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This really depends upon what you are using these virtual machines for. A web server obviously needs port 80 / 443 with no restrictions port 3389 can be restricted to your company's public ip address. &nbsp;if this web server communicates with a sql server instance located also on a vpc then you only need port 3389 to be available outside of AWS and port 1433 available within ... This question is just too open to provide a realistic answer .. The only real caveat is you have to allow at minimum 1 ip address to have port 3389 access
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This really depends upon what you are using these virtual machines for. A web server obviously needs port 80 / 443 with no restrictions port 3389 can be restricted to your company's public ip address.  if this web server communicates with a sql server instance located also on a vpc then you only need port 3389 to be available outside of AWS and port 1433 available within ... This question is just too open to provide a realistic answer .. The only real caveat is you have to allow at minimum 1 ip address to have port 3389 access

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Hi Experts,<br />
<br />
Launching about 10 windows instances on aws vpc. Configuring security group, network ACL etc., <br />
Please guide on what other secuirty can be configured at OS level to VPC level. Instances are in workgroup. Need to have restrictions to other users other than system admins. Please guide.
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Hi Experts,

Launching about 10 windows instances on aws vpc. Configuring security group, network ACL etc., 
Please guide on what other secuirty can be configured at OS level to VPC level. Instances are in workgroup. Need to have restrictions to other users other than system admins. Please guide.

What are the security settings that can be configured at different levels  like vpc level, security group, network level and operating system level

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.

Network Security

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.