vb.net (winform) ต้องการ ทำระบบ POS โดยมีสาขาอยู่ทั่วประเทศ ประมาณ 200 สาขา ผ่านระบบ vpn จะสอบถามเกียวกับ การ Connect DB ครับ จะแยกกันยังไง

Imports System.Security

Public Class LoginG
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        '2013-05-24 Support Windows Client & All Application
        If Request.QueryString("UserName") <> Nothing AndAlso Request.QueryString("Password") <> Nothing Then
            Dim strUserName As String = Request.QueryString("UserName") '***** Decrypt
            Dim strPassword As String = Request.QueryString("Password") '***** Decrypt
            ' ******************************************************************************************
            ' Insert user validation here
            ' For example, check the username and password in the database, encrypt/decrypt algorithm
            ' *******************************************************************************************
            FormsAuthentication.SetAuthCookie(strUserName, False)
            'FormsAuthentication.RedirectFromLoginPage(strUserName, False)

            ' Create cookie and return it
            Dim ticket As New FormsAuthenticationTicket(1,
                                                        strUserName,
                                                        DateTime.Now,
                                                        DateTime.Now.AddDays(30),
                                                        False,
                                                        "SignalR",
                                                        FormsAuthentication.FormsCookiePath)
            ' Encrypt the ticket.
            Dim encTicket As String = FormsAuthentication.Encrypt(ticket)
            ' Create the cookie.
            Response.Write(encTicket)
            Response.End()
        Else
            FormsAuthentication.SetAuthCookie("Guest", False) 'Test only for www.goodluck.smpksme.com
        End If
    End Sub