Interesting Way To View Log Files glTail.rb

View real-time data and statistics from any logfile on any server with SSH, in an intuitive and entertaining way.

glTail is a sick Ruby script by Erlend Simonsen. He made looking at log files actually fun.  glTail.rb uses OpenGL and Ruby to visualize logs in real time. glTail shows each HTTP requests in the shape of tiny bubbles which fly across the screen. glTail.rb utilizes net-ssh to connect to a server followed by libopengl-ruby to render the graphics. Parsers are included for processing Apache, Rails, IIS and Postfix log files. Check out the code here it’s definitely worth taking a look at it.


  • Real-Time
  • Multiple logfiles on multiple servers
  • Configurable layout
  • Multiple logfile parsers
    (Apache Combined, Rails, IIS, Postfix/spamd/clamd, Nginx, Squid, PostgreSQL, PureFTPD, MySQL, TShark, qmail/vmpop3d)
  • Custom events
  • Show rate, total or average
  • If you can ‘tail’ it, you can visualize it
  • Written in Ruby using net-ssh, chipmunk & ruby-opengl
  • Free! (GPLv2)


  • HTTP traffic
  • Response Time
  • Sales
  • Slow DB queries
  • Signups
  • Email traffic
  • Referrals
  • Shoutcast Listeners
  • FTP downloads
  • Server Logins
  • Exceptions

download glTail.rb here


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