Lately I’ve been hitting some strange issues in vSphere and vCloud installations. First it was things around SSO not being able to connect and then it was the VMRC console in vCloud that started giving weird “invalid ticket” errors that resulted in vCloud VMRC console being accesible .. or not!
Both issues seemed unrelated, but the solution was the same : incorrect time settings on one of the vSphere / vCloud components.
So from a troubleshooting perspective we can add another check to the default checklist:
1. Check firewall.
2. Check time (NTP) settings!!!
It maybe a simple solution, but something to keep in mind while troubleshooting. It can save you a lot of frustation.
Some resource with regards to time and vSphere / vCloud :
“If you can create it with physical devices, you can build it in your own vCloud”. That’s something I always tell my customers when advising on VMware vCloud. Same goes for VMware vCloud Network and Security, which in my opinion hasn’t shown its full potential to customer yet. Thankfully Shubha Bheemarao and Ranga Maddipudi have created an excellent whitepaper on implementing vCloud Network and Security for a DMZ zone. This paper demonstrates how securing a virtual DMZ environment using VMware vCloud Networking and
Summary of the paper:
This paper highlights how securing a virtual DMZ environment using vCloud Networking and Security can be a strategic enabler to your organization as it helps you to reduce your capital expenditure and increase agility, while building a cloud ready, secure and scalable environment for business applications. The paper also highlights the different design approaches to securing business critical applications and enables you to make the choice that is most suited to your organization in the cloud journey. Further, it gives prescriptive configuration guidance to help you get started with the deployment of your preferred approach.
For more information on vCloud Networking and Security follow @vCloudNetSec on Twitter.
VMware Certified Design Expert (VCDX) is the highest level of VMware certification, achieved by dedicated professionals who have demonstrated exceptional skill in VMware enterprise deployments. To earn a VCDX, professionals must create a complete enterprise VMware design and undergo an arduous defense at the hands of some of the world’s most sophisticated VMware experts.
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