EC2 Instance and SWAP space

EC2 Instances on Amazon out of the box, does not contain any SWAP space. So if you exhaust memory, machine probably stuck. It’s very good practice, to give them at least slow SWAP memory...

Image Maps

Image Maps is quite ancient technology (1993!) to create “clickable” areas on images. Sometimes there is just no other way to handle some some images. Recently I found quite useful tool to create them.

Send and receive emails via API

It’s coming with experience. On the beginning you always trying to do everything by your self. No frameworks, no libraries – bare bone solutions written from the scratch. Later – you realising than your time is to expensive,...