// RunDNSServer starts the DNS server
func (c *MasterConfig) RunDNSServer() {
config, err := dns.NewServerDefaults()
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
config.DnsAddr = c.Options.DNSConfig.BindAddress
config.NoRec = true // do not want to deploy an open resolver
_, port, err := net.SplitHostPort(c.Options.DNSConfig.BindAddress)
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
if port != "53" {
glog.Warningf("Binding DNS on port %v instead of 53 (you may need to run as root and update your config), using %s which will not resolve from all locations", port, c.Options.DNSConfig.BindAddress)
}
if ok, err := cmdutil.TryListen(c.Options.DNSConfig.BindAddress); !ok {
glog.Warningf("Could not start DNS: %v", err)
return
}
go func() {
err := dns.ListenAndServe(config, c.DNSServerClient(), c.EtcdHelper.Client.(*etcdclient.Client))
glog.Fatalf("Could not start DNS: %v", err)
}()
cmdutil.WaitForSuccessfulDial(false, "tcp", c.Options.DNSConfig.BindAddress, 100*time.Millisecond, 100*time.Millisecond, 100)
glog.Infof("DNS listening at %s", c.Options.DNSConfig.BindAddress)
}
// RunDNSServer starts the DNS server
func (c *MasterConfig) RunDNSServer() {
config, err := dns.NewServerDefaults()
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
switch c.Options.DNSConfig.BindNetwork {
case "tcp":
config.BindNetwork = "ip"
case "tcp4":
config.BindNetwork = "ipv4"
case "tcp6":
config.BindNetwork = "ipv6"
}
config.DnsAddr = c.Options.DNSConfig.BindAddress
config.NoRec = !c.Options.DNSConfig.AllowRecursiveQueries
_, port, err := net.SplitHostPort(c.Options.DNSConfig.BindAddress)
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
if port != "53" {
glog.Warningf("Binding DNS on port %v instead of 53, which may not be resolvable from all clients", port)
}
if ok, err := cmdutil.TryListen(c.Options.DNSConfig.BindNetwork, c.Options.DNSConfig.BindAddress); !ok {
glog.Warningf("Could not start DNS: %v", err)
return
}
go func() {
etcdClient, err := etcd.GetAndTestEtcdClient(c.Options.EtcdClientInfo)
if err != nil {
glog.Fatalf("Could not get etcd client: %v", err)
return
}
err = dns.ListenAndServe(config, c.DNSServerClient(), etcdClient)
glog.Fatalf("Could not start DNS: %v", err)
}()
cmdutil.WaitForSuccessfulDial(false, "tcp", c.Options.DNSConfig.BindAddress, 100*time.Millisecond, 100*time.Millisecond, 100)
glog.Infof("DNS listening at %s", c.Options.DNSConfig.BindAddress)
}
// RunDNSServer starts the DNS server
func (c *MasterConfig) RunDNSServer() {
config, err := dns.NewServerDefaults()
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
switch c.Options.DNSConfig.BindNetwork {
case "tcp":
config.BindNetwork = "ip"
case "tcp4":
config.BindNetwork = "ipv4"
case "tcp6":
config.BindNetwork = "ipv6"
}
config.DnsAddr = c.Options.DNSConfig.BindAddress
config.NoRec = !c.Options.DNSConfig.AllowRecursiveQueries
_, port, err := net.SplitHostPort(c.Options.DNSConfig.BindAddress)
if err != nil {
glog.Fatalf("Could not start DNS: %v", err)
}
if port != "53" {
glog.Warningf("Binding DNS on port %v instead of 53 (you may need to run as root and update your config), using %s which will not resolve from all locations", port, c.Options.DNSConfig.BindAddress)
}
if ok, err := cmdutil.TryListen(c.Options.DNSConfig.BindNetwork, c.Options.DNSConfig.BindAddress); !ok {
glog.Warningf("Could not start DNS: %v", err)
return
}
go func() {
err := dns.ListenAndServe(config, c.DNSServerClient(), c.EtcdClient)
glog.Fatalf("Could not start DNS: %v", err)
}()
cmdutil.WaitForSuccessfulDial(false, "tcp", c.Options.DNSConfig.BindAddress, 100*time.Millisecond, 100*time.Millisecond, 100)
glog.Infof("DNS listening at %s", c.Options.DNSConfig.BindAddress)
}