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vYetti - Fun animated vSphere Login UI customization

05.15.2018 by William Lam // 10 Comments

For those that have been asking about how to customize the vSphere Client Login UI to include this fun little animated login screen as shown below, you can find the complete instructions on my github repo: https://github.com/lamw/vyetti-vsphere-client-customization

I wanted to take a moment and give thanks and credit to the original author (Darin S) who created the animated login, which he referred to as an "Animated SVG Avatar". I remember seeing this on my Twitter stream a few months back where it was shared on codepen.io, which is a platform for web developers to easily show off their demos. From what I could gather, the original demo had used MorphSVGPlugin.min.js which is a Javascript library that provided the animation. Apparently, the use of this library required a membership which prevented anyone from consuming this outside of codepen.io for demo purposes. While searching online, I accidentally stumbled across another similiar project by Balram Chavan who developed an alternative solution simply using Angular 5. With Balram's solution, I was able to make the necessary minor modifications (thanks to Jeeyun from the Clairty team on helping me with some of my Anuglar questions) to get this fully incorporated into the vSphere Client UI. I am sure there are other improvements that can be made to the customization such as a more "clarity" look/feel as the old the old "blue marge" theme background is pretty dated but I will leave that to someone more creative than me 🙂

Categories // Home Lab, Not Supported, vSphere Web Client Tags // HTML5, vsphere web client

Cool browser plugin for Dark Theme vSphere H5 Client 

05.12.2018 by William Lam // 5 Comments

While catching up on my news feed early this morning, I came across a really slick browser plugin developed by Jens L. that enables a "Dark" theme for the vSphere HTML5 Client (h5client). If you use either Chrome or Firefox, simply visit Bery's Github site here to get a link to the plugin.


Once the plugin has been enabled, simply login to your vSphere H5 Client, this works using vSphere 6.5 or latest 6.7 and you should see the UI automatically render using the Dark theme without any modifications to your vCenter Server. I know the Clarity team is working on an out-of-the-box Dark Theme for the H5 Client, but until then, this is an excellent workaround. I definitely appreciate this as someone who does work either super late at night or super early in the morning and although I use things like Flux to reduce the brightness of the screen, having a proper dark theme also helps. Thanks for the awesome project Bery!

Here is a screenshot of my vSphere 6.5 environment, which I was able to make use of new theme morning 🙂


If you have any feedback or comments, feel free to post an issue on Bery's github project.

Categories // Home Lab, vSphere Web Client Tags // vsphere web client

Native MAC Learning in vSphere 6.7 removes the need for Promiscuous mode for Nested ESXi

04.25.2018 by William Lam // 41 Comments

Over the years, several solutions have been developed here and here to help reduce the impact of promiscuous mode, which is a requirement for running Nested ESXi as a workload. Although these solutions worked extremely well, it however did require users to install additional software to enable this functionality. The most recent solution was a new Learnswitch VMkernel module (released as a VMware Fling) that enables MAC learning capabilities on ESXi.

Today, I am pleased to announce that with the release of vSphere 6.7, the MAC Learning functionality is now available as a native feature of the VMware Distributed Virtual Switch (VDS) and as some of you may have guessed from the title, promiscuous mode is also no longer a requirement for running Nested ESXi! I wanted to take a moment and thank Subin, Jobin, Sriram, Rajeev & Samuel from our Network and Security Business Unit (NSBU) at VMware who worked tirelessly to get this integrated and productized into ESXi. Not only will this benefit Nested ESXi workloads but also other solutions and use cases that have historically required the use of promiscuous mode. For customers who are still running ESXi 6.0 or 6.5, you should continue to use the Learnswitch Fling until you fully upgrade to vSphere 6.7.

To use the new MAC Learning functionality, you will of course need to upgrade to vSphere 6.7 (both vCenter and ESXi) but also upgrade to the latest VDS version which is 6.6. MAC Learning can be enabled on a per Distributed Virtual Portgroup bases and today, it is only available when using the vSphere API. For those that have used the VDS API to manage their VDS, you will simply use the existing ReconfigureDVPortgroup_Task() method and in 6.7, there now a new macManagementPolicy property which allows you to enable and define your MAC Learning settings. This new MAC Management Policy will also be the new preferred method for managing security policies going forward for a DV Portgroup and the previous security policy settings should no longer be used.

Disclaimer: Nested ESXi is still not officially supported by VMware. Please use at your own risk.  [Read more...]

Categories // ESXi, Home Lab, Nested Virtualization, Not Supported, vSphere 6.7 Tags // ESXi 6.7, mac learning, Nested ESXi, nested virtualization, promiscuous mode, vSphere 6.7

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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