RE: Are there security downsides to allowing outgoing Internet DNS queries?

[Larry Cannell]

Couple of points here to clarify:

I work in a company where we presently have 13,000 users of NetMeeting and
climbing everyday. Putting all of them on the DMZ is impractical.

We are only using the document sharing (ie. data conferencing with t.120)
part of NetMeeting. We have found this to be very beneficial (hence, the
large growth). Audio and video is another problem altogether and one I don't
have to worry about today.

The only option I can come up with is to proxy the winsock calls (ms-proxy
or aventail). Pretty expensive option. I have heard talk of a t.120 proxy
but have never seen a real product.

Larry

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