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Resyncing the ZStack Cloud management database on dual-MN HA after a power outageStep-by-step recipe to recover a ZStack Cloud dual-MN HA deployment where a power outage left the management node services abnormal and the database out of sync; uses zsha2 to demote the bad node and re-sync the database to the VIP node.Updated: 2026-07-20Replacing the ZStack Cloud platform HTTPS certificate on dual-MN HAProcedure to replace the platform HTTPS certificate on a ZStack Cloud dual-MN HA deployment: convert the customer's PFX/P12 to PEM, find the keytool alias, run zstack-ctl config_ui, update consoleProxyCertFile in zstack.properties, restart MN services, and verify console access.Updated: 2026-07-20Changing the time source (NTP) on a ZStack Cloud dual-MN HA deploymentProcedure to change the time source on a ZStack Cloud dual-MN HA deployment: update chrony.conf on the primary management node, update chrony.serverIp in zstack.properties on both MNs, restart services, reconnect physical hosts, and verify with chronyc sources -v.Updated: 2026-07-20VM Live Migration Fails with rsync "connection unexpectedly closed" After the Host root Password Is RotatedRestore VM live migration after a host's root password was changed outside the platform, by updating the new password in the ZStack host detail page (and, for Ceph deployments, in the primary storage and image server detail pages).Updated: 2026-07-20Enabling VPC network DHCP service and changing the DHCP service IP via zstack-cliHow to enable the DHCP service on a VPC network when VMs fail to obtain an IP address, and how to change the DHCP service IP through zstack-cli, including updates to the UsedIpVO database table.Updated: 2026-07-20VPC vRouter creation times out because the VPC management network cannot reach the management node on TCP port 8080Diagnose and fix a VPC vRouter creation timeout caused by a firewall policy that blocks port 8080 between the VPC management network and the platform management network.Updated: 2026-07-20