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Sophos XG: How to control Linux servers to only access (centos) update mirrors ?

TwanHermans

Hi guys,

We would like to block any outgoing internet traffic from our linux farm except the linux/centos update mirrors.

What kind of FW rule should be a good solution for this ? We tried one using FQDN hosts, but the linux servers seems to go to many different domains.

 

Best regards,

Twan



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    Hi Twan,

    Look for a particular set of IP addresses or URLs associated with the Linux/CentOS updates and create an exception policy. You can then have a Firewall rule and add IP addresses of the Linux servers in the Source Hosts section and set the default action to drop. 

    Thanks,

    Sachin Gurung
    Team Lead | Sophos Technical Support
    Knowledge Base  |  @SophosSupport  |  Video tutorials
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