[bitfolk] Nameserver help

Hi everyone, I could do with a bit of advice. I've set up bind with the following in named.conf.local for each domain: ---------------------------------------------------------- zone "polyvisual.co.uk" { type master; file "/etc/bind/db.polyvisual.co.uk"; }; ---------------------------------------------------------- and the following db file for each domain: ---------------------------------------------------------- ; ; BIND data file for local loopback interface ; $TTL 86400 @ SOA ns1.polyvisual.co.uk. hostmaster.polyvisual.co.uk. ( 2 ; Serial 14400 ; Refresh (4 hrs) 900 ; Retry (15 mins) 1209600 ; Expire (2 weeks) 3600 ) ; Negative Cache TTL (1 hr) NS ns1.polyvisual.co.uk. NS a.authns.bitfolk.com. NS b.authns.bitfolk.com. NS c.authns.bitfolk.com. MX 5 mail.polyvisual.co.uk. A 212.13.195.149 ns1 A 212.13.195.149 www CNAME polyvisual.co.uk. mail A 212.13.195.149 ---------------------------------------------------------- To make things easy, if I wanted to just use ns1.polyvisual.co.uk as the nameserver for each domain [rather than ns1.whateverthedomainis.co.uk] should I change the SOA to ns1.polyvisual.co.uk in each of the db files [leaving the domain name correct in the rest of the db file?] Cheers, Matt