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DNS log files

Hello,

I'm a beginner on Sophos UTM and I'm wondering where is the DNS log file where I can find all the logs regarding the requests that have been done between my Firewall Sophos and the DNS server.

Thank you,

Antonin

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FormerMember over 3 years ago +1 suggested

Hi antonio guevara , Thank you for reaching out to the Community! Check out the following document for log name and service locations: Sophos UTM: Log names and service locations . You can check…

0 FormerMember over 3 years ago

Hi antonio guevara,

Thank you for reaching out to the Community!

Check out the following document for log name and service locations: Sophos UTM: Log names and service locations.

You can check the named.log as well as packet filter logs for the DNS queries. Did you select Log unique DNS requests under > Network Protection > Firewall > Advanced > Logging Options > Log unique DNS requests?

Log unique DNS requests: Sophos UTM will log all outgoing requests to DNS servers and their outcome. The log records are marked by the string "DNS request

Thanks,
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0 BAlfson over 3 years ago

Salut Antonin and welcome to the UTM Community!

If you're looking for the FQDNs for which name resolution was requested, I don't know of a way to see that other than by doing a packet capture.

Cheers - Bob

Sophos UTM Community Moderator
Sophos Certified Architect - UTM
Sophos Certified Engineer - XG
Gold Solution Partner since 2005

MediaSoft, Inc. USA
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0 antonio guevara over 3 years ago in reply to FormerMember

Hello Harsh,

Thank you for sharing with me this document. I found it there!

I didn't select Log unique DNS requests, that's why I can't see a bad resolution from my DNS that are located in another network?

Thanks,

Antonin
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0 antonio guevara over 3 years ago in reply to BAlfson

Hello Bob,

Thank you for your answer.

Sincerely,

Antonin
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