How can I read the client s machine computer name from the browser

Question

How can I read the client s machine computer name from the browser  Is it possible using JavaScript and or ASP NET

User · Answer

It is not possible to get the users computer name with Javascript. You can get all details about the browser and network. But not more than that.

Like some one answered in one of the previous question today.

I already did a favor of visiting your website, May be I will return or refer other friends.. I also told you where I am and what OS, Browser and screen resolution I use Why do you want to know the color of my underwear? ;-)

You cannot do it using asp.net as well.

User · Answer

lt html gt   lt body onload    load    gt   lt script gt    function load           try          var ax   new ActiveXObject  WScript Network           alert  User      ax UserName           alert  Computer      ax ComputerName               catch  e           document write  Permission to access computer name is denied      lt br   gt                  lt  script gt   lt  body gt   lt  html gt

User · Answer

Browser  Operating System  Screen Colors  Screen Resolution  Flash version  and Java Support should all be detectable from JavaScript  and maybe a few more    However  computer name is not possible   EDIT  Not possible across all browser at least

User · Answer

Well you could get the ip address using asp net  then do a reverse DNS lookup on the ip to get the hostname   From the ASP NET Developer s cookbook     Performing a Reverse-DNS Lookup

User · Answer

An updated version from Kelsey      function GetInfo         var network   new ActiveXObject  WScript Network            alert  User ID       network UserName     nComputer Name       network ComputerName     nDomain Name       network UserDomain           document getElementById   lt    currUserID ClientID   gt    value   network UserName          document getElementById   lt    currMachineName ClientID   gt    value   network ComputerName          document getElementById   lt    currMachineDOmain ClientID   gt    value   network UserDomain        To store the value  add these control     lt asp HiddenField ID  currUserID  runat  server    gt   lt asp HiddenField ID  currMachineName  runat  server    gt   lt asp HiddenField ID  currMachineDOmain  runat  server    gt    Where you also can calling it from behind like this    Page ClientScript RegisterStartupScript this GetType     MachineInfo    GetInfo      true

User · Answer

Erm is there any reason why you can t just use the HttpRequest  This would be on the server side but you could pass it to the javascript if you needed to   Page Request UserHostName   HttpRequest UserHostName  The one problem with this is it would only really work in an Intranet environment otherwise it would just end up picking up the users Router or Proxy address

User · Answer

No this data is not exposed  The only data that is available is what is exposed through the HTTP request which might include their OS and other such information  But certainly not machine name

User · Answer

Try getting the client computer name in Mozilla Firefox by using the code given below   netscape security PrivilegeManager enablePrivilege   UniversalXPConnect       var dnsComp   Components classes   mozilla org network dns-service 1     var dnsSvc   dnsComp getService Components interfaces nsIDNSService   var compName   dnsSvc myHostName    Also  the same piece of code can be put as an extension  and it can called from your web page   Please find the sample code below   Extension code   var myExtension       myListener  function evt       netscape security PrivilegeManager enablePrivilege   UniversalXPConnect      var dnsComp   Components classes   mozilla org network dns-service 1     var dnsSvc   dnsComp getService Components interfaces nsIDNSService   var compName   dnsSvc myHostName  content document getElementById  compname   value   compName             document addEventListener  MyExtensionEvent   function e    myExtension myListener e      false  true     this event will raised from the webpage   Webpage Code    lt html gt   lt body onload    load    gt   lt script gt  function showcomp     alert  your computer name is     document getElementById  compname   value     function load        var element   document createElement  MyExtensionDataElement      element setAttribute  attribute1    foobar      element setAttribute  attribute2    hello world      document documentElement appendChild element   var evt   document createEvent  Events    evt initEvent  MyExtensionEvent   true  false     element dispatchEvent evt   document getElementById  compname   dispatchEvent evt     this raises the MyExtensionEvent event   which assigns the client computer name to the hidden variable     lt  script gt   lt form name  login form  id  login form  gt   lt input type    text  name    txtname  id    txtnamee  tabindex    1   gt   lt input type  hidden  name  compname  value    id    compname    gt   lt input type    button  onclick    showcomp    tabindex    2   gt    lt  form gt   lt  body gt   lt  html gt

User · Answer

You can do it with IE  sometimes  as I have done this for an internal application on an intranet which is IE only   Try the following   function GetComputerName         try           var network   new ActiveXObject  WScript Network               Show a pop up if it works         alert network computerName             catch  e          It may or may not require some specific security setting setup in IE as well to allow the browser to access the ActiveX object   Here is a link to some more info on WScript  More Information

User · Answer

There is no way to do so  as JavaScript does not have an access to computer name  file system and other local info  Security is the main purpose

[javascript] How can I read the client's machine/computer name from the browser?

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