Moving logical volume (LVM) over network

Sometimes you come to an issue of moving raw volume from one server to another. Now this can be pretty complicated thing. You could make a snapshot of LV or make an image file, which you would copy then to another server, but that takes ages. When creating image you also need almost double the

Network Layers – Schema

Usually on Hetzner I want to make sure I get most of our web servers. One of limitations is that each server has it’s own 100Mbit connection and if you want to use it, you should use iptables to link all your virtual servers to public ip, so I often end up writting some special

Heads up for a new beginning

After long time of consideration, I decided to start up a blog. Main reason for such decision is my lack of remembering things that I already discovered/solved, so I need a place to put my mind. I thought best idea is to share my thoughts with other sysadmins around the world, maybe someone else finds