public DnsQueryResponse Resolve(string host, NsType queryType, NsClass queryClass, ProtocolType protocol, TsigMessageSecurityProvider provider)
{
foreach (var server in GetDnsServers())
{
try {
return(Resolve(server, host, queryType, queryClass, protocol, provider));
} catch (Exception ex) {
Console.WriteLine(string.Format("DnsQueryRequest.Resolve: Could not resolve host {0}: {1}", host, ex));
}
}
return(null);
}
public async Task <DnsQueryResponse> Resolve(string host, NsType queryType, NsClass queryClass, ProtocolType protocol, TsigMessageSecurityProvider provider)
{
string dnsServer = string.Empty;
IPAddressCollection dnsServerCollection = Tools.DiscoverDnsServerAddresses();
if (dnsServerCollection.Count == 0)
{
throw new Exception("Couldn't detect local DNS Server.");
}
dnsServer = dnsServerCollection[0].ToString();
if (String.IsNullOrEmpty(dnsServer))
{
throw new Exception("Couldn't detect local DNS Server.");
}
return(await Resolve(dnsServer, host, queryType, queryClass, protocol, provider));
}
public DnsQueryResponse Resolve(string host, NsType queryType, NsClass queryClass, ProtocolType protocol, TsigMessageSecurityProvider provider)
{
string dnsServer = string.Empty;
// Test for Unix/Linux OS
if (Tools.IsPlatformLinuxUnix())
{
dnsServer = Tools.DiscoverUnixDnsServerAddress();
}
else
{
IPAddressCollection dnsServerCollection = Tools.DiscoverDnsServerAddresses();
if (dnsServerCollection.Count == 0)
{
throw new Exception("Couldn't detect local DNS Server.");
}
dnsServer = dnsServerCollection[0].ToString();
}
if (String.IsNullOrEmpty(dnsServer))
{
throw new Exception("Couldn't detect local DNS Server.");
}
return(Resolve(dnsServer, host, queryType, queryClass, protocol, provider));
}
