Find out non domain computers

Dear Experts,

In my organisation domain is configured . It is configured in Windows Server 2012. Al most all the clients are connected to the domain. I want to find out which all computers are not connected . Can I find out.

Regards,

JCT
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jct_777Asked:
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jmcgOwnerCommented:
There are various network mapping tools you can use to try to discover all of the devices connected to your network, some may be built into your switch/router hardware.

Once you have such a list, you can compare that with your DHCP server's list of IP addresses and cross-check. Some of the devices on your network may not be computers capable of joining the domain and someone who is being sneaky can often do a pretty good job of hiding from common tools.

In a former job, we used Spiceworks to map the network and inventory what was connected. In other situations, I've used "TheDude" software and "nmap" to try to figure out what was out there.
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jct_777Author Commented:
Hi ,

According to you through active directory we can't find it out. Only through third party software or I need to take the help of the networking team.

Regards,

Jct
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Andrew DavisManagerCommented:
Get a copy of netscan free https://www.softperfect.com/products/networkscanner/ 
In "Options" under "Workstation" tab select LAN Group this will display the domain or workgroup that the device is on.

Cheers
Andrew
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jmcgOwnerCommented:
Well, if you're looking for computers not in AD, you need a source of information that is not AD. If your domain controller(s) provide DHCP service, you could look at the IP address leases for a start. But to more comprehensively find computers on the network, since a computer can be on the network without DHCP, the 3rd party sniffers will likely give you more results.
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jct_777Author Commented:
Hi Andrew,

Thanks a lot

Jct
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