Sharing some random tidbits I learned throughout the week.

• The pandas python library provides data structures for working with relational or “labelled” data.
• Overfitting is when a data model fits itself to “noise”.
• In Chrome, option-delete deletes the last word typed.
• vcr records HTTP interactions to replay them during future tests.
  • Records response as a fixture in .yml format
• CloudFlare is a service that allows you to route web traffic through their global network.
  • Take advantage of their CDN so that your content is closer to visitors
  • Block abusive bots and crawlers by intercepting requests and presenting them with a challenge page
  • Free SSL
• SSL or Secure Sockets Layer is used in order to encrypt data to and from your web server.
  • Visitors can verify that they are not on an imposter site
  • Improved Google search ranking
  • Visitors can verify that website content has not been modified in transit
    • When you use free wi-fi, proxy usually will modify content with addition of ads if no SSL
• HSTS or HTTP Strict Transport Security is a header that allows a website to specify and enforce a security policy in client web browsers.
  • Prevent downgrade attacks/SSL stripping
    • Form of man-in-the-middle attack where an attacker can redirect web browser from HTTPS webserver to attacker controlled server
    • Turns all HTTP links into HTTPS links
    • Upgrades SSL warnings and bypassable errors into non-bypassable errors
• Rubocop is a static code analyzer to enforce the ruby style guide.
  • Static code analysis means examining the code without executing the program.
• Weekly Vim
  • There is a neat vim plugin called vim-surround that makes it easy to change and add surroundings in pairs.