IRB Console with history and logging

I spend most time with IRB or Rails/console. These are good settings on which I have settled with over the time. These will allow you to have basic logging and IRB history. Just put these in the ~/.irbrc file (If file doesn’t exist then create one).

Prevent Googlebot following links in Gmail

How to prevent googlebot following links in gmail messages? Well bad news is “Googlebot is following links sent to subscribers of a mailing list by email and it is causing those subscribers to receive an unsubscribe meesage or a added download from the list or server”.

Bigger Bad news is that age old trick will NOT work here, we can not solve this simply by adding

<a href="signin.php" rel="nofollow">sign in</a>

Best way in my opinion is to reject download count based on the user agent. Which is Googlebot in case of Google Crawler.

find long answer here.