2018-05-25 16:05 GMT+08:00 Daniel Braniss <[email protected]>: > > > > On 25 May 2018, at 10:02, Darius Mihai <[email protected]> wrote: > > > > On Fri, May 25, 2018 at 9:08 AM Daniel Braniss <[email protected]> > wrote: > > > >> Hi, > >> I’m trying out bhyve with different setups, but mailny FreeBSD (11.2 and > > 12), and > >> was wondering if there is any way for the client to know who is hosting > > it? > > > >> thanks, > >> danny > > > > Hi, > > > > What do you mean 'knowing who is hosting it?' > > If you mean obtaining information such as IP address or hostname of the > > host from inside the guest operating system, it should not be possible > and > > is likely a security flaw if it were allowed by default. > > ok, so not by default, but is there a way? > i don’t know why this is a security flaw - maybe security by obscurity? in > any case > since the client knows that it’s running as a bhive client, > (hw.hv_vendor), again, if > this is also a security flaw, it could be set/reset when the client is > being configured? > > thanks, > danny > >
Maybe you can use virtio-console and bhyve-vm-goagent? https://github.com/freenas/bhyve-vm-goagent Best, > > > > Operating systems should ideally be unable to determine even that the > > system is a virtual machine instead of a hardware based host; however > since > > bhyve uses VirtIO devices and other virtualization mechanisms due to > > performance issues you are indeed able to determine that the OS is > running > > in a virtual machine. More specific information should be impossible to > > obtain if not injected by the host (e.g., running a web server on the > host > > with some information, adding a virtual block device with a configuration > > file, and so on). > > > > Darius > > > >> _______________________________________________ > >> [email protected] mailing list > >> https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > >> To unsubscribe, send any mail to " > > [email protected]" > > _______________________________________________ > [email protected] mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization- > [email protected]" > -- -- Marcelo Araujo (__)[email protected] \\\'',)http://www.FreeBSD.org <http://www.freebsd.org/> \/ \ ^ Power To Server. .\. /_) _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "[email protected]"
