Amazon ELB and Client side certificates

The problem Amazon’s ELB only allows you to setup loadbalancer with a normal SSL certificate and does not support 2 way SSL authentication. To overcome this issue, there are certain “hacks” you can make use of. At the time of writting this post, Amazon AWS was in the process of implementing this feature, but it

Creating bootable Windows USB from Linux

Intro Many of you probably have Linux for your desktop OS and therefore don’t have access to Microsoft’s DVD/USB tool that creates bootable USB from iso. I’ve had few issues in the past when I tried to make bootable USB from my windows.iso file. Pretty lame, but still… There used to be programs like winusb

EnhancedIO block cache – howto and benchmark

What is EnhancedIO? EnhancedIO is fork of Facebook’s flashcache. It uses SSDs as cache devices for traditional rotating hard disk drives. I had one spare SSD @ my office so why not give it a try. I chose EnhancedIO over other block caching drivers becouse it’s one of rare drivers that doesn’t need any modification

Celebrating one year!

First year It’s been one year since I started blogging and I think it’s time for a little update. As you may have noticed I prepared new web design of the website for you. I did keep the old layout, since I think it’s still most efficient and fast for searching.   Let’s have a

Tips for optimizing disk performance on Linux

Forespeech Lately I’ve been dealing mostly with storage and disk performance. We have several MySQL / MongoDB databases, which can be very I/O consuming. Usually people benchmark storage when they setup server, but running a real service on it, will actually show how really optimized the server is. Tips for optimizing your disk storage I’ll