Author Topic: Confused about filtering by MIME Type or how to block MSN Messenger  (Read 3779 times)

aacevedo

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Re: Confused about filtering by MIME Type or how to block MSN Messenger
« Reply #15 on: July 22, 2011, 06:07:37 pm »
I could be wrong, but it is my understanding that MS servers are able to switch from secure (HTTPS by SSL servers) to plain HTTP "at will". My guess is that if the client cannot connect securely it will go the other way.

Are we talking about the same thing?

Sam Graf

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Re: Confused about filtering by MIME Type or how to block MSN Messenger
« Reply #16 on: July 22, 2011, 11:48:50 pm »
Probably.

If Messenger can move freely between secure and non-secure connections, then you're right, blocking the certificate servers isn't going to help.