Logstash field value

Hi There,

I have a document which has a field values like this

dns_zone_message1 : " (none)."
dns_zone_message2 : 318186d0e64c021bfb95140287ebe32754" (none).
dns_zone_message3: (none).regionh.top.local. (none).

How to remove the brackets, quotes and dot, I want a field value like ,how to remove is it either Grok or mutate ?

I want it like

dns_zone_message1 :
dns_zone_message2 : 318186d0e64c021bfb95140287ebe32754
dns_zone_message3: regionh.top.local

Please do help me to fix it.


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