I checked this again today for a customer case (may be King might have logged). I found some method , but  as this is virtual appliance, this may be by design to avoid any modifications after deployment. Lot easier to re-deploy new one with required config and backup/restore the DB.  Edited again for Solution (Also documented in KB 492564 with additional instruction for hostname change as well) :  This is because of vApp ovf properties (which is populated from the initial deployment). During OS boot, a vmware process reads this and overwrites the dns/hostname back to original default.  So to have this changed:  1) Shutdown the VSI (if not shutdown, we can view only, not able to edit) 2) Go to vSphere GUI and edit settings for the "VSI VM" 3) Go to Options -> vApp Options -> Properties 4) Modify the DNS as required 5) Power on the VM which will have this settings automatically applied.  Read only copy of this will be dynamically saved in /opt/vmware/etc/vami/ovfEnv.xml on the VSI as well.  Screenshot with VM powered on:  [IMAGE]
Hi  I am referring this document, VSI for VMware vSphere Web Client <[URL]  Could you tell me how to change then host name of the Solutions Integration Service virtual appliance?  Even though I change it , it automatically returns to localhost.localdom after rebooting the system.  Thank you,
VSI for Web client change hostname