[openstack-dev] [Neutron]One security issue about floating ip
vishvananda at gmail.com
Thu Jun 26 21:07:49 UTC 2014
I missed that going in, but it appears that clean_conntrack is not done on
disassociate, just during migration. It sounds like we should remove the
explicit call in migrate, and just always call it from remove_floating_ip.
On Jun 26, 2014, at 1:48 PM, Brian Haley <brian.haley at hp.com> wrote:
> Signed PGP part
> I believe nova-network does this by using 'conntrack -D -r $fixed_ip' when the
> floating IP goes away (search for clean_conntrack), Neutron doesn't when it
> removes the floating IP. Seems like it's possible to close most of that gap
> in the l3-agent - when it removes the IP from it's qg- interface it can do a
> similar operation.
> On 06/26/2014 03:36 PM, Vishvananda Ishaya wrote:
> > I believe this will affect nova-network as well. We probably should use
> > something like the linux cutter utility to kill any ongoing connections
> > after we remove the nat rule.
> > Vish
> > On Jun 25, 2014, at 8:18 PM, Xurong Yang <idopra at gmail.com> wrote:
> >> Hi folks,
> >> After we create an SSH connection to a VM via its floating ip, even
> >> though we have removed the floating ip association, we can still access
> >> the VM via that connection. Namely, SSH is not disconnected when the
> >> floating ip is not valid. Any good solution about this security issue?
> >> Thanks Xurong Yang _______________________________________________
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