Question

在https://docs.ar-soft.de/arsoft.tools.net/上的arsoft.tools.net文档之后，我们刚开发了一个dns服务器来拦截来自网络的每个请求，一切正常！

让我们放慢脚步的是：当客户输入www.google.com（例如）时，我们想要显示或重定向到www.yahoo.com（或IP地址），任何线索如何能够我们做到了吗？

有些人在这里寻找相同的解决方案： https://arsofttoolsnet.codeplex.com/discussions?searchText=redirect

Tks

更新1：

到目前为止，这就是我所拥有的，但重定向不起作用：

class Program
{
    static void Main(string[] args)
    {
        using (DnsServer server = new DnsServer(System.Net.IPAddress.Any, 10, 10))
        {
            server.QueryReceived += OnQueryReceived;

            server.Start();

            Console.WriteLine("Press any key to stop server");
            Console.ReadLine();
        }
    }

    static async Task OnQueryReceived(object sender, QueryReceivedEventArgs e)
    {
        DnsMessage query = e.Query as DnsMessage;

        if (query == null)
            return;

        DnsMessage response = query.CreateResponseInstance();
        //response.AnswerRecords.Clear();
        //response.AdditionalRecords.Clear();

        if ((response.Questions.Count == 1))
        {
            // send query to upstream server
            DnsQuestion question = response.Questions[0];

            if (question.Name.ToString().Contains("www.google.com"))
            {
                DnsMessage upstreamResponse = await DnsClient.Default.ResolveAsync(DomainName.Parse("www.yahoo.com"), question.RecordType, question.RecordClass);
                //DnsMessage upstreamResponse = await DnsClient.Default.ResolveAsync(question.Name, question.RecordType, question.RecordClass);

                foreach (DnsRecordBase record in (upstreamResponse.AnswerRecords))
                {
                    response.AnswerRecords.Add(record);
                }
                foreach (DnsRecordBase record in (upstreamResponse.AdditionalRecords))
                {
                    response.AdditionalRecords.Add(record);
                }

                response.ReturnCode = ReturnCode.NoError;
                e.Response = response;
            }
        }
    }
}

Answer 1

过了一段时间，这是怎么做的：

dir /B [startpath]

如果你想指向某个IP地址：

class Program
{
    static void Main(string[] args)
    {
        using (DnsServer server = new DnsServer(System.Net.IPAddress.Any, 10, 10))
        {
            server.QueryReceived += OnQueryReceived;

            server.Start();

            Console.WriteLine("Press any key to stop server");
            Console.ReadLine();
        }
    }

    static async Task OnQueryReceived(object sender, QueryReceivedEventArgs e)
    {
        DnsMessage query = e.Query as DnsMessage;

        if (query == null)
            return;

        DnsMessage response = query.CreateResponseInstance();
        DnsQuestion question = response.Questions[0];
        DnsMessage upstreamResponse = await DnsClient.Default.ResolveAsync(!question.Name.ToString().Contains("www.google.com") ? question.Name : DomainName.Parse("www.yahoo.com"), question.RecordType, question.RecordClass);

        foreach (DnsRecordBase record in upstreamResponse.AnswerRecords)
        {
            response.AnswerRecords.Add(record);
        }
        foreach (DnsRecordBase record in (upstreamResponse.AdditionalRecords))
        {
            response.AdditionalRecords.Add(record);
        }

        response.ReturnCode = ReturnCode.NoError;
        e.Response = response;
    }
}

arsoft.tools.net（DNS服务器）将流量从一个URL重定向到另一个URL（DNS转发）

1 个答案: