GPO - Only allow computers/users access who are on Domain

I am trying to setup a policy to restrict:-

Computers - only allow those that have joined the domain access to network/internet

Users - restrict access to network/internet to those only on Domain.

Not sure if this is possible on GPO - or 3rd party software is required.
Darrin CrawfordAsked:
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Alex GreenProject Systems EngineerCommented:
That would be done on a network level, wouldn't it?
Alex GreenProject Systems EngineerCommented:
Ah Radius, it's a radius server I believe you need.
Abhilash PappiyilTechnical Lead - Network SupportCommented:
Hi,

GPOs are using to manage the AD joined computers and AD users. You will not be able to manage work group computers/users using GPOs. You may need to use proxy application or network devices for authorization to restrict network and internet access.

Thanks,
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KimputerCommented:
Most simple way to "fool" non-tech users, use your DHCP server to give out "normal" IP nr (with wrong DNS/gateway) to unknown MAC, have known PC's (domain joined) reserved by MAC with the correct DNS/gateway
Obviously, tech savvy ppl will compare IP info with "working" PC's to solve it.
But obviously, doesn't cost you a thing.
Alex GreenProject Systems EngineerCommented:
Right,

It can't be done with Active directory or group policy, what you're looking for is called NAC, Network access control. That talks to the radius server, matches up the machine GUID with the SSID of the computer account in AD and then it'll error lock the port if it doesn't match anything.

The other way is with MAC address databases, this has a massive admin overhead

https://www.cisco.com/c/en/us/products/security/nac-appliance-clean-access/index.html

There you go

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Alex GreenProject Systems EngineerCommented:
Another great link here

https://www.thesecurityblogger.com/why-migrate-from-cisco-nac-appliance-to-ise/

ISE is another way of doing it, I believe it superseded NAC
Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
Use network level/radius/3rd party programs to achieve this.
This can be done by AD group membership this way.
Alex GreenProject Systems EngineerCommented:
Well, you'll need an active directory reference point but it's still done on a network level.
Shaun VermaakTechnical SpecialistCommented:
Computers - only allow those that have joined the domain access to network/internet
You can block access to domain-joined resources with a GPO that sets an inbound Windows Firewall rule that only allows domain users and computers
fw.png
Users - restrict access to network/internet to those only on Domain.
Can you configure LDAP authentication on your Internet gateway?
Alex GreenProject Systems EngineerCommented:
That won't stop people accessing the network and running things against it.
Shaun VermaakTechnical SpecialistCommented:
Hence why I said
domain-joined resources
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