Free Alerts and Reports: 1.2.1.c: Deny All Other Traffic


Examine all "deny" rules to verify that all other inbound and outbound traffic is explicitly denied




 









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1.2.1.c: Deny All Other Traffic   Examine all "deny" rules to verify that all other inbound and outbound traffic is explicitly denied


Examination of all inbound and outbound "deny" rules to make sure that there is a firewall rule to deny traffic for undocumented inbound and outbound connections can help to close gaps that would allow unwanted and bad traffic. Using an explicit "deny all" or an implicit deny after allow statement can help to close such gaps.

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1.2.1.c: Deny All Other Traffic
 




Related Alerts and Reports:

1.2.1.b: Traffic Limited to Necessary
    Examine firewall configuration rules for inbound and outbound connections to verify that it’s limited to which is necessary
1.2.2.a: Protect Configuration from Unauthorized Access
    Examine desktop firewall configuration settings to verify they are secured from unauthorized access
1.2.2.b: Configurations are Synchronized
    Examine desktop firewall configurations to verify they are synchronized


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Find more information on 1.2.1.c: Deny All Other Traffic at Microsoft TechNet.