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Securing machines on network for remote access, but allowing internal Administration.

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Last Modified: 2014-11-12
We have VMware 5.5 and Windows server environment. Currently we have very little control of our WAN, as it's a ISP managed router and Firewall, so anything we do has to go through a ticketing process with 24-48 turn around time. We are leaving this provider and bringing most if not all in house. What I need to do is put some VMs and a couple physical PCs in a secure remote access environment, but yet still have access to administer and pull information off, when a user has completed a project. I'm currently configuring and securing RDP as much as possible to the physical machines but tends to be tedious. We have source code we are trying to secure as the developers work.

If anyone needs more network design information I can provide.

I'm wondering if we put something like a Sonicwall firewall in place, can I accomplish this with a DMZ or another configuration?   Ideas?
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Andrew Hancock (VMware vExpert PRO / EE Fellow)VMware and Virtualization Consultant
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Do the computers need to have access to a LAN at all.

e.g. you can host VMs on vSphere and just "turn off" networking, you will still be able to access the servers, via the console, using vSphere Clients and Web Client, using permissions to who has access.
HaroldNetwork Engineer

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Commented:
Andrew, yes that's my problem, some are development machines that we have internal people that will need access to the code, when completed.
Right now, I'm the only person that uses the vSphere client.
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HaroldNetwork Engineer

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Yes, there is an app. being developed as a SaaS,  so output from this will need to be accessed per needs of client. Also the development machine will need access to pull off source code as needed as well.

For the development machine I looked at locking down RDP, by disabling clipboard, printing etc..., but that defeats the purpose, as the developer needs local PC admin privileges to install and uninstall the program for testing during development.
HaroldNetwork Engineer

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Commented:
Andrew: is the vSphere client the only option? A DMZ is not an option?
Andrew Hancock (VMware vExpert PRO / EE Fellow)VMware and Virtualization Consultant
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HaroldNetwork Engineer

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Andrew: You have any information on how I could setup a DMZ within our current VMware infrastructure or do we need to buy an appliance?
Andrew Hancock (VMware vExpert PRO / EE Fellow)VMware and Virtualization Consultant
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You can certainly create a DMZ using VMware vSphere and networking and vSwitches, but there is no method to restrict access to it. e.g. block IP Addresses.

Maybe you could use Windows Firewall, and limit access to the VM, with Firewall Rules?

e.g. limit access via RDP, based on userid and firewall access.
HaroldNetwork Engineer

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Commented:
Andrew: have you worked with VMware vCloud Neworking and Security. Supposedly give you a true DMZ but in a virtual application.
Andrew Hancock (VMware vExpert PRO / EE Fellow)VMware and Virtualization Consultant
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Yes, we have, that's what we do.

If you contain, a server in a hypervisor, using vSphere networking, you cannot access it from the outside world.

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