Guest Console Access
enabled in the guest’s configuration file, vm.cfg. Some VNC parameters (for example, the listening address and password) can be configured in one, either, or both of the following locations:
■The Oracle VM Server configuration file:
■The guest configuration file in either of the following locations:
/etc/xen/name
/OVS/running_pool/name/vm.cfg
Hardware virtualized guests use the vnc=1 parameter in the guest configuration file, for example
vnc=1
vnclisten ’0.0.0.0’
Paravirtualized guests use the VNC virtual frame buffer in the guest configuration file, for example
vfb = ['type=vnc,vncunused=1,vnclisten=0.0.0.0,vncpasswd=mypassword']
VNC settings defined in the guest configuration file override the settings in the Oracle VM Server configuration file. For example, if the following is specified in a hardware virtualized guest configuration file:
vnc=1
vnclisten '0.0.0.0' vncpassword 'mypassword'
The values set in the guest configuration file are used for VNC access, rather than any corresponding values set in the Oracle VM Server configuration.
Note: Setting vnclisten to 0.0.0.0 sets VNC to allow access to any computer. This may compromise security on the host computer.
If the following is specified in a hardware virtualized guest configuration file:
vnc=1
VNC is enabled in the guest, and the vnclisten parameter is used from the Oracle VM Server configuration file. If vnclisten is not specified in the Oracle VM Server configuration file, a default value of 127.0.0.1 is used. If the following is specified in the hardware virtualized guest configuration file:
vnc=0
VNC access to the guest is disabled.
Setting the default configuration options for VNC access in the Oracle VM Server configuration file enables you to configure access for all guests, and then individually override VNC access by setting the VNC parameters in the guest configuration file.
The following example is a VNC configuration entry in a paravirtualized guest configuration file:
vfb = ['type=vnc,vncunused=1,vnclisten=0.0.0.0,vncpasswd=mypassword']
Troubleshooting
