I tried it, now my engine wont work using https://ovirt-engine.mydomain.com over the browsers just hangs in "loading" It does load from https://ovirt-engine.mydomain.com, but still I get "Connection to ovirt-imageio-proxy service has failed. Make sure the service is installed, configured, and ovirt-engine certificate is registered as a valid CA in the browser." and the cert is valid but points to ovirt-engine.mydomain.com. I did the following: engine-config --get ImageProxyAddress ImageProxyAddress: ovirt-engine.mydomain.com:54323 version: general engine-config -s ImageProxyAddress=ovirt-engine.mydomain.otherstuff.com:54323 systemctl restart ovirt-engine engine-config --get ImageProxyAddress ImageProxyAddress: ovirt-engine.mydomain.otherstuff.com:54323 version: general that did not seem to help so I put it back as it was. engine-config -s ImageProxyAddress=ovirt-engine.mydomain.com:54323 systemctl restart ovirt-engine engine-config --get ImageProxyAddress ImageProxyAddress: ovirt-engine.mydomain.com:54323 version: general