>1. I assume it will get recreated automatically?

yes

>2. There's an 8 GB file in /var/log called named.run, dated today. Should it
>be there / that big?

delete it, and put

/*
comment
*/

around logging statement in /etc/namedb/named.conf

rndc reconfig

>  3. Does the address_verify.map.db need to be deleted periodically?

normally, no, I've seen it run up 1 GB with no problem, and setting the 
negative caching values low (3 hours max) keep it from exploding when hit 
with tons of forged senders/recipients.  but the spam problem is so bad 
now, deleting the file once/week is a good practice.

Len



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