Remote Access to libvirtd not Working: Troubleshooting virt-manager and SSH

Remote Access to libvirtd with virt-manager over SSH: Troubleshooting

In this article, we will cover the steps to troubleshoot issues when trying to access libvirtd remotely using virt-manager over SSH. We will assume that you have already set up SSH access to the remote server and that you are able to log in using SSH.

Error Message

When attempting to connect to the remote libvirtd service using virt-manager over SSH, you may encounter the following error message:

Troubleshooting Steps

To troubleshoot this issue, follow these steps:

1. Check that the libvirtd service is running on the remote server:

   systemctl status libvirtd

2. If the service is not running, start it:

   systemctl start libvirtd

3. Check that the SSH service is running on the remote server:

   systemctl status sshd

4. If the SSH service is not running, start it:

   systemctl start sshd

5. Check that the firewall on the remote server is configured to allow SSH and libvirtd connections:

   firewall-cmd --permanent --add-service=ssh firewall-cmd --permanent --add-service=libvirtd firewall-cmd --reload

6. Check that the user you are using to connect to the remote server has permissions to access libvirtd:

   usermod -a -G libvirt

7. Try connecting again using virt-manager over SSH.

Additional Troubleshooting

If the above steps do not resolve the issue, you can try the following:

1. Check the SSH logs for any errors:

   journalctl -u sshd

2. Check the libvirtd logs for any errors:

   journalctl -u libvirtd

3. Check that the remote server is able to resolve the hostname of the local machine:

   /etc/hosts

4. Check that the remote server has the necessary permissions to access the libvirtd service:

   setsebool -P virt_use_sshd_password 1

• Check that the libvirtd and SSH services are running on the remote server.

• Check that the firewall on the remote server is configured to allow SSH and libvirtd connections.

• Check that the user you are using to connect to the remote server has permissions to access libvirtd.

• Check the SSH and libvirtd logs for any errors.

• Check that the remote server is able to resolve the hostname of the local machine.

• Check that the remote server has the necessary permissions to access the libvirtd service.

References

• Libvirt and SSH

• Libvirt Troubleshooting

• Managing Guests Remotely Using virt-manager over SSH