I have problem with configuring bind9 on debian (lenny) server. Generaly speaking everything is working ok but sometimes I get 404 on few domains (eg. 4stopnie.com but after few refreshes in browser site loads) or I can't validate site with validator.w3.org (error '500 Can't connect to 4stopnie.com:80 (Bad hostname '4stopnie.com')'). Domains were moved from other server. After moving I changed serial number in zone file.
$ttl 600 @ IN SOA ns.wpoznaniu.info. xxx.4stopnie.com. ( 2011011601 3600 600 86400 600) @ IN NS ns.wpoznaniu.info. @ IN A 18.104.22.168 www IN CNAME @