Configuring Hyper-V Virtual Networks

The Virtual Network Manager in Hyper-V allows you to create several types of virtual networks inside your virtual environment. This allows you to create isolated networks inside the same server. Click Virtual Network Manager in the Actions pane to access the Virtual Network Manager.

In the left hand pane is a listing of all the virtual networks currently programed in on this Hyper-V server. Be default, New virtual network is selected. Be clicking on any of the other already configured networks will allow us to make changes to each profile.

Types of virtual networks.

In the Create virtual network area, we see three types of networks that we can create.

External:

An External network creates a virtual network that you bind to a physical network adapter. This allows the VMs in that virtual network to access your physical network. They will be able to talk with each other, get DHCP addresses, and access the internet if those services are provided.

Provide a Name for this virtual network.

It is a good idea to add some notes as to what this virtual network is going to be used for.

From the drop down list, select the physical NIC that this virtual network will bind to. You can only bind a virtual network to 1 NIC. Also, uncheck the Allow management operating system to share this network adapter. In practice, you want to have a separate NIC for the host and each virtual network hosted on that server.

Internal Only

In this configuration, the VMs will be able to talk with each other, and the host operating system. You will have to provide for IP addressing and name resolution services in this scenario.

Private

With this setting the physical host cannot talk to the VMs and vice versa. It completely isolates network communications to only the VMs inside the virtual network.

Comments

Sticky Key problem between Windows Server 2012 and LogMeIn

This week I instructed my first class using Windows Server 2012 accessed via LogMeIn and discovered a Sticky Key problem every time you press the Shift key. Here is my solution to resolve this. First off, in the Preferences of LogMeIn for the connection to the Windows Server, click General . Change the Keyboard and mouse priority to Host side user and click Apply at the bottom. On the Windows 2012 server, open the Control Panel – Ease of Access – Change how your keyboard works . Uncheck Turn on Sticky Keys . Click Set up Sticky Keys . Uncheck Turn on Sticky Keys when SHIFT is pressed five times . Click OK twice. If you are using Windows Server 2012 as a Hyper-V host, you will need to redo the Easy of Use settings on each guest operating system in order to avoid the Sticky Key Problem. Updated Information: March 20, 2013 If you continue to have problems, Uncheck Turn on Filter Keys .

Where did a User’s Account Get Locked Out?

Updated: May 15, 2015 When this article was originally published, two extra carriage returns were add causing the code to malfunction. The code below is correct. My client for this week’s PowerShell class had a really interesting question. They needed to know where an account is being locked out at. OK, interesting. Apparently users hop around clients and forget to log off, leading to eventual lock out of their accounts. The accounts can be unlocked, but are then relocked after Active Directory replication. This problem is solved in two parts. The first one is to modify the event auditing on the network. The second part is resolved with PowerShell. The first part involves creating a group policy that will encompass your Domain Controllers. In this GPO, make these changes. Expand Computer Configuration \ Policies \ Windows Settings \ Security Settings \ Advanced Audit Policy Configuration \ Audit Policies \ Account Management Double click User Account Management C...

Backup and Restore AD LDS with DSDBUTIL.exe

Active Directory Lightweight Directory Services allow you to create a directory service that allows applications to have access to user accounts, groups, and authentication similar to Active Directory Domain Services. The big advantage here is that the schema of the directory service will not be bound by the rules of an Active Directory database. Exchange 2007/2010, for example, use an instance of AD LDS on the Edge Transport Server to provide for user authentication from the internet. Because your Active Directory database is not exposed to the internet, this is more secure. Applications will handle most of the dirty work should they require AD LDS. You may want to make sure the database is being backed up and also have a restore plan in place. Should the database become corrupt, the application that uses that database will fail. This document will walk you through backing up and restoring an instance of AD LDS using the dsdbutil.exe command. Fi...

Jason Yoder, MCT

Search This Blog