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TZ670 DPI-SSL Client and Dropbox

RinconmikeRinconmike Enthusiast ✭✭
in Entry Level Firewalls

I have an issue with Dropbox that only happens when I have DPI-SSL active. Dropbox seems to work fine except when I right click on an item in windows explorer and choose share. The DB share Dialog pops up and I get the message Dropbox couldn't complete your request. Check your internet connection and try again.

When I exclude the machine from DPI-SSL I do not get this error.

I already have the following in the common name exclusion

.dropbox.com

I do not see any connection failures under show connection failures.

Any ideas?

Category: Entry Level Firewalls
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Answers

  • RinconmikeRinconmike Enthusiast ✭✭

    I found this.

    https://help.dropbox.com/accounts-billing/security/official-domains

    I added the domain

    dropboxapi.com

    and it seems to fix the issue.

    Question is why did this not show up under the connections failure.

    Is there a way on the TZ670 to see failed connections or active connections?

  • MasterRoshiMasterRoshi Moderator

    You can usually do a packet capture while you reproduce the issue and filter for any SNI's in the Client Hello (using something like WireShark) to see the domains it attempted a connection to.

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