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winddlover_9858's avatar
winddlover_9858
Icon for Nimbostratus rankNimbostratus
Oct 12, 2009

Firepass logon prompt customization

Hi All,

 

 

I am trying to customize Firepass logon page via webdav. I don't want to use index.html as it will break pre-logon check. What I am doing is to edit .inc file and put the required inforamation in it and uploaded to sandbox folder on Firepass.

 

 

All it is working well. The only issue is that I want to customize the logon box

 

including adjusting font size and put frame outside to make it a bit nice.

 

 

However, it seems no option to do it by changing inc file. Could someone advice me if there is another way to do this rather than editing index.htm?

 

 

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  • Jared_Townsley_'s avatar
    Jared_Townsley_
    Historic F5 Account
    Oct 30, 2009
    External logon pages can be used in conjunction with pre-logon sequences.

     

    Replacing the index.htm file however is not compatible with pre-logon sequences.
  • Mike_61719's avatar
    Mike_61719
    Icon for Cirrus rankCirrus
    Nov 02, 2009

    Posted By Jared Townsley on 10/30/2009 11:03 AM

     

     

    External logon pages can be used in conjunction with pre-logon sequences.

     

    Replacing the index.htm file however is not compatible with pre-logon sequences.

     

     

     

    How does one do this? The F5 tier 2 guys must not know how lol
  • Jared_Townsley_'s avatar
    Jared_Townsley_
    Historic F5 Account
    Nov 06, 2009
    A pre-logon sequence can contain an "External Logon Page" ending (instead of "Logon Page") that redirects users to an external server with two HTTP POST variables. The two variables are "client_data" and "post_url." The client_data contains encoded results of the pre-logon inspection. The post_url contains the URL that the external logon page must use to POST back to FirePass.

    In order to use this feature the external page must do a HTTP POST to FirePass containing client_data, username, password, tzoffsetmin=1, and mrhlogonform=1. As a security precaution, the value of client_data can only be submitted to FirePass once. It is also recommended to check the contents of post_url to make sure you are posting back to a legitimate FirePass.

    Here is an example of an External Logon Page written in PHP and HTML: 

     
    // verify post_url is valid 
   if(!preg_match("/^(http[s]?:\/\/)([^\/\<\>]+)\/([^\<\>]*)$/i", $HTTP_POST_VARS["post_url"], $host)) { 
     echo(htmlentities($HTTP_POST_VARS["post_url"])." is not a valid URL"); 
     exit; 
   } 
   // only POST to our firepass 
   if ($host[2] != "10.10.190.10") { 
     echo(htmlentities($host[2]). " is not an authorized FirePass host."); 
     exit; 
   } 
 php?> 
  
  
  
  action="" method="post">  
   "> 
    
    
   Username: 
 
   Password: