ROOT SERVERS
Ping to a.root-servers.net - IPV4
Ping to b.root-servers.net - IPV4
Ping to c.root-servers.net - IPV4
Ping to d.root-servers.net - IPV4
Ping to e.root-servers.net - IPV4
Ping to f.root-servers.net - IPV4
Ping to h.root-servers.net - IPV4
Ping to i.root-servers.net - IPV4
Ping to j.root-servers.net - IPV4
Ping to k.root-servers.net - IPV4
Ping to l.root-servers.net - IPV4
Ping to m.root-servers.net - IPV4
