/// <summary> /// Checks if a domain exists in the DNS server's cache /// </summary> /// <params> /// <param name="dnsIp">DNS server's IP address</param> /// <param name="query">Query to be executed</param> /// </params> /// <returns>True if it exists</returns> private bool ExistsInDnsServerCache(string dnsIp, string query) { var r = new Heijden.DNS.Resolver(dnsIp) { Recursion = false }; if (r.Query(query, Heijden.DNS.QType.A, Heijden.DNS.QClass.IN).Answers.Count > 0) { Found?.Invoke(query, null); return(true); } return(false); }
public Address() { _resolver = new Resolver("8.8.8.8") {UseCache = true, TimeOut = 5, TransportType = TransportType.Tcp}; Log.Debug("Default DNS Servers: {DnsServers}", _resolver.DnsServer); _resolver.OnVerbose += _resolver_OnVerbose; }
private void _resolver_OnVerbose(object sender, Resolver.VerboseEventArgs e) { Log.Debug("DNS Resolver Verbose Message: {Message}", e.Message); }