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jproulx | Here's a fun one. DDoS on one of my user's VMs (which I can't just cut off) is running my hypervisor out of nf_conntrack slots. | 18:54 |
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jproulx | I've upped nf_conntrack_max to keep the hypervisor a head of the client but wondering if there's any better way to isolate this resource per VM or is it hopelessly shared? | 18:54 |
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spotz | jproulx: Could you migrate it to an isolated coompute? | 20:20 |
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jproulx | If it comes to it yes, I can probably manually frob iptables to set max connections on the tap device...as I think of it I'm about 100% sure security-groups can't help me here, but perhaps they should be able to. | 20:29 |
jproulx | right now mitigation done my the tenant is keeping things in line so not "on fire" for me, but that's a bit upside down so may have a feature request brewing if my theories work out. | 20:31 |
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spotz | jproulx: Yeah unless something has changed recently security groups can't do that, not sure Octavia could help either | 21:03 |
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