However, we strongly recommend that cluster ports be secured externally as well with iptables/pf since otherwise other ports of cluster are vulnerable as well - like anyone will be able to SST from a donor since no checks are performed there against any whitelist/blacklist.
But, again, this shouldn't crash the server. It is being investigated in lp:1153727.
I can reproduce this.
However, we strongly recommend that cluster ports be secured externally as well with iptables/pf since otherwise other ports of cluster are vulnerable as well - like anyone will be able to SST from a donor since no checks are performed there against any whitelist/ blacklist.
But, again, this shouldn't crash the server. It is being investigated in lp:1153727.