It's probably nothing to worry about. But if they're zone transfers, you can prevent that (BIND 8.x syntax ...) with allow-transfer in your named.conf. ie:
zone "domain.com" { allow-transfer { 123.456.7.8; }; }; Also, if you're worried about BIND security, you might want to look into running it under chroot. I believe SecurityFocus and linux.com have good tutorials. Steve On Sat, Jun 03, 2000 at 11:30:46PM +0200, Igor Mozetic wrote: > > I'm observing TCP connections to port 53 (domain) to our > (secondary) name server from unknown locations. > ippl.log looks like: > > Jun 3 21:51:59 domain connection attempt from [x.x.x.x] > (x.x.x.x:3302->y.y.y.y:53) > > As far as I understand, these are not DNS queries since they > are UDP. Is this a break-in attemtp, should I ignore it, how > to prevent it (TCP wrappers don't work here) ... ? > > -Igor Mozetic > > -- Steve Zinck <[EMAIL PROTECTED]> http://nerd.halifax.ns.ca