --no-owner --no-acl --dbname DATABASE_NAME FILENAME.sql

jagira

# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

jagira

defmodule ListToRange do

  def generate(list) do
    generate(list, [])
  end

  def generate([_], accumulator) do
    accumulator
  end

jagira

class BrowseController < ApplicationController

  # params - username, count 
  def tweets
    @tweets = Twitter.fetch_tweets(params[:username], params[:count])
    render json: @tweets
  end
  
end

jagira

* Write a small web service (using Sinatra, Padrino, Rails or Rack if you are adventurous) that fetches and returns 10 (or any user specified number) latest tweets for the specified username.

* Architect the app according to your own taste.

* Rough specs
  
  - It should have only one controller endpoint. For example,
    '/tweets'
  
  - The endpoint should accept a twitter username and tweet count (default set to 10). For example,

jagira

http://www.kalzumeus.com/2006/06/29/my-competition/
http://www.kalzumeus.com/2006/06/29/guestimating-market-size/
http://www.kalzumeus.com/2006/06/29/from-visitor-to-downloader-to-purchaser/
http://www.kalzumeus.com/2006/06/30/unexpected-expenditure-great-marketing-idea/
http://www.kalzumeus.com/2006/07/01/so-i-hit-the-big-red-button-and-went-away-for-six-hours/
http://www.kalzumeus.com/2006/07/01/cows-milk-and-conversions/
http://www.kalzumeus.com/2006/07/02/rock-on-google/
http://www.kalzumeus.com/2006/07/02/yahoo-advertising-vs-google-advertising/
http://www.kalzumeus.com/2006/07/03/must-not-get-blinded-by-the-trees/
http://www.kalzumeus.com/2006/07/04/day-11-first-page-of-google/

jagira

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jagira

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