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Q:How to test the internet connection behind a proxy?

Q:如何测试代理背后的Internet连接?

I have this vbscript that works well on Windows 7 32-bit without proxy

In order to improve it, I seek for this solution: How to test internet connection behind a proxy ? The solution perhaps it will be in VBScript or Powershell or Batch, much as I find a way to check whether i am connected or not behind a proxy !

The piece of code to improve it when i'm behind a proxy

If there is a trick to check if i'm connected to internet when i'm behind a proxy this is my question ?

If CheckConnection = true then
    Msgbox "i'm connected to internet",vbinformation+vbSystemModal,"Check connection to internet"
Else
    Msgbox "i'm not connected to internet",vbCritical+vbSystemModal,"Check connection to internet"
End if
'***************************************************************************
Function CheckConnection()
    CheckConnection = False
        strComputer = "smtp.gmail.com"
        Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
        ("select * from Win32_PingStatus where address = '" & strComputer & "'")
        For Each objStatus in objPing
            If objStatus.Statuscode = 0 Then
                MyLoop = False
                CheckConnection = True
                Exit Function
            End If
        Next
End Function
'******************************************************************************

The hole code :

Option Explicit
Dim Title,MyScriptPath,DJBuzzRadio,MyLoop,strComputer,objPing,objStatus,FSO,FolderScript,URLICON,Icon
Title = "Radio DJ Buzz Live by © Hackoo © 2015"
MyScriptPath = WScript.ScriptFullName
Set FSO = Createobject("Scripting.FileSystemObject")
FolderScript = FSO.GetParentFolderName(MyScriptPath) 'Chemin du dossier ou se localise le Vbscript
Icon = FolderScript & "\akg.ico"
URLICON = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(104)&ChrW(97)&ChrW(99)&ChrW(107)&ChrW(111)&ChrW(111)&ChrW(46)&ChrW(97)&ChrW(108)&ChrW(119)&ChrW(97)&ChrW(121)&ChrW(115)&ChrW(100)&ChrW(97)&ChrW(116)&ChrW(97)&ChrW(46)&ChrW(110)&ChrW(101)&ChrW(116)&ChrW(47)&ChrW(97)&ChrW(107)&ChrW(103)&ChrW(46)&ChrW(105)&ChrW(99)&ChrW(111)
If Not FSO.FileExists(Icon) Then Call Download(URLICON,Icon)
DJBuzzRadio = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(119)&ChrW(119)&ChrW(119)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(111)&ChrW(99)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(115)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(47)&ChrW(100)&ChrW(106)&ChrW(98)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(95)&ChrW(119)&ChrW(105)&ChrW(110)&ChrW(100)&ChrW(111)&ChrW(119)&ChrW(115)&ChrW(46)&ChrW(109)&ChrW(112)&ChrW(51)&ChrW(46)&ChrW(97)&ChrW(115)&ChrW(120)
Call Shortcut(MyScriptPath,"DJ Buzz Radio")
MyLoop = True
If CheckConnection = True Then Call AskQuestion()
'***************************************************************************
Function CheckConnection()
    CheckConnection = False
    While MyLoop = True
        strComputer = "smtp.gmail.com"
        Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
        ("select * from Win32_PingStatus where address = '" & strComputer & "'")
        For Each objStatus in objPing
            If objStatus.Statuscode = 0 Then
                MyLoop = False
                CheckConnection = True
                Exit Function
            End If
        Next
        Pause(10) 'To sleep for 10 secondes
    Wend
End Function
'***************************************************************************
Sub Play(URL)
    Dim Sound
    Set Sound = CreateObject("WMPlayer.OCX")               
    Sound.URL = URL
    Sound.settings.volume = 100                               
    Sound.Controls.play                                     
    do while Sound.currentmedia.duration = 0                
        wscript.sleep 100                                       
    loop                                                    
    wscript.sleep (int(Sound.currentmedia.duration)+1)*1000 
End Sub
'***************************************************************************
Sub Shortcut(CheminApplication,Nom)
    Dim objShell,fso,DesktopPath,objShortCut,MyTab,strCurDir
    Set objShell = CreateObject("WScript.Shell")
    Set fso = CreateObject("Scripting.FileSystemObject")
    strCurDir = fso.GetParentFolderName(WScript.ScriptFullName)
    MyTab = Split(CheminApplication,"\")
    If Nom = "" Then
        Nom = MyTab(UBound(MyTab))
    End if
    DesktopPath = objShell.SpecialFolders("Desktop")
    Set objShortCut = objShell.CreateShortcut(DesktopPath & "\" & Nom & ".lnk")
    objShortCut.TargetPath = Dblquote(CheminApplication)
    ObjShortCut.IconLocation = strCurDir & "\akg.ico"
    objShortCut.Save
End Sub
'*****************************************************************************
'Fonction pour ajouter les doubles quotes dans une variable
Function DblQuote(Str)
    DblQuote = Chr(34) & Str & Chr(34)
End Function
'*****************************************************************************
Function AppPrevInstance()   
    With GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\.\root\cimv2")   
        With .ExecQuery("SELECT * FROM Win32_Process WHERE CommandLine LIKE " & CommandLineLike(WScript.ScriptFullName) & _
            " AND CommandLine LIKE '%WScript%' OR CommandLine LIKE '%cscript%'")   
            AppPrevInstance = (.Count > 1)   
        End With   
    End With   
End Function    
'******************************************************************************
Function CommandLineLike(ProcessPath)   
    ProcessPath = Replace(ProcessPath, "\", "\\")   
    CommandLineLike = "'%" & ProcessPath & "%'"   
End Function
'******************************************************************************
Sub Pause(NSeconds)
    Wscript.Sleep(NSeconds*1000)
End Sub
'******************************************************************************
Sub AskQuestion()
    Dim Question,MsgAR,MsgFR,MsgEN
    MsgFR = "Voulez-vous écouter DJ Buzz Radio en direct ?" & vbcr & "Oui = Pour écouter" & vbcr & "Non = Pour arrêter" & vbcr & String(50,"*")
    MsgEN = "Did you want to listen to the Radio DJ Buzz Live ?" & vbcr & "Yes = To listen" & vbcr & "No = To stop" & vbcr & String(50,"*")
    MsgAR = ChrW(1607)&ChrW(1604)&ChrW(32)&ChrW(1578)&ChrW(1585)&ChrW(1610)&ChrW(1583)&ChrW(32)&ChrW(1571)&ChrW(1606)&ChrW(32)&ChrW(1578)&ChrW(1587)&ChrW(1605)&ChrW(1593)&ChrW(32)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1610)&ChrW(1601)&ChrW(32)&ChrW(1585)&ChrW(1575)&ChrW(1583)&ChrW(1610)&ChrW(1608)&ChrW(32)&ChrW(68)&ChrW(74)&ChrW(32)&ChrW(66)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(32)&ChrW(82)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(32)&ChrW(63) & vbcr & ChrW(1606)&ChrW(1593)&ChrW(1605)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1587)&ChrW(1578)&ChrW(1605)&ChrW(1575)&ChrW(1593) & vbcr & ChrW(1604)&ChrW(1575)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1608)&ChrW(1602)&ChrW(1601) & vbcr &_
    String(50,"*")
    Question = MsgBox(MsgFR & vbcr & MsgEN & vbcr & MsgAR,vbYesNO+vbQuestion+vbSystemModal,Title)
    If Question = VbYes And Not AppPrevInstance() Then
        Call Play(DJBuzzRadio)
    End If
    If Question = VbYes And AppPrevInstance() Then 
        MsgBox "There is another instance in execution !" & VbCrLF &_
        "Il y a une autre instance en cours d'exécution !"& VbcrLF &_
        ChrW(1607)&ChrW(1606)&ChrW(1575)&ChrW(1603)&ChrW(32)&ChrW(1605)&ChrW(1579)&ChrW(1575)&ChrW(1604)&ChrW(32)&ChrW(1570)&ChrW(1582)&ChrW(1585)&ChrW(32)&ChrW(1601)&ChrW(1610)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1578)&ChrW(1606)&ChrW(1601)&ChrW(1610)&ChrW(1584)& VbcrLF &_
        CommandLineLike(WScript.ScriptName),VbExclamation+vbSystemModal,Title    
        WScript.Quit()
    End If
    If Question = VbNo And Not AppPrevInstance() Then
        Call Kill("wscript.exe")
    End If
    If Question = VbNo And AppPrevInstance() Then
        Call Kill("wscript.exe")
    End If
End Sub
'******************************************************************************
Sub Kill(MyProcess)
    Dim Titre,colItems,objItem,Processus,Question
    Titre = " Processus "& DblQuote(MyProcess) &" en cours d'exécution "
    Set colItems = GetObject("winmgmts:").ExecQuery("Select * from Win32_Process " _
    & "Where Name like '%"& MyProcess &"%' AND commandline like " & CommandLineLike(WScript.ScriptFullName) & "",,48)
    For Each objItem in colItems
        objItem.Terminate(0)' Tuer ce processus
    Next
End Sub
'******************************************************************************
Sub Download(strFileURL,strHDLocation)
    Dim objXMLHTTP,objADOStream
    Set objXMLHTTP = CreateObject("MSXML2.XMLHTTP")
    objXMLHTTP.open "GET", strFileURL, false
    objXMLHTTP.send()
    If objXMLHTTP.Status = 200 Then
        Set objADOStream = CreateObject("ADODB.Stream")
        objADOStream.Open
        objADOStream.Type = 1 'adTypeBinary
        objADOStream.Write objXMLHTTP.ResponseBody
        objADOStream.Position = 0    'Set the stream position to the start
        objADOStream.SaveToFile strHDLocation,2
        objADOStream.Close
        Set objADOStream = Nothing
    End If
    Set objXMLHTTP = Nothing 
    Shortcut MyScriptPath,"DJ Buzz Radio"
    MsgBox "Un raccourci a été crée sur votre bureau !"& vbcr &_
    "A shortcut was created on your desktop !"& vbcr &_
    ChrW(1578)&ChrW(1605)&ChrW(32)&ChrW(1573)&ChrW(1606)&ChrW(1588)&ChrW(1575)&ChrW(1569)&ChrW(32)&ChrW(1575)&ChrW(1582)&ChrW(1578)&ChrW(1589)&ChrW(1575)&ChrW(1585)&ChrW(32)&ChrW(1593)&ChrW(1604)&ChrW(1609)&ChrW(32)&ChrW(1587)&ChrW(1591)&ChrW(1581)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1605)&ChrW(1603)&ChrW(1578)&ChrW(1576),vbSystemModal+vbInformation,Title
End Sub
'**************************************************************************

我有这个VBScript,适用于Windows 7的32位无代理

In order to improve it, I seek for this solution: How to test internet connection behind a proxy ? The solution perhaps it will be in VBScript or Powershell or Batch, much as I find a way to check whether i am connected or not behind a proxy !

当我在代理服务器后面的代码来改进它

如果有一个技巧来检查,如果我连接到互联网,当我背后的代理这是我的问题?

If CheckConnection = true then
    Msgbox "i'm connected to internet",vbinformation+vbSystemModal,"Check connection to internet"
Else
    Msgbox "i'm not connected to internet",vbCritical+vbSystemModal,"Check connection to internet"
End if
'***************************************************************************
Function CheckConnection()
    CheckConnection = False
        strComputer = "smtp.gmail.com"
        Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
        ("select * from Win32_PingStatus where address = '" & strComputer & "'")
        For Each objStatus in objPing
            If objStatus.Statuscode = 0 Then
                MyLoop = False
                CheckConnection = True
                Exit Function
            End If
        Next
End Function
'******************************************************************************

孔码:

Option Explicit
Dim Title,MyScriptPath,DJBuzzRadio,MyLoop,strComputer,objPing,objStatus,FSO,FolderScript,URLICON,Icon
Title = "Radio DJ Buzz Live by © Hackoo © 2015"
MyScriptPath = WScript.ScriptFullName
Set FSO = Createobject("Scripting.FileSystemObject")
FolderScript = FSO.GetParentFolderName(MyScriptPath) 'Chemin du dossier ou se localise le Vbscript
Icon = FolderScript & "\akg.ico"
URLICON = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(104)&ChrW(97)&ChrW(99)&ChrW(107)&ChrW(111)&ChrW(111)&ChrW(46)&ChrW(97)&ChrW(108)&ChrW(119)&ChrW(97)&ChrW(121)&ChrW(115)&ChrW(100)&ChrW(97)&ChrW(116)&ChrW(97)&ChrW(46)&ChrW(110)&ChrW(101)&ChrW(116)&ChrW(47)&ChrW(97)&ChrW(107)&ChrW(103)&ChrW(46)&ChrW(105)&ChrW(99)&ChrW(111)
If Not FSO.FileExists(Icon) Then Call Download(URLICON,Icon)
DJBuzzRadio = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(119)&ChrW(119)&ChrW(119)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(111)&ChrW(99)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(115)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(47)&ChrW(100)&ChrW(106)&ChrW(98)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(95)&ChrW(119)&ChrW(105)&ChrW(110)&ChrW(100)&ChrW(111)&ChrW(119)&ChrW(115)&ChrW(46)&ChrW(109)&ChrW(112)&ChrW(51)&ChrW(46)&ChrW(97)&ChrW(115)&ChrW(120)
Call Shortcut(MyScriptPath,"DJ Buzz Radio")
MyLoop = True
If CheckConnection = True Then Call AskQuestion()
'***************************************************************************
Function CheckConnection()
    CheckConnection = False
    While MyLoop = True
        strComputer = "smtp.gmail.com"
        Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
        ("select * from Win32_PingStatus where address = '" & strComputer & "'")
        For Each objStatus in objPing
            If objStatus.Statuscode = 0 Then
                MyLoop = False
                CheckConnection = True
                Exit Function
            End If
        Next
        Pause(10) 'To sleep for 10 secondes
    Wend
End Function
'***************************************************************************
Sub Play(URL)
    Dim Sound
    Set Sound = CreateObject("WMPlayer.OCX")               
    Sound.URL = URL
    Sound.settings.volume = 100                               
    Sound.Controls.play                                     
    do while Sound.currentmedia.duration = 0                
        wscript.sleep 100                                       
    loop                                                    
    wscript.sleep (int(Sound.currentmedia.duration)+1)*1000 
End Sub
'***************************************************************************
Sub Shortcut(CheminApplication,Nom)
    Dim objShell,fso,DesktopPath,objShortCut,MyTab,strCurDir
    Set objShell = CreateObject("WScript.Shell")
    Set fso = CreateObject("Scripting.FileSystemObject")
    strCurDir = fso.GetParentFolderName(WScript.ScriptFullName)
    MyTab = Split(CheminApplication,"\")
    If Nom = "" Then
        Nom = MyTab(UBound(MyTab))
    End if
    DesktopPath = objShell.SpecialFolders("Desktop")
    Set objShortCut = objShell.CreateShortcut(DesktopPath & "\" & Nom & ".lnk")
    objShortCut.TargetPath = Dblquote(CheminApplication)
    ObjShortCut.IconLocation = strCurDir & "\akg.ico"
    objShortCut.Save
End Sub
'*****************************************************************************
'Fonction pour ajouter les doubles quotes dans une variable
Function DblQuote(Str)
    DblQuote = Chr(34) & Str & Chr(34)
End Function
'*****************************************************************************
Function AppPrevInstance()   
    With GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\.\root\cimv2")   
        With .ExecQuery("SELECT * FROM Win32_Process WHERE CommandLine LIKE " & CommandLineLike(WScript.ScriptFullName) & _
            " AND CommandLine LIKE '%WScript%' OR CommandLine LIKE '%cscript%'")   
            AppPrevInstance = (.Count > 1)   
        End With   
    End With   
End Function    
'******************************************************************************
Function CommandLineLike(ProcessPath)   
    ProcessPath = Replace(ProcessPath, "\", "\\")   
    CommandLineLike = "'%" & ProcessPath & "%'"   
End Function
'******************************************************************************
Sub Pause(NSeconds)
    Wscript.Sleep(NSeconds*1000)
End Sub
'******************************************************************************
Sub AskQuestion()
    Dim Question,MsgAR,MsgFR,MsgEN
    MsgFR = "Voulez-vous écouter DJ Buzz Radio en direct ?" & vbcr & "Oui = Pour écouter" & vbcr & "Non = Pour arrêter" & vbcr & String(50,"*")
    MsgEN = "Did you want to listen to the Radio DJ Buzz Live ?" & vbcr & "Yes = To listen" & vbcr & "No = To stop" & vbcr & String(50,"*")
    MsgAR = ChrW(1607)&ChrW(1604)&ChrW(32)&ChrW(1578)&ChrW(1585)&ChrW(1610)&ChrW(1583)&ChrW(32)&ChrW(1571)&ChrW(1606)&ChrW(32)&ChrW(1578)&ChrW(1587)&ChrW(1605)&ChrW(1593)&ChrW(32)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1610)&ChrW(1601)&ChrW(32)&ChrW(1585)&ChrW(1575)&ChrW(1583)&ChrW(1610)&ChrW(1608)&ChrW(32)&ChrW(68)&ChrW(74)&ChrW(32)&ChrW(66)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(32)&ChrW(82)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(32)&ChrW(63) & vbcr & ChrW(1606)&ChrW(1593)&ChrW(1605)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1587)&ChrW(1578)&ChrW(1605)&ChrW(1575)&ChrW(1593) & vbcr & ChrW(1604)&ChrW(1575)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1608)&ChrW(1602)&ChrW(1601) & vbcr &_
    String(50,"*")
    Question = MsgBox(MsgFR & vbcr & MsgEN & vbcr & MsgAR,vbYesNO+vbQuestion+vbSystemModal,Title)
    If Question = VbYes And Not AppPrevInstance() Then
        Call Play(DJBuzzRadio)
    End If
    If Question = VbYes And AppPrevInstance() Then 
        MsgBox "There is another instance in execution !" & VbCrLF &_
        "Il y a une autre instance en cours d'exécution !"& VbcrLF &_
        ChrW(1607)&ChrW(1606)&ChrW(1575)&ChrW(1603)&ChrW(32)&ChrW(1605)&ChrW(1579)&ChrW(1575)&ChrW(1604)&ChrW(32)&ChrW(1570)&ChrW(1582)&ChrW(1585)&ChrW(32)&ChrW(1601)&ChrW(1610)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1578)&ChrW(1606)&ChrW(1601)&ChrW(1610)&ChrW(1584)& VbcrLF &_
        CommandLineLike(WScript.ScriptName),VbExclamation+vbSystemModal,Title    
        WScript.Quit()
    End If
    If Question = VbNo And Not AppPrevInstance() Then
        Call Kill("wscript.exe")
    End If
    If Question = VbNo And AppPrevInstance() Then
        Call Kill("wscript.exe")
    End If
End Sub
'******************************************************************************
Sub Kill(MyProcess)
    Dim Titre,colItems,objItem,Processus,Question
    Titre = " Processus "& DblQuote(MyProcess) &" en cours d'exécution "
    Set colItems = GetObject("winmgmts:").ExecQuery("Select * from Win32_Process " _
    & "Where Name like '%"& MyProcess &"%' AND commandline like " & CommandLineLike(WScript.ScriptFullName) & "",,48)
    For Each objItem in colItems
        objItem.Terminate(0)' Tuer ce processus
    Next
End Sub
'******************************************************************************
Sub Download(strFileURL,strHDLocation)
    Dim objXMLHTTP,objADOStream
    Set objXMLHTTP = CreateObject("MSXML2.XMLHTTP")
    objXMLHTTP.open "GET", strFileURL, false
    objXMLHTTP.send()
    If objXMLHTTP.Status = 200 Then
        Set objADOStream = CreateObject("ADODB.Stream")
        objADOStream.Open
        objADOStream.Type = 1 'adTypeBinary
        objADOStream.Write objXMLHTTP.ResponseBody
        objADOStream.Position = 0    'Set the stream position to the start
        objADOStream.SaveToFile strHDLocation,2
        objADOStream.Close
        Set objADOStream = Nothing
    End If
    Set objXMLHTTP = Nothing 
    Shortcut MyScriptPath,"DJ Buzz Radio"
    MsgBox "Un raccourci a été crée sur votre bureau !"& vbcr &_
    "A shortcut was created on your desktop !"& vbcr &_
    ChrW(1578)&ChrW(1605)&ChrW(32)&ChrW(1573)&ChrW(1606)&ChrW(1588)&ChrW(1575)&ChrW(1569)&ChrW(32)&ChrW(1575)&ChrW(1582)&ChrW(1578)&ChrW(1589)&ChrW(1575)&ChrW(1585)&ChrW(32)&ChrW(1593)&ChrW(1604)&ChrW(1609)&ChrW(32)&ChrW(1587)&ChrW(1591)&ChrW(1581)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1605)&ChrW(1603)&ChrW(1578)&ChrW(1576),vbSystemModal+vbInformation,Title
End Sub
'**************************************************************************
answer1: 回答1:

If you mean the settings of the local computer you can query the registry:

REG QUERY "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v  ProxyEnable

If the value is 0x1 then the there is set proxy. You can check also the proxy value through the value of ProxyServer at the same location. More info here.

You can check if your external IP is the same like your internal IP address. This uses winhttpjs.bat

for /f "skip=1 tokens=* delims=" %%a in ('winhhttpjs.bat "http://www.telize.com/ip" -saveTo con') do (
    set "ip=%%a"
)
ipconfig| find "%ip%" || (
  echo not real IP/proxy
)

如果你指的是本地计算机的设置,你可以查询注册表:

REG QUERY "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v  ProxyEnable

如果值为0x1然后有设置代理。你可以检查代理的价值通过代理服务器在同一地点的价值。更多信息在这里。

You can check if your external IP is the same like your internal IP address. This uses winhttpjs.bat

for /f "skip=1 tokens=* delims=" %%a in ('winhhttpjs.bat "http://www.telize.com/ip" -saveTo con') do (
    set "ip=%%a"
)
ipconfig| find "%ip%" || (
  echo not real IP/proxy
)
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