If we create logical volumes using LVM we have to define a fixed size for this volume and all the space for this volume will be allocated on disk at once. In a thin provisioned setup this is different. It will just allocate the space used and it will grow dynamically.

echo error >&2

It's quite easy to share files using netcat.

Serve a file on a listening port:

cat myfile.txt | nc -l -p 1337

Connect to this port and download file:

netcat SERVERIP 1337 > myfile.txt

My plan was to control some power outlets(16 ampere) using any browser(for example with a mobile phone). I wanted to use electronics only and tried to avoid relays.

Let's catpure for example only tcp-packets with syn or ack-flag set:

tcpdump "tcp[tcpflags] & (tcp-syn|tcp-ack) != 0"

>

Guacamole is a clientless remote desktop gateway using HTML5. It supports the following backends: VNC, RDP, SSH and Telnet. It really looks like a promising project to me

➜  ~  ruby -e 'puts %w[t o m].permutation.map &:join' 
tom
tmo
otm
omt
mto
mot