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¡¡¡¡1.mysqlÊý¾Ý¿âȨÏÞ¿ØÖÆÎÊÌâ

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[code]select host,user,password,delete_priv,update_priv,drop_priv from user;[/code]

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[code]mysql> select host,user,password,delete_priv,update_priv,drop_priv from
user;
| host | user | password | delete_priv | update_priv | drop_priv |
| localhost | root |0e4941f53f6fa106 | Y | Y | Y |
| % | root | | Y | Y | Y |
| localhost | | | Y | Y | Y |
| % | | | N | N | N |
4 rows in set (0.00 sec)[/code]

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[code]delete from user where host="%" and user="root";[/code]

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[code]delete from user where host="localhost" and user="";[/code]

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¡¡¡¡Use master

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    [code]ServerName;Sky;InstanceName;sky;IsClustered;No;
    Version;8.00.194;tcp;3341;np;\\sky\pipe\MSSQL$XHT310\sql\query;[/code]

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    [code]using System;
    using System.Net.Sockets;
    using System.Net;
    using System.Text;
    using System.Threading;
    namespace ConsoleApplication3
    {
    class Class1
    {
    //´´½¨Ò»¸öUDPCLIENTʵÀý
    private static UdpClient m_Client;
    //LISTENÓÃÀ´»ñÈ¡·µ»ØµÄÐÅÏ¢
    public static string Listen(string hostip)
    {
    string HostIP = hostip;
    IPAddress thisIP = IPAddress.Parse(HostIP);
    IPEndPoint host = new IPEndPoint(thisIP,1434);
    byte [] data = m_Client.Receive(ref host);
    Encoding ASCII = Encoding.ASCII;
    String strData = ASCII.GetString(data);
    return strData;
    }
    //SEND
    public static void Send(string hostip)
    {
    string HostIP = hostip;
    byte [] buffer = {02};
    //02ΪҪ·¢Ë͵ÄÊý¾Ý£¬Ö»ÓÐ02¡¢03¡¢04ÓлØÓ¦
    int ecode = m_Client.Send(buffer,1,HostIP,1434);
    //ecodeÓÃÀ´·µ»ØÊÇ·ñ³É¹¦·¢ËÍ
    if(ecode <= 0)
    {
    Console.WriteLine("·¢ËÍʱ³ö´í£º" + ecode);
    }
    }
    //¶Ô·µ»ØµÄÐÅÏ¢µÄ¼òµ¥µÄ´¦Àí
    public static void OutputInfo(string strdata)
    {
    string str = strdata;
    //str.le
    char [] that = {¡®;¡®,¡®;¡®};
    string [] strofthis =str.Split(that);
    //int i= 0 ;
    for(int i=0;i {
    Console.Write(strofthis[i]);
    Console.Write(¡®\n¡®);
    }
    }
    //ÊäÈëIP
    public static string InputHostIP()
    {
    Console.Write("enter the ip you want to scan:\n\n");
    string hostip =Console.ReadLine();
    Console.Write(¡®\n¡®);
    return hostip;
    }
    //EXIT
    public static void Exit()
    {
    Console.WriteLine("if you want to exit ,just input 1\n");
    int a = Console.Read();
    if(a!= 1)
    {
    Console.WriteLine("if you want to exit ,just input 1\n");
    Console.Read();
    }
    else
    {
    }
    }
    [STAThread]
    static void Main(string[] args)
    {
    string HostIP;
    HostIP = InputHostIP();
    Console.WriteLine("Begin to send udp to the host");
    m_Client = new UdpClient();
    Send(HostIP);
    string strData=Listen(HostIP);
    OutputInfo(strData);
    Exit();
    }
    }
    }[/code]

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    [code]ServerName;AWEN;
    InstanceName;AWEN;
    IsClustered;No;
    Version;8.00.194;
    tcp;1044; £¨TCPµÄ¶Ë¿Ú£¬¿É¼û¾ÍËã¸ÄÁ˶˿ÚÒ²ÊǺÜÈÝÒ×ÕÒµ½µÄ£©
    np;\\AWEN\pipe\MSSQL$XHT310\sql\query;[/code]

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