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Networking
Stretch VLANs across routers L2TPv3
Recently, I have been working a good bit with DR network connectivity and other DR DCI concerns. A typical scenario today has a virtual environment in one Site as production and another virtual environment in another site, Site B, as…
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home lab
Securing RDP access to Home Lab
One of the cool things about having a home lab is being able to reach it from anywhere. Of course, when thinking about how you are going to make your lab accessible from the Internet, we always have to think…
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Virtualization
Upgrade firmware Equallogic multiple member group
I put together just a few notes after going through a recent project of an upgrade firmware Equallogic multiple member group. Essentially the process is the same as upgrading a single member, except that you need to pay a bit…
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Software
Remote Desktop Connection Manager Replacement
I don’t typically write up a lot of posts about admin software unless I find something that I feel is truly worthy of letting others know about. As many of you do, I use a lot of different utilities day…
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home lab
Windows cannot be installed to this disk 4K drives
With the recent SuperMicro server build, I am utilizing Seagate ST8000NM0065 drives. High density 4K drives are starting to come of age, however, there are still a few tricks required to get OS’es installed to boot from 4K. Starting with Windows…
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home lab
Mount Virtual Media SuperMicro IPMI
In the previous post here, I walked through the SuperMicro IPMI management interface and a few of the options that are available to administrators there for management of their SuperMicro server. One of the more interesting options in the IPMI…
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home lab
Supermicro IPMI management walkthrough
If you are utilizing Supermicro in your lab environment, there is a great feature that comes with Supermicro boards that allows BMC IPMI management of the server. It is basically an out of band management of the server much like…
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Security
Add Cloudflare IPs Amazon EC2 Security Group
If you are utilizing Cloudflare as your DNS/CDN provider for your website and you are utilizing an Amazon EC2 instance as your host, let’s take a quick look at the topic – how to add cloudflare ips amazon EC2 security Group.…
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Networking
TCP Auto-tuning slow network performance
Starting with Windows Vista, there were improvements made to the network stack including a little known feature called TCP Window Auto-tuning. The auto-tuning feature allows newer versions of Windows to be able to adjust the RWIN value automatically on the…
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Networking
Design Considerations LACP LAG
Link Aggregation Groups are multiple connections between two switches that allow the switch to aggregate links/bandwidth between them. LAG’s are typically dumb in themselves without using Link Aggregation Control Protocol, LACP, on top. In fact, for instance, a (4) link…
