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smalldog
Level 12

Authenticate required

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Hi All, I have problem: set policy require authenticate when access internet. Users authenticate success and can surf webs but when access ftp server (for firefox browsers that will show box to input username and pass, but for IE that just notify authentication required, not show box to input username and password). Anyone here see this before? how to fix it? Thanks!

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McAfee Employee

Re: Authenticate required

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Hello,

This is actually not a Web Gateway issue, it is actually a browser behavior, Firefox will "allow" prompts for FTP username and passwords, whereas IE, will not, and you must specify the username and password in the URL.

Microsoft has a KB on it:

http://technet.microsoft.com/en-us/library/bb794745.aspx

How to access an FTP site that is not anonymous using Internet Explorer

Symptom: Internet Explorer cannot access FTP sites requiring credentials.

Issue: When FTP requests are sent over HTTP for Web proxy clients, only anonymous access is allowed. To use Internet Explorer as an FTP client when an FTP server requires authentication, you must configure Internet Explorer for direct FTP access.

Solution: Enable the Enable folder view for FTP sites check box in Internet Explorer. This causes Internet Explorer to prompt for credentials. Then specify credentials in the following format: ftp://usernameSmiley Tongueassword@ftp.usdirectcom.net/password@ftp.usdirectcom.net/. Alternatively, configure the client as a SecureNAT or Firewall client and access the FTP server using an alternative FTP client.

~Jon

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3 Replies
McAfee Employee

Re: Authenticate required

Jump to solution

Hello,

This is actually not a Web Gateway issue, it is actually a browser behavior, Firefox will "allow" prompts for FTP username and passwords, whereas IE, will not, and you must specify the username and password in the URL.

Microsoft has a KB on it:

http://technet.microsoft.com/en-us/library/bb794745.aspx

How to access an FTP site that is not anonymous using Internet Explorer

Symptom: Internet Explorer cannot access FTP sites requiring credentials.

Issue: When FTP requests are sent over HTTP for Web proxy clients, only anonymous access is allowed. To use Internet Explorer as an FTP client when an FTP server requires authentication, you must configure Internet Explorer for direct FTP access.

Solution: Enable the Enable folder view for FTP sites check box in Internet Explorer. This causes Internet Explorer to prompt for credentials. Then specify credentials in the following format: ftp://usernameSmiley Tongueassword@ftp.usdirectcom.net/password@ftp.usdirectcom.net/. Alternatively, configure the client as a SecureNAT or Firewall client and access the FTP server using an alternative FTP client.

~Jon

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imtrying
Level 10

Re: Authenticate required

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I have a question with the passing of the FTP creds.  It appears that if you pass then in the url that they would be in clear text.  Is there a way to allow secure exchange of the credentials?

Thanks

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asabban
Level 17

Re: Authenticate required

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Hello,

as far as I know FTP is an unsecure protocol and does not provide any way to encrypt the credentials. You could use authentication server to enforce a secure NTLM authentication from a users web browser before FTP access is granted, but the FTP protocol will remain plain-text.

Best,

Andre

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