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robots.txt for Entire Development Server

I have a development server I use to let users play around or load a site up with content before it goes live. On this server I have virtual hosts for each site. None of the information on these development sites are really secret, but I don't want these sites to end up on Google search results. I also don't want to add the extra complexity of having a username and password protecting the sites or restricting anything to a specific IP range.

Finding iptables Rule Numbers

A lot of commands for iptables work with targeting a specific rule number. To find the rule we usually run iptables --list. Then I always forget if the rule numbers start at zero or one (it's one) and then have to manually count through the dozen or more rules I have in place. I'm never confident I'm targeting the correct rule, causing me a bunch of headaches. No iptables tutorials I ever encountered or even the iptables man page easily lets you know that you can add the --line-numbers to display the rule number. Hopefully this will help other people out.

Using a Bookmarklet to Load a Webpage from your Computer to your Smartphone

Using the Google Charts API, you can create a JavaScript bookmarklet to give you a QR Code for the page you are currently viewing.  From there you can scan it from with your phone and load it without having to e-mail it or tap in the URL by hand.  Just create a bookmark on your bookmarks bar with the following as the URL:

javascript:void(window.open('http://chart.apis.google.com/chart?cht=qr&chs=300x300&chl='+encodeURIComponent(location.href),'Qr%20code','top=100,left=200,width=350,height=350,status=yes'));

Using "I'm Feeling Lucky" to Find Drupal Modules Fast

I often can't remember the name of a Drupal module I want to download and use.  For example, I can never remember if I need to go to drupal.org/projects/google-analytics or google_analytics or ganalytics or whatever.  I am also not satisfied with the search provided on drupal.org. So I figured out a way to put together a Search Engine in Google Chrome to do an "I'm Feeling Lucky" search on site:drupal.org/project.  Here is the search string I used:

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