Thanks Arik, however I would like to understand how it really works. As mentioned the only thing I did was to add a vps in order to hit the server Real fqdn: ovirt-engine.mydomain.com(192.168.0.45) Using fqdn: ovirt-engine.mydomain.otherstuff.com (192.168.10.109) Mapping: 192.168.10.109:80, 192.168.10.109:443, 192.168.0.45:80 The cert is already in my browser: This certificate is already installed as a certificate authority. engine.log: 2019-06-03 09:08:21,240-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferDiskImageCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-37) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] Renewing transfer ticket for Upload disk 'ovirt-node-ng-installer-4.3.0-2019020409.el7.iso' (disk id: '48312455-9003-44ee-a4bc-1e6533cc5408', image id: 'ab86967a-1516-45e2-bffd-fb7973a7efd5') 2019-06-03 09:08:21,241-04 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.ExtendImageTicketVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-37) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] START, ExtendImageTicketVDSCommand(HostName = host1.mydomain.com, ExtendImageTicketVDSCommandParameters:{hostId='20ac91be-dec8-4083-b09a-381e0185ddbe', ticketId='b6232936-cd9d-42dd-b794-a16ef6eaed44', timeout='300'}), log id: 77da6b6e 2019-06-03 09:08:21,247-04 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.ExtendImageTicketVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-37) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] FINISH, ExtendImageTicketVDSCommand, return: StatusOnlyReturn [status=Status [code=0, message=Done]], log id: 77da6b6e 2019-06-03 09:08:21,247-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferDiskImageCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-37) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] Transfer session with ticket id b6232936-cd9d-42dd-b794-a16ef6eaed44 extended, timeout 300 seconds 2019-06-03 09:08:21,253-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.ImageTransferUpdater] (EE-ManagedThreadFactory-engineScheduled-Thread-37) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] Updating image transfer 9cbe652c-1249-4eb1-8fe2-3a8387bd324a (image 48312455-9003-44ee-a4bc-1e6533cc5408) phase to Transferring (message: 'Pausing due to client error') 2019-06-03 09:08:21,729-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (default task-1357) [c46ac95d-a684-4860-b49b-6ed720a2df6e] Running command: TransferImageStatusCommand internal: false. Entities affected : ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_DISK with role type USER 2019-06-03 09:08:25,730-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (default task-1357) [2660ddba-f9b7-4843-b356-fb6e10485dfb] Running command: TransferImageStatusCommand internal: false. Entities affected : ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_DISK with role type USER 2019-06-03 09:08:29,735-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (default task-1357) [a644727a-0b56-4164-8ff2-2697e5de3132] Running command: TransferImageStatusCommand internal: false. Entities affected : ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_DISK with role type USER 2019-06-03 09:08:30,889-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (default task-1357) [5bb6e263-c6e8-4e2e-9923-420c20117c83] Running command: TransferImageStatusCommand internal: false. Entities affected : ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_DISK with role type USER 2019-06-03 09:08:30,890-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.ImageTransferUpdater] (default task-1357) [5bb6e263-c6e8-4e2e-9923-420c20117c83] Updating image transfer 9cbe652c-1249-4eb1-8fe2-3a8387bd324a (image 48312455-9003-44ee-a4bc-1e6533cc5408) phase to Paused by System (message: 'Sent 0MB') 2019-06-03 09:08:30,904-04 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-1357) [5bb6e263-c6e8-4e2e-9923-420c20117c83] EVENT_ID: UPLOAD_IMAGE_NETWORK_ERROR(1,062), Unable to upload image to disk 48312455-9003-44ee-a4bc-1e6533cc5408 due to a network error. Ensure that ovirt-imageio-proxy service is installed and configured and that ovirt-engine's CA certificate is registered as a trusted CA in the browser. The certificate can be fetched from https://ovirt-engine.mydomain.otherstuff.com/ovirt-engine/services/pki-resource?resource=ca-certificate&format=X509-PEM-CA 2019-06-03 09:08:31,290-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferDiskImageCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-47) [6586fac6-acfe-4f72-872d-9cc2b7b9f2d6] Transfer was paused by system. Upload disk 'ovirt-node-ng-installer-4.3.0-2019020409.el7.iso' (disk id: '48312455-9003-44ee-a4bc-1e6533cc5408', image id: 'ab86967a-1516-45e2-bffd-fb7973a7efd5') 2019-06-03 09:08:33,736-04 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (default task-1357) [2d427408-e140-4e46-b467-bfa13890e05b] Running command: TransferImageStatusCommand internal: false. Entities affected : ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_DISK with role type USER