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Firewall port settings for Sophos AV updates

John Harriott over 5 years ago

Hi,

I am planning on installing Sophos AV on a RHEL 7.x server.

The server will connect to a web proxy via a firewall to pull down signature updates.

What ports and protocols must be opened on the firewall?

What URL(s) is used to provide updates?

Regards John

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0 QC over 5 years ago

Hello John,

first of all - Central managed or on-premise SEC managed? I assume the former as you don't mention a management server. Or is it perhaps a stand-alone installation?

For Central please see Domains and ports required ... and the FAQs for proxy support. The same update locations (*.sophosupd.com, *.sophosupd.net - note that in the settings/policy you enter the symbolic Sophos öocation) are used by SEC-managed endpoints, AFAIK at the moment only HTTP. Live Protection needs additional URLs.

Christian
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0 John Harriott over 5 years ago in reply to QC

Hi Christian

The installation is stand alone

John
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+1 QC over 5 years ago in reply to John Harriott

Hello John,

as said, the update location is simply Sophos which indicates the sophosupd URLs that in turn are resolved to addresses on the CDN. Protocol is (still, I think) HTTP, could be HTTPS in the future.

Christian
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0 John Harriott over 5 years ago in reply to QC

Is there documentation that explains how to use a standalone Sophos AV instance with an authenticating proxy?

Example:

The server with Sophos AV installed has a service account managed by Active Directory. When AV updates are initiated the request is sent to the proxy. The proxy in turn authenticates the user via AD before forwarding the request to Sophos CDN. How are the service account credentials provided to the proxy when running the update utility from command line? Are they stored in a configuration file? N.B. the user running the update utility is different from the service account user.

Regards John
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0 QC over 5 years ago in reply to John Harriott

Hello John,

which OS are you talking about as you say running the update utility from command line? I'm not sure I understand what you want to do as you say the user running the update utility - normally automatic updates are configured.

Christian
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0 John Harriott over 5 years ago in reply to QC

RHEL 7 is the target environment.

How are automatic updates configured?
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0 QC over 5 years ago in reply to John Harriott

Hello John,

normally (automatic) updating is configured during install. You can display the settings in effect and also change the settings with /opt/sophos-av/bin/savsetup.

Christian
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