I am working on Ubuntu OS.
Initially my pc configuration was Intel core 2 duo 3.0GH with 320 GB HDD. After some times, my friend changed the motherboard with lower version of configuration without changing the HDD.
Still the Ubuntu OS is working fine. I want to know that from where I would come to know the previous MAC (the machines physical address)? Does the system keep any log file in Hard disk ? If yes, then how to know?