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Virtual Machine

A Virtual Machine has no network connectivity. How do I troubleshoot this?A Virtual Machine creation fails. How do I troubleshoot this?A live migration takes too long. How do I resolve this?A Virtual Machine pauses or restarts after a live migration. How do I resolve this?A Virtual Machine frequently enters a paused state. How do I resolve this?A Virtual Machine cannot be accessed via SSH. How do I resolve this?How do I change the Virtual Machine root password in single-user mode?SSH login fails with the error "This private key will be ignored." How do I resolve this?The Virtual Machine console displays the error "Guest has not initialized the display (yet)." How do I resolve this?The Linux VNC console displays uppercase/lowercase characters that are reversed from keyboard input. How do I resolve this?What is the relationship between Virtual Machine system time and host system time?How do I check whether a Virtual Machine supports hardware virtualization?Will the DHCP service on the virtualization platform conflict with the existing DHCP service in the data center?What is the default hostname when creating a virtual machine with a Distributed Port Group and no hostname is specified?Why does setting the Distributed Port Group hostname using the zstack-cli command have no effect?How do I change the Console Proxy address?How do I access a virtual machine console on a private IP address using the public IP address of the Management Node?How do I resolve a qemu version mismatch?Can the MAC address assigned to a virtual machine by the virtualization platform be changed manually?Does the IP address of a virtual machine change after detaching and reattaching a Distributed Port Group?How do I add multiple network adapters to a virtual machine?How do I set the boot order of a virtual machine?How do I assign a specific IP address when creating a virtual machine?What do I do if changing the password of a Windows virtual machine returns an error?What do I do if an SSH key is accidentally deleted or the virtual machine key is changed?Why does shutting down a virtual machine take a long time?How do I resolve an issue where an outdated qemu-guest-agent version on an Ubuntu virtual machine prevents online password changes?How do I handle a failure to create a virtual machine on Ceph Enterprise Edition Data Storage?Why is the network unavailable on a Windows virtual machine but working normally on a Linux virtual machine, when both are created using a Distributed Port Group?How do I resolve a live migration failure for a virtual machine using shared storage with CPU mode set to host-passthrough, within the same cluster?After installing an operating system on a UEFI-booted virtual machine and restarting, the system automatically enters the UEFI shell. How do I resolve this?How do I resolve a resolution adjustment issue on a UEFI-booted Windows Server 2016 virtual machine?How do I cancel a live migration task for a virtual machine?How do I resolve a "Too many open files" error that prevents opening the virtual machine console?How do I troubleshoot a virtual machine on Local Storage that keeps restarting but fails to start?How do I troubleshoot missing monitoring data on the virtualization platform?How do I resolve a network connectivity issue on a Red Hat 5.7 virtual machine?What do I do if a Windows virtual machine cannot adjust the screen resolution?What do I do when installing VMTools on Windows returns a "There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected Contact your support personnel or package vendor" prompt?How do I resolve a ping failure between Windows virtual machines?How do I resolve an abnormal screen lock on a virtual machine?How do I resolve an issue where a Windows virtual machine cannot obtain an IP address?How do I use a sound card in a Windows virtual machine?The virtual machine status is unknown and cannot be operated. How do I resolve this?The virtual machine fails to change its host. How do I resolve this?Deleting a virtual machine snapshot times out. How do I resolve this?The virtual machine fails to load a USB device. How do I resolve this?How do I uninstall Linux VMTools?Creating a virtual machine that uses distributed storage fails. How do I resolve this?The virtual machine cannot be accessed via SSH. How do I resolve this?The virtual machine cannot be accessed remotely. How do I resolve this?Virtual machine cloning takes too long. What should I do?The virtual machine cannot be accessed via SSH. What should I do?Opening the virtual machine console fails. What should I do?The mouse is not working in a Windows virtual machine. What should I do?The Linux virtual machine internal monitoring port conflicts with a business port. What should I do?Creating a virtual machine image is slow. What should I do?The virtual machine fails to start after the host restarts. What should I do?The virtual machine cannot boot into the system after a restart. What should I do?The virtualization platform cannot recognize a USB device. What should I do?The virtual machine fails to start. What should I do?Creating a virtual machine fails. What should I do?The virtual machine has no network connectivity. What should I do?The virtual machine cannot obtain an IP address via DHCP. How do I resolve this?SSH login to the virtual machine fails. How do I resolve this?The virtual machine cannot obtain an IPv6 address. How do I troubleshoot this?The virtual machine pauses automatically. How do I resolve this?Switching to the /bin/bash directory in rescue mode on a CentOS virtual machine returns an error. What should I do?The DNS settings on a CentOS virtual machine revert to defaults after a restart. What should I do?The virtual machine displays the error "The root file system is already mounted read-write." after startup. What should I do?The DNS address of a Windows virtual machine using a Distributed Port Group is frequently lost automatically. How do I resolve this?The network is normal but SSH connection to the virtual machine is slow. How do I resolve this?CentOS virtual machine cannot boot and displays a black screen for an extended period Windows 2016 virtual machine can ping an internet address but cannot access it through a browser

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Resource Inventory Virtual Machine

The DNS address of a Windows virtual machine using a Distributed Port Group is frequently lost automatically. How do I resolve this?

Symptom

The DNS address of a Windows virtual machine using a Distributed Port Group is frequently lost automatically.

Cause

The Windows virtual machine has a DNS cache issue.

Solution

In the virtual machine console, press the Windows key and R simultaneously, type CMD in the dialog box that appears, and press Enter to open the Command Prompt.
In the Command Prompt, run ipconfig /flushdns to flush the virtual machine DNS cache.
In the Command Prompt, run netsh winsock reset to reset the virtual machine Winsock catalog.
Restart the virtual machine for the changes to take effect.

The virtual machine displays the error "The root file system is already mounted read-write." after startup. What should I do?

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The network is normal but SSH connection to the virtual machine is slow. How do I resolve this?

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