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Sophos web appliance and Skype

Sarah77

Hi there everyone.

I'm trying to use Skype in my organisation through the Sophos web appliance but I'm not having much luck.

Sophos are telling me that they "do not support proxying Skype through the Sophos Web Appliance". Skype can't give me a list of https websites or IP addresses to add the the scanning exemption list.

Has anyone else managed this because I need to get this working. I can't just bypass the proxy server for Skype, what's the point of having a proxy server if you do that !!!

Surely someone else has had this issue??? Help please.

Thanks

Sarah

:29627


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    Hi Smasshed,

    Are you sure there is nothing being blocked by your browsing policy?  The best way to check is to:

    - Reproduce the problem

    - Login to web appliance

    - Wait 1 minute (for search to index)

    - Go to 'Search > By user'

    - Enter your username (domain\user) and click search

    - Look for any blocked or warned requests

    In particular if you are blocking 'Uncategorized' sites or using the 'Block public IP access' options then this will affect Skype, because Skype connects to various IP addresses (without using hostnames).

    I also tried out Skype here and can't reproduce a problem, assuming HTTPS scanning is disabled.   However, it does seem that Skype will try to send some traffic directly via default gateway even when proxy settings are explicitly set.  I wouldn't rule this out as the cause and you should probably check your firewall logs to see what Skype is doing.

    Hope this helps.

    Tom.

    :33813
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  • 0

    Hi Smasshed,

    Are you sure there is nothing being blocked by your browsing policy?  The best way to check is to:

    - Reproduce the problem

    - Login to web appliance

    - Wait 1 minute (for search to index)

    - Go to 'Search > By user'

    - Enter your username (domain\user) and click search

    - Look for any blocked or warned requests

    In particular if you are blocking 'Uncategorized' sites or using the 'Block public IP access' options then this will affect Skype, because Skype connects to various IP addresses (without using hostnames).

    I also tried out Skype here and can't reproduce a problem, assuming HTTPS scanning is disabled.   However, it does seem that Skype will try to send some traffic directly via default gateway even when proxy settings are explicitly set.  I wouldn't rule this out as the cause and you should probably check your firewall logs to see what Skype is doing.

    Hope this helps.

    Tom.

    :33813
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