DirectoryEntry使用哪些端口？ [英] which port(s) are used by DirectoryEntry?

问题描述

我的目标是从远程服务器获取网站名称列表。但是我得到了例外：

My goal is to get the list of web site names from remote server. But I'm getting the exception:

RPC服务器不可用。

The RPC server is unavailable.

以下是代码：

    public List<string> GetWebSites(string serverIP)
    {
        List<string> names = new List<string>();
        DirectoryEntry Services = new DirectoryEntry(string.Format("IIS://{0}/W3SVC", serverIP));
        Services.Username = "user name";
        Services.Password = "password";
        IEnumerator ie = Services.Children.GetEnumerator();
        DirectoryEntry Server = null;

        while (ie.MoveNext())
        {
            Server = (DirectoryEntry)ie.Current;
            if (Server.SchemaClassName == "IIsWebServer")
            {
                names.Add(Server.Properties["ServerComment"][0].ToString());
            }
        }

        return names;
    }

当机器上的防火墙关闭时，此工作正常。

this works fine, when firewall is turned off on the machine.

我需要知道的是，DirectoryEntry使用哪些端口？
或者是否有其他方式获取网站名称，而不关闭防火墙？

What I need to know is, which port(s) are used by DirectoryEntry? or is there any other way to get web site names, without turning off firewall?

推荐答案

我相信LDAP协议使用TCP没有？对于非ssl应该是端口389而对于SSL来说应该是636

I believe LDAP protocol uses TCP no? Should be port 389 for non-ssl and 636 for SSL

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