After rebooting our Ubuntu 13.10 VM it was no longer accessible via SSH any longer.
The JBoss server running on the machine was still accessible, so it is booted correctly.
We have tried restarting the VM via the management console, recreating the VM, keeping the disk image, but still no SSH available.
This is what nmap shows:
PORT STATE SERVICE22/tcp closed ssh
80/tcp open http
443/tcp open https
...
What could be wrong? And how can this be resolved?
Is it possible to access the VM on some other way than SSH, like a console?
Regards,
Marcel