Is the Ubuntu VM running before you try to open it? If not, look for that setting in the VM settings ... "Start on Boot" or something like that.
I typically don't use VMM, virt-manager, to get a GUI into a VM.
On the same LAN, I use X11 forwarding with ssh to display the application from on my local workstation, but have it running on either a VM or other remote systems on the LAN.
When traveling, I'll use x2go, which uses the NX protocol to securely connect to a desktop (either new or already running) on my VM host from the internet. Only the ssh port needs to be open. There are x2go clients for the main 3 desktop OSes. NX uses ssh for authentication and performs 2-3x faster than any other remote desktop. For a few years, I use x2go to connect to my main Linux desktop from _that other OS_ daily - 14+ hours every day to get real work done.
Actually, this browser window and my thick email client are running inside a VM workstation that I connect with from my local workstation. VMs are so flexible that I prefer using them for nearly all applications with just a few exceptions like video editing.
The actual command I use to connect to thunderbird is:
~/bin$ more thunderbird.sh
Code:
#!/bin/bash
FJ_OPTS="--dns=172.22.22.80 --rlimit-as=4700000000 "
TB_OPTS="-no-remote "
# limit RAM VSS to 4G
PID=$(ssh -X regulus /usr/bin/firejail $FJ_OPTS /usr/bin/thunderbird $TB_OPTS $@ & )
exit;
but I want to run thunderbird inside a protected sandbox with RAM access limited. A simple command would be:
Code:
ssh -X regulus /usr/bin/thunderbird -no-remote
Open a terminal and see if that will work to your remote VM, assuming it is named "regulus" in DNS and has thunderbird installed. The "-no-remote" option is necessary for Mozilla programs so they don't ask the window manager to only show 1 instance of program X (thunderbird), even if the other instance is running on a completely different system.
If I want to run a terminal on the remote system, but have it on my local GUI, I use this:
Code:
xterm -geometry 80x22+0+630 -sb -e ssh -X regulus &
For me these are scripts and menu items in a custom menu, but there are lots of ways to do it. I typically use the same 10 systems daily and have a layout for where I want each terminal to be on my 2nd workspace. If it isn't clear, ssh keys have been exchanged between the client and server, so I'm not prompted more than once each boot to unlock my ssh keys. ssh-agent makes them available to other hosts as needed. ssh isn't just more secure, but it is more convenient than nearly any other connection/transfer method that I know. The NX protocol honors ssh keys, btw.
The only time I use virt-manager is when I'm setting up a new VM or modifying settings for an existing one. For day-to-day use, ssh is the main method used. ssh is how Unix people communication between different systems and if it isn't straight ssh, it is some other tool that is based on ssh.
Just to clarify, is this the tool you are using? https://virt-manager.org/ That is what we mean by virt-manager, also called VMM or Virtual Machine Manager. It has been a F/LOSS tool since around 2007. If Synology has stolen the VMM name for some other tool, I'd be disappointed.
I googled and found this: https://www.storagereview.com/review...manager-review which claims to be VMM, but clearly isn't.
