@nikade @AllooTikeeChaat Thanks for the information on this. I may see if I can give it a test. Does XCP-ng expect to have anything like this in the future? Anything in the works already?

@borzel Yes, exactly what I was thinking. In the SmartOS community, they do something similar in that they can save the "live" configuration to a local drive or USB, for example and the state is saved for the next boot. The main reason that SmartOS (Solaris --> OpenSolaris --> Illumos based ) runs from RAM is that it helps with speed, plus it allows for a simple mechanism for upgrades in that the "data" and "VM's" are separated so a new version of the OS/hypervisor is just to boot it up. I think that this is a very nice approach and is something that would be useful for the LiveCD version that I am working on.

Hi All,

I was recently thinking that it might be helpful for people interested in XCP-ng if there was a LIveCD that they could boot up without writing to their hard drives to test it out before installing it.

With that in mind, I was not sure if XCP-ng already had a LiveCD in the works, and if so, I would be interested it getting it so that I could test on some systems before installing it.

If there is not an XCP-ng LiveCD effort, then I was thinking to try to learn enough to perhaps put one together.

Any thoughts or suggestions on this would be greatly appreciated.
Thanks and have a great weekend.

@nikade @AllooTikeeChaat Thanks for the information on this. I may see if I can give it a test. Does XCP-ng expect to have anything like this in the future? Anything in the works already?

@borzel Thanks for sharing the graphic. It looks very good, by the way.

If I interpret the design correctly then Dom0 if the critical section for which everything else is connected. Does this also suggest that if Dom0 is compromised by an attacker then the hypervisor could be halted or attacks to other VM's.

In this respect, and please forgive the analogy but doesn't the design of the core Xen hypervisor make it really seem like a Type-2 hypervisor with Dom0 providing the OS layer since everything seems to be controlled from Dom0?

Perhaps I have the interpretation wrong, though.

For a Type-1 hypervisor, my understanding is that if all of the VM's were to be stopped, or removed then the hypervisor itself would still be running securely.

I'm just trying to get some clarification on the topology.
Thanks

Hi All,

I am working on the XCP-ng LiveCD and wanted to ask about the topology of XCP-ng.

Would it be correct in that the XCP-ng core and kernel are within Dom0, or are they located outside and Dom0 is truly an independent VM?

Any information on the layout and functionality of XCP-ng would be helpful as I would like to get a full picture of how things are setup so that I can proceed with what I have in mind.

Thanks

@AllooTikeeChaat said in XenApp or similar on XCP-ng?:

XenApp/Xendesktop

Thanks for responding to my inquiry on this.

Are these closed source? If not, then I would like to explore them more on XCP-ng, but they sound closed to me.

Hello All,

I have been researching how to work with remote apps within VM's on XCP-ng and rand across some mention of Citrix XenApp that is supposed to allow us to get a single application window running in a VM which is generally called seamless mode.

Is there something like this available for XCP-ng?

@borzel I think that the "XCP-ng Live" could be nice and simple as well. Let's see if it can get working well before we give it a name, though.

@borzel Yes, exactly what I was thinking. In the SmartOS community, they do something similar in that they can save the "live" configuration to a local drive or USB, for example and the state is saved for the next boot. The main reason that SmartOS (Solaris --> OpenSolaris --> Illumos based ) runs from RAM is that it helps with speed, plus it allows for a simple mechanism for upgrades in that the "data" and "VM's" are separated so a new version of the OS/hypervisor is just to boot it up. I think that this is a very nice approach and is something that would be useful for the LiveCD version that I am working on.

Hello All,

Just an update on this.

I have found a lot of great information and may have a good way to make a type of RAM-Based XCP-ng that can be loaded from and ISO, USB, or local partition.

There are actually a number of options for making this work to include using ramdisk (ramfs) or tmpfs along with squashfs, perhaps.

Still researching this, but making progress none the less.

Thanks for the info. That really helps

Hi All,

Is there an easy way to get the running VM's ip's in Dom0? Perhaps using "xe" or something else?

Thanks