Got problems overnight. On all servers traffic died down and looks like below - what went wrong please? Here is what I did:
apt-get install dnsmasq
/etc/resolv.conf nameserver 127.0.0.1
/etc/dnsmasq.conf server=216.87.84.211 #open.nic us server=84.200.69.80 #dns.watch us server=84.200.70.40 #dns.watch us server=194.150.168.168 server=62.113.203.99 server=188.165.200.156 server=5.9.49.12 server=193.183.98.154 server=46.101.89.89 cache-size=10000 conf-file=usr/share/dnsmasq-base/trust-anchors.conf dnssec dnssec-check-unsigned
etc/init.d/dnsmasq restart
vnstat -h eth0 ^ r | rt rt rt | rt rt rt rt rt rt rt rt | rt rt rt rt rt rt rt r rt rt rt rt rt | rt rt rt rt rt rt rt rt r r r rt rt rt rt rt rt rt | rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt | rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt | rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt | rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt | rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt rt -+---------------------------------------------------------------------------> | 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11