Our network card has at least two addresses or identificators, the IP address we all know which can be dynamic and the physical address, the mac address which is unique for each device, it is the hardware address. Changing our mac address may be useful to avoid leaving logs with our real address on another computer or router. Changing the mac address may be useful to clone other mac addresses forcing them to get disconnected from a network and connecting again, useful to sniff the password when reinserted.

1. Mac Address Linux Ubuntu
2. Mac Address Changer For Linux
3. Mac Address For Kali Linux
4. Mac Address Command For Linux

Jul 20, 2018 Method 1: Find MAC Address Numbers with ip link. At the prompt, simply type ip link and push enter. You’ll be given a list of MAC address figures and you simply need to look for the name that GNU/Linux gives to your network adapter. For instance, you might see wls1:, which probably indicates a Wi-Fi connection that you’re working with.

Your network card has a MAC address. So if you have a wireless card and an Ethernet card, you'll have two MAC addresses. On Linux, either of these commands will show you the MACs of all network cards in your machine: ifconfig grep ether ip link. May 20, 2020 So, we have shared the brief details about mac address and now, we are going to share how to find mac address in Linux and you will also learn to find Bluetooth mac address. How to Find Mac Address On Linux:-Method 1:-This method will help you find mac address Linux without ifconfig command or terminal. How to find/display your MAC Address: Unix/Linux Vendor/Ethernet MAC Address Lookup and Search- How to find/display your MAC Address- Unix/Linux. Linux Solaris/SunOS FreeBSD/NetBSD OpenBSD Caldera/SCO UnixWare/OpenUNIX HP-UX (HP UNIX) IRIX (SGI UNIX) NeXTStep (NeXT UNIX) AIX (IBM UNIX) Tru64 UNIX (Digital UNIX).

In this brief tutorial you’ll learn how to check your mac address and how to edit it randomly or for a specific replacement mac address.

For this tutorial I will work on the network card enp2s0, replace this network card for yours (e.g eth0, wlan0, etc.)

To check your mac address just execute:

We can see on the enp2s0 network card the mac address is d0:17:c2:12:3c:cd while the wlp3s0 wifi card mac address is a2:58:a6:6a:29:04. Mac addresses 12 digits, 6 fields of 2 characters and letters separated by “:” like XX:XX:XX:XX:XX:XX.

The first 6 characters and numbers belong to the device manufacturer, in my case d0:17:c2 belongs to ASUS. The last 12 digits are the ID number for the hardware and it is unique.

First of all, to edit our network card mac address we need to disable our network card, the mac can not be changed while the card is being used. To disable our network card run:

Then, to edit our mac address type:

Then enable the network card back by typing:

If you need to edit our mac frequently maybe is convenient to use a program called macchanger, to install it on Debian or Ubuntu systems run:

During the installation you’ll be asked if macchanger should start when a networking device is enabled, here you can decide whatever you want, changing your mac address by default shouldn’t create problems unless you have your router configured to accept specific mac addresses.

Select any of the options and press enter to finish.

After macchanger is installed we can also check our mac address by typing

As you can see it matches with the mac address exposed using ifconfig.

Here Macchanger shows the current mac, the real hardware’s mac (Permanent MAC) and the new one if you assign it.To change your mac address fast for a random address simply run:

Make sure you run macchanger as root and that the network device is down. If you get an error when running this command then run:

To disable your network card, after it type “ifconfig” again and you’ll see your network card wont show up.

Then run macchanger -r again.

If we want to assign our card a specific address we can execute:

For example

Mac Address Linux Ubuntu

If we set our card up and run an ifconfig we’ll see our new mac address.

After editing our mac address we need to enable the network card back, for this run::

Now we can see our system also displays the new mac address 32:ce:cb:3c:63:cd.

Mac Address Changer For Linux

Mac Address For Kali Linux

Firewalls and IDS can contain policies whitelisting and banning specific mac addresses. Manipulating our network cards’ physical address is a great step to avoid leaving traces in logs and increase your privacy by masking your device or to bypass security obstacles when pentesting a network, the most common use as said at the starting is when we want to crack a wifi access dissociating a connected device with the aircrack suite by cloning it’s mac address.

Mac Address Command For Linux

I hope you found this tutorial on macchanger useful, keep following LinuxHint for more tips and updates on Linux.