TMG initiates active FTP connections to external servers even though it’s configured for passive FTP – a problem with FTP over HTTP

“…In this blog post, I’ll be talking about another TMG problem where FTP over HTTP was failing through TMG server.

Let me first summarize the scenario:

  • Internet Explorer clients need to connect to an external FTP site through TMG server
  • Due to some other requirements, this FTP site needs to be accessed passively

FTP filter in TMG server already uses passive FTP when connecting to external FTP sites…”

Check out http://blogs.technet.com/b/nettracer/archive/2011/09/21/tmg-initiates-active-ftp-connections-to-external-servers-even-though-it-s-configured-for-passive-ftp-a-problem-with-ftp-over-http.aspx for the rest of the story.

HTH,

Deb

DEBRA LITTLEJOHN SHINDER
MVP (Enterprise Security)
“MS SECURITY”
[email protected]

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