/// <summary>

/// 给IIS添加禁止IP限制

/// 仅针对iis 7及以上版本

/// 首先需要引入Microsoft.Web.Administration.dll

/// 该文件位置在windows2008的\Windows\System32\inetsrv目录下

/// 注意：生成的EXE文件必须以管理员身份运行

/// </summary>

/// <param name="ip"></param>

private static void banIP(string ip)

{

    using (ServerManager serverManager = new ServerManager())

    {

        Configuration config = serverManager.GetApplicationHostConfiguration();

        ConfigurationSection ipSecuritySection = config.GetSection("system.webServer/security/ipSecurity");

        ConfigurationElementCollection ipSecurityCollection = ipSecuritySection.GetCollection();

        ConfigurationElement addElement = ipSecurityCollection.CreateElement("add");

        addElement["ipAddress"] = ip;

        ipSecurityCollection.Add(addElement);

        serverManager.CommitChanges();

    }

}