A better way to work with RabbitMQ and NodeJS

Summary

In many scenarios as we move towards a more decoupled app architecture using micro-services, most tend to work over some form of messaging bus. 
This case is no other, here we shall take a look at how to get NodeJs to…

Increasing limits for socket descriptors on Ubuntu for RabbitMQ

We recently ran into some issue regarding the number of open connections on one of our RabbitMQ servers, the number of socket connections was totally exhausted, and this prevented new clients from connecting to the…

Web browsing over SSH tunnel

There are times when you would need to apply this technique be it if you are trying to escape some draconian rules of your network admin or for testing your site from a different location to the desire of browsing anonymously. 
 
In my case the need arose when I had to test some…

Connect to MySQL on Amazon RDS from local machine

For security reasons you should not have your database available to the internet just protected by some password, it should be available only from within your VPC.

Setting up Ghost Blog, MySQL and Nginx using Docker containers

What is docker and how it differs from Virtual machines you might ask yourself.

Docker is a container technology, it’s much more light weight than VMs and it allows us to package the software and…

Search a blob field in Oracle

SELECT * FROM my_schema.my_table t 
 WHERE dbms_lob.instr(t.my_blob,utl_raw.cast_to_raw(‘Searched string’))>0

Reference

[1] [http://blog.sbw.be/2006/09/13/oracle-search-inside-blob-content/](http://blog.sbw.be/2006/09/13/oracle-search-inside-blob-content/)

Configuring RabbitMQ Cluster on AWS

Most of the time your message broker will be a backbone of your application, having a single point of failure here will defeat the whole purpose of having built redundancy in other layers of your app.

Proxmox image installation on Hetzner servers

Put your server into rescue mode via the robot.

rescueimage

Select proxmox image under virtualization unsupported.