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ISA 2006 FTP ISSUE

Answered ISA 2006 FTP ISSUE

  • Friday, January 04, 2013 5:19 PM
     
     
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    Hi All,

    We have setup ISA firewall in our organization for exposing the websites in the internet.

    The ISA version is 2006 and it seems to work fine for HTTP and HTTPS URL's. I have a requirement of hosting an INTERNAL FTP site through ISA firewall and i seem to find it difficult to do the same. The ISA runs in a server with single NIC card and am not in a position to do server publishing. I have tried WEB SERVER PUBLISHING and i choose FTP SERVER in the bridging. The port 21 seems to be accessible in the below fashion,

    LOCAL FTP SERVER[ running in port 21] <----------------ISA SERVER

    ISA SERVER[PORT 21 is opened in it]<----------------------- External user

    I also read that the external hit has to be using HTTP protocol which ISA will redirect to the FTP site using FTP. I am not sure if my understanding is right. I find that the rule is getting triggered when i call the dns name for the FTP rule from internet. It loops for a while and fails with errors like below,

    Error Code: 500 Internal Server Error. The operation timed out. The remote server did not respond within the set time allowed. The server might be unavailable at this time. Try again later or contact the server administrator. (12002)

    Am not sure if there is a configuration issue or if i cannot create a rule for FTP server from ISA without having another NIC card.

    Requesting your inputs and suggestions which would help me tackle the issue.

     

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