Blog & Tutorials

Virtualization blog featuring my home virtualization lab, tutorials, network topology and configuration guides in the virtualized environments.

How to setup Multi Site SQL 2012 AlwaysOn Cluster with Two FCIs Across Datacenters?

In this how-to tutorial, we will look at implementing multi-node, multi-site SQL 2012 AlwaysOn Windows Server Failover Cluster (WSFC) with two Failover Cluster Instance...

VMware VCP410 Exam Promotion code

Its about time VMware released a promo code for their VCP410 exam. If you are studying for VCP exam then this could save you...

Firewall, NAT and DNS, reverse DNS entries do not match Error

If you host your own email behind a NAT device or firewall, you've probably seen this issue come up at least once in your...

Adaptec RAID Card Array Status using SSH

I recently moved to new dedicated server and turns out that the server is equipped with Adapted RAID Card. The server has linux CentOS...

Configure Dadamail with correct “return path” to catch Bounces

Since I have my websites on dedicated server box, I also use script called dadamail (dadamailproject.com) to send newsletters to website members. Recently, I...

How to use VMware PowerCLI to get All VM Mac Addresses?

Just a quick how-to on using VMware PowerCLI to get All Virtual Machine (VM) MAC addresses, host VM is registered to and VM name. I...

Turn off Network redundancy message when configuring VMware HA/DRS

In my lab, when configuring VMware vSphere 5 HA/DRS in vCenter Server, you see the message under the "summary" tab in vSphere Client: Configuration issues:...

Debug and Optimize vBulletin with Config Constants

If you use vBulletin forum software, you probably know what a wonderful piece of code it is and type of features, enhancements it offers...

Blog & Tutorials