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How can I unblock Mac OS' messages app's uploading of media?

David Brown

I have web filtering enabled, the Personal Network Storage category is allowed, and testing the usden-edge.icloud-content.com domain in the Policy Test tool is approved. However, when I try to send messages via iMessage in the Messages app I get this:

2016:11:29-20:02:41 gw httpproxy[5486]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="PUT" srcip="192.168.1.36" dstip="17.248.133.169" user="" group="" ad_domain="" statuscode="502" cached="0" profile="REF_DefaultHTTPProfile (Default Web Filter Profile)" filteraction="REF_HttCffParenFilte (Protection Filter Action)" size="2795" request="0x14e80400" url="usden-edge.icloud-content.com/D2xwoVEBWLMvJbICoOpq referer="" error="Received invalid request from client" authtime="0" dnstime="643" cattime="289" avscantime="0" fullreqtime="4685" device="0" auth="0" ua="IMTransferAgent/1000 CFNetwork/807.1.3 Darwin/16.1.0 (x86_64)" exceptions="" category="170" reputation="unverified" categoryname="Personal Network Storage"

error="Received invalid request from client" is the concerning part. I'd be fine bypassing the proxy for these requests, but usden-edge.icloud-content.com resolves to multiple IP addresses via DNS round-robin, and the DNS group only picks up one IP address when I add it.

Is there another way to let these requests bypass the proxy, or even better, see what's going on with the invalid client request and fix it?

Thanks!



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  • +1

    Hi, David, and welcome to the UTM Community!

    statuscode="502"

    Try an exception for AntiVirus scanning. Any luck?

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson

    Thank you for your reply! I don't know what changed, but I disabled antivirus and re-enabled it and it seems to be working now. It's possible it may have been specific to a group message and my testing recently has been to a single recipient, but it's late enough now that I don't want to try. I'll try that tomorrow.

    And just to be clear, the exception I'd create would be in Web Protection -> Filtering Options -> Exceptions tab, correct?

  • +1 in reply to David Brown

    Yes, a couple of exceptions seem to have done the trick. Thank you! For future reference I told it to ignore everything for the following:

    https://setup.icloud.com/.*
    https://[A-Za-z0-9.-]+\.icloud-content.com/.*

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