Remote access to Active Directory outside of the network

Hi Gigital Point,
I have a such issue and will appreciate if you can advice me the best way to do it. One of my clients have their own local server in their office and active directory installed overthere. Now they need grant access to 4 users from other city/country access to their local server and they gonna work with their local files. What's the easiest method to do it

1. Setup one computer in office for that need, allocate 4gb ram for each user, create 4 users on that computer and they can work remotely
2. Get 4 static IP address (or even 1 Static IP) and grant access thru that IP address
3...

Sorry I'm not enough experienced, that's my wherever I described above can be a little damn. I interviewed few guys to do this job, and got those suggestions. What do you think what's the best method?

thanks in advance.

 

Setting up a dedicated computer in the office for remote access could be a straightforward solution, especially if you're looking for something manageable. Also, using a static IP for access might offer more flexibility, but it’s essential to consider security measures. Ultimately, it depends on your client's needs and the level of access and security they're comfortable with.