Am 09/20/2016 um 10:29 PM schrieb Chris Laprise:
This is a good candidate for filing an issue, but mainly for this
situation -- "A warning if an upstream VM does not implement the
firewall rules", which should include connecting to netvms.
IIRC, Qubes Manager used to grey-out the firewall tab for any vm that
was connected to a netvm. That doesn't appear to be the case now in R3.2.
As for idea 'b', I'd disagree with that. Chained proxyvms are probably
more common than you think.
sorry for my first answer directly to you - I expected a mailing list to
set/replace the "answer to" field
I still use 3.1! firewall rules are disabled for NetVMs, but not
dynamically for VMs that are not connected to a proxy VM.
I'm curious - do you have an example for a usefull local proxy(VM) chain?
Am 09/21/2016 um 12:07 PM schrieb Andrew David Wong
Normally, it wouldn't make sense to try to enforce
firewall rules for a FirewallVM. That's why the default
sys-firewall and sys-net work the way they do. However,
if you have a need for this, you're free to create your own
FirewallVMs and chain them together.
I agree - that is why my idea was to disable firewall rules for proxy VMs.
2) I can configure firewall rules for a AppVM, which will not be active if that
VM is connected
Assuming you meant "unconnected," that's right.
Actually I meant connected to a NetVM and thereby the internet. Sorry.
I looked at the firewall page. The networking pages seems to miss
exactly the information I'm looking for in the "Firewall and Proxy VMs"
section - like how the information from xen store is loaded within the
proxyVM and what happens, if something failes (e.g. Is there a risk that
proxying works, but firewall rules are ignored ?)
And: What happens if a ProxyVM does not implement the firewall service, or if
the firewall service crashes in the ProxyVM ?
I cannot find more information about the firewall mechanism than "centrally managed
in Dom0 and exposed to each Proxy VM through Xen store" from
Take a look at these pages:
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