Connect to XenServer VM screen via VNC

For connect to virtual machine screen via VNC you need:

1. Retrieve VM domain number (execute in XenServer console):

   xe vm-list params=dom-id name-label=[vm name] | grep dom-id

2. Retrieve VNC port for this domain (execute in XenServer console):

   xenstore-read /local/domain/[domain]/console/vnc-port

3. Make remote connection ([port] – last two digits from previous output), execute in remote console:

   vncviewer -via root@[xenserver] localhost:[port]

All together from remote console xen_vm_screen.sh:

#!/bin/bash
XEN_HOST=$1
VM=$2
XEN_USER=root
DOMAIN=`ssh $XEN_USER@$XEN_HOST "xe vm-list params=dom-id name-label=$VM | awk -F ':' '{gsub(/[ \t]+/, \"\", \\\$2); print \\\$2}'"`
VM_PORT=`ssh $XEN_USER@$XEN_HOST "xenstore-read /local/domain/$DOMAIN/console/vnc-port"`
vncviewer -via $XEN_USER@$XEN_HOST localhost:${VM_PORT:2:2}

Execute it as:

bash ./xen_vm_screen.sh vm_host_name vm_name