针对一些虚拟主机管理软件 的确应该去深入了解 ：）

下面是以Serv-U 6.0和Sql Server 2000相结合的演示。

建表Sql 语句：

CREATE TABLE [groupaccounts] (
[id] int IDENTITY (1,1) PRIMARY KEY,
[Index] int Default 0,
[Name] nVarChar(50) default '''''''',
[Notes] nVarChar(255) default ''''''''
)
CREATE INDEX [Name] on [groupaccounts]([Name] )

CREATE TABLE [groupdiraccess] (
[id] int IDENTITY PRIMARY KEY,
[Access] nVarChar(255) default '''''''',
[Index] int Default 0,
[Name] nVarChar(50) default ''''''''
)
CREATE INDEX [Name] on [groupdiraccess]([Name] )

CREATE TABLE [groupipaccess] (
[id] int IDENTITY PRIMARY KEY,
[Access] nVarChar(255) default '''''''',
[Index] int Default 0,
[Name] nVarChar(50) default ''''''''
)
CREATE INDEX [Name] on [groupipaccess]([Name] )


CREATE TABLE [useraccounts] (
[id] int IDENTITY PRIMARY KEY,
[Access] nVarChar(255) default '''''''',
[AlwaysLogin] int Default 0,
[ChangePass] int Default 0,
[Disable] int Default 0,
[Expirationtype] int Default 0,
[Expiration] datetime Default ''''1980-1-1'''',
[Groups] nVarChar(50) default '''''''',
[HideHidden] int Default 0,
[HomeDir] nVarChar(100) default '''''''',
[idleTimeOut] int Default 0,
[LogMesfile] nVarChar(100) default '''''''',
[MaxIp] int Default -1,
[MaxSpeedDown] decimal Default 0,
[MaxSpeedUp] decimal Default 0,
[MaxUsers] int Default -1,
[Name] nVarChar(50) default '''''''',
[Needsecure] int Default 0,
[Notes] nVarChar(255) default '''''''',
[PassType] int Default 0,
[Password] nVarChar(50) default '''''''',
[Privilege] int Default 0,
[QuotaCurrent] decimal Default 0,
[QuotaEnable] int Default 0,
[QuotaMax] decimal Default 0,
[RatioCredit] decimal Default 0,
[RatioDown] int Default 0,
[RatioType] int Default 0,
[RatioUP] int Default 0,
[RelPaths] int Default 0,
[SessionTimeOut] int Default 0,
[SkeyValues] nVarChar(50) default ''''''''
)
CREATE INDEX [Name] on [useraccounts]([Name] )

CREATE TABLE [userdiraccess] (
[id] int IDENTITY PRIMARY KEY,
[Access] nVarChar(255) default '''''''',
[Index] int Default 0,
[Name] nVarChar(50) default ''''''''
)
CREATE INDEX [Name] on [userdiraccess]([Name] )

CREATE TABLE [useripaccess] (
[id] int IDENTITY PRIMARY KEY,
[Access] nVarChar(255) default '''''''',
[Index] int Default 0,
[Name] nVarChar(50) default ''''''''
)
CREATE INDEX [Name] on [useripaccess]([Name] )

ServUDaemon.ini中的ODBC信息：
ODBCSource=Serv-U||
ODBCTables=useraccounts|groupaccounts|userdiraccess|groupdiraccess|useripaccess|groupipaccess
ODBCColumns=Name|Password|SkeyValues|HomeDir|LogMesfile|Access|Disable|Needsecure|RelPaths|HideHidden|AlwaysLogin|ChangePass|QuotaEnable|MaxIp|MaxSpeedUp|MaxSpeedDown|MaxUsers|idleTimeOut|SessionTimeOut|RatioUP|RatioDown|RatioCredit|QuotaCurrent|QuotaMax|Expiration|Privilege|PassType|RatioType|Groups|Notes|Index


加密算法为随机码与MD5 32 位加密，例如：
两个随机字母：ab
用户输入密码：123456
生成的密码为：ab + MD5(ab123456)



提示：代码仅实现更改密码的功能，并不一定完全符合或达到您的需求。

<!--#include file=''''conn.asp''''-->
<!--#include file=''''include/md5.asp''''-->
<%
dim act,UserName,OldPassword,NewPassword,reNewPassword
act = Request.form("act")
if act = "update" then

UserName = Request.form("UserName")
OldPassword = Request.form("OldPassword")
NewPassword = Request.form("NewPassword")
reNewPassword = Request.form("reNewPassword")
UserName = Replace(UserName,"''''","''''")

if len(UserName)<1 or len(OldPassword)<1 or len(NewPassword)<1 or len(reNewPassword)<1 then
alert("表单没有填写完整")
end if

if trim(NewPassword)<>trim(reNewPassword) then
alert("密码与确认密码不一样")
end if

Sql0 = "select top 1 name,[password] from [useraccounts] where name = ''''"& UserName &"''''"
set rs0 = conn.execute(Sql0)
if rs0.eof and rs0.bof then
alert("用户名不存在")
else
dbname = rs0("name")
dbpassword = rs0("password")
end if

cdbpassword = left(dbpassword,2) & md5(left(dbpassword,2) & OldPassword)

if trim(cdbpassword) <> trim(dbpassword) then
alert("密码错误")
else
rndstr = MyRandc(2) ''''两位随机字母
newdbpassword = rndstr & md5(rndstr & NewPassword)
sql2 = "update [useraccounts] set [password] = ''''"& newdbpassword &"'''' where name=''''"& UserName &"''''"
conn.execute(sql2)
alert("密码已经更改，可能要几钟后才能生效")
end if
end if

function alert(x)
response.write "<script language=''''JavaScript''''>alert(''''"& replace(x,"""","\""") &"'''');history.go(-1);</script>"
conn.close
set conn = nothing
response.end
end function

function MyRandc(n)''''生成随机字符，n为字符的个数
thechr = ""
for i=1 to n
Randomize timer
zNum = cint(25*Rnd)
if zNum mod 2 = 0 then
zNum = zNum + 97
else
zNum = zNum + 65
end if
thechr = thechr & chr(zNum)
next
MyRandc = thechr
end function
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<META NAME="Author" CONTENT="海娃(51windows)">
<META NAME="Keywords" CONTENT="http://www.51windows.Net">
<title>更改FTP (Serv-U) 密码 - 51windows.net</title>
</head>
<body>
<form method="POST" action="" name="form" autocomplete="off">
<input type="hidden" name="act" value="update">
<div align="center">
<center>
  <table border="0" width="480" cellpadding="2" cellspacing="1" class="table" style="border: 1 solid #336699;font-size:14px;">
  <tr>
    <td width="100%" align="center" colspan="2" class="title" style="background:#336699;color:#FFFFFF;">更改FTP (Serv-U) 密码</td>
  </tr>

  <tr>
    <td width="30%" align="left">　用户名[√]：

u无垠育I\h网D供i5d[I
e8A^qO]6`_vH

</td>
    <td width="70%"><input class="input" type="text" maxlength=20 name="UserName" size="25" value="" /> (FTP登陆用户名)</td>
  </tr>

  <tr>
    <td width="30%" align="left">　旧密码[√]：
MSu)A#wEigy\@zK
</td>
    <td width="70%"><input class="input" type="password" maxlength=20 name="OldPassword" size="25" value="" /> (必须输入旧密码)</td>
  </tr>

  <tr>
    <td width="30%" align="left">　新密码[√]：

业2网z?中t]业s网:

</td>
    <td width="70%"><input class="input" type="password" name="NewPassword" size="25" value="" /> (输入新密码)</td>
  </tr>

  <tr>
    <td width="30%" align="left">　确　认[√]：</td>
    <td width="70%"><input class="input" type="password" name="reNewPassword" size="25" value="" /> (再次输入新密码)</td>
  </tr>

  <tr>
    <td width="100%" height="30" align="center" colspan="2"><input style="font-size:14px;" type="submit" size="10" value="确 定" class=button></td>
  </tr>
  </table>
</center>
</div>
</html>
<%
set rs = nothing
conn.close
set conn = nothing
%>

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