Strange issue.
After few days, 2 or 3, the domain hosted on servers, stop resolve.
If i ping from inside to anydomain hosted on interworx server recice repply host unknow !
I restart netowr service, bind, etc etc and nothing of that fix.
Reboting box domains resove again !
When this happen, if ping outside from server, domains resolve correctly, just stp resolve inside box, and that create trouble cusotmers can send pop3 mails, recive error temporal dns fail etc etc
this happen again at this time, please chek asap, i cant rebot servers all days when this happen.
Its very strange , its possible i have something bad configured, but i dont think that.