I’ve been migrating VMWare workloads lately, and that means having multiple vCenter UIs open at the same time. So of course I keep forgetting which vCenter UI I’m looking at, sometimes even performing the wrong action on the wrong instance.

So I sshed into my vCenter 6.5 appliance and made this edit:

File: /usr/lib/vmware-vsphere-client/server/work/deployer/s/global/27/0/container-app-war-6.1.0.war/ui.jsp

187c187
<             top: 0;
---
>             top: 10px;
203a204
> <div style="background-color:red;height:10px;"></div>

This adds a small red bar right above the Flash client, which has been helpful reminding me whether I’m on prem or in the cloud.

vCenter UI