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Why is Port 53 exposed

SalishSwede

Periodically I do reviews of the firewall configuration.

Recently, I noticed that the UTM was listening on the WAN interface on port 53.

Why is this the case. 
This is a security problem and would explain why I've been bombarded with port scans for decades of using the Astaro/Sophos product.



Thanks!

Doug

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    This wouldn't take into account the firewall/filtering configured for this service.  The only networks allowed to make dns requests should be listed under Network Services->DNS->Allowed Networks.  Mine also shows the system listening on SMTP ports even though the service is disabled.  I guess you could always do a port scan to verify the results.

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    This wouldn't take into account the firewall/filtering configured for this service.  The only networks allowed to make dns requests should be listed under Network Services->DNS->Allowed Networks.  Mine also shows the system listening on SMTP ports even though the service is disabled.  I guess you could always do a port scan to verify the results.

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