Author: Gautam Rege

Houston, you there ?? We’ve had a problem here.

One of our EC2 instance which has Redis server on it, got hacked out of nowhere.
Just before we knew it is hacked, we were screwing up with Redis configuration and thinking what could go wrong with it.

Houston – Roger that, give us more details.

Well, we’ve recently shifted our Redis server to new EC2 instance. The reason we had to do that was because, our Sidekiq processing got much bigger and we couldn’t afford it alongside the Nginx + Passenger. So we took a call to separate it out.

But while configuring Redis, we think we made some mistake :(.

Houston – What is that ?

Basically, we wanted the Redis to listen to all of our Passenger instances . Though by default, it listens on localhost because it’s  bind directive is set to  127.0.0.1 , it’s possible to listen on multiple interfaces by providing multiple IP…

This is the blog post about few things in Rails command line that I hardly ever use.

rake notes

Left a comment like #FIXME or #TODO on a method, but never actually end up changing anything or fixing anything about the method. If this sounds familiar, then rake notes helps you avoid just that. It will find all the files with comments beginning with OPTIMIZE, FIXME, OPTIMIZE.

Also, we can add search for specific annotation, for ex: searching for just FIXME comments would be as simple as firing rake notes:fixme.

Also it lets us search for any custom annotation that we might be using in our code, rake notes:custom ANNOTATION=ADDTESTCASE

Read more about rake notes on the guides.

rails console –sandbox

If you wish to test some code, but you also want the data to be reverted back to original after you have tested the…