How to change Mac Address on Linux , Windows and OSX system

MAC address is a unique identifier assigned to network interfaces for communications on the physical network segment.
MAC addresses are used for numerous network technologies and most IEEE 802 network technologies, including Ethernet.
The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits.

In linux system we can use terminal:
For find our mac address we can digit : ifconfig

Firtstable we must down the interface :
ifconfig eth0 down
After we change our mac address:
ifconfig eth0 hw ether new mac address
ex: ifconfig eth0 hw ether AA:BB:CC:DD:EE:FF
After we must up the interface:
ifconfig eth0 up

Now your mac address is changed !
If you use wifi interface your interface is wlan0 not eth0.
When you restart your pc, mac address return the first !
Alternatively you can try macchanger : sudo apt-get install macchanger macchanger-gtk
Start macchanger : macchanger-gtk


On windows system we need program, Mac Makeup. You can download this program here.
Now you can select interface that you want change mac address.
Now choice Generate random and after click on Change. Now your mac address is changed !


On OSX system we need program like windows , MacDaddy.
You can download MacDaddy here.
MacDaddy can choice mac address of productor or random.
When you change your mac address you must only restart your pc , and your mac address id changed !

If you have a problem or you need some explanations just write under this post!