If you don’t have any specific settings and you just want to “copy” your linux working environment like running services and so on you can install a machine with identical packages installed by exporting the list of packages and importing it on another machine.
Backup installed package list on current machine
dpkg --get-selections > selections.txt
On new machine install packages like this:
dpkg --set-selections < selections.txt
To see what packages are installed on the system, fire up:
aptitude search '~i'