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Networking
Cisco Native VLAN mismatch
After installing a test Meraki MS220-8 switch in my lab environment at home, I noticed when I remoted into my core switch for my lab, a Cisco SG300-20, it was displaying messages about a Native VLAN mismatch. I wanted to…
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Security
Arpwatch SMTP configuration
One of the more obscure sources of information when configuring arpwatch is arpwatch SMTP configuration. There are so many flavors of linux and SMTP servers, how can you easily setup a vanilla SMTP mechanism to shoot out your arpwatch notifications?…
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Security
Arpwatch Home Network Monitor
Let’s face it, these days, we all need to pay more attention to what is going on with our home networks. I have the mindset and maybe this is overkill a bit, but we should manage and administer our home…
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vSphere 6
ESXi 6 Equallogic reclaim free space
If you are thin provisioning VMs in your environment with an Equallogic SAN attached to your cluster, you may find that you start receiving warning from SAN HQ or your group manager alerting which states [ID: 4.2] Caution: % In-use…
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vSphere 6
How to tweak performance ESXi 6.0
We might not think about tweaking of the ESXi hosts themselves for performance. While there are other major areas of performance consideration in a vSphere cluster such as your storage IOPs, memory, and CPU resources, there are a few little…
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Powershell
AppAssure powershell commandlets for administrators
If you administer an AppAssure environment, there is great power in using Powershell to do a lot of the heavy lifting. There are just some things about GUIs we all love to hate and the AppAssure GUI is no exception…
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vSphere 6
Create Linked Clone using PowerCLI ESXi 6
Guys, just wanted to write up a quick post on how to spin up a linked clone in ESXi 6.0 using only PowerCLI, this may come in handy if you are testing in a lab environment or have the need…
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Virtualization
Deploy Dell Virtual Storage Manager 4.5.2 in vCenter
For those of you who don’t know or haven’t seen the Dell Virtual Storage Manager (VSM) appliance, it is a virtual appliance provided by Dell which extends the functionality of vCenter to have better control and functionality over their EqualLogic environment. Including…
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Virtualization
VMware create and restore group snapshots multiple VMs at once
If you have a lab environment or other “application stack” specific multiple VMs, there can arise the need to create and restore snapshots in unison or in a “group” fashion. This is easily accomplished with PowerCLI. Also, in playing around…
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Networking
Force the primary outgoing IP address Windows Server 2012 R2
In working recently with a web server that also has a basic SMTP engine loaded as well, I ran into an issue with the mail server outbound mail queue stacking up after making a reverse DNS change with the ISP.…
