Network is running a number of Mac's with Snow Leopard and having issues with DNS resolution (running Windows Active Directory environment with Windows DHCP handing out leases). Is there a way to get the Mac to force registration of the system name with the DNS server (or some way to get DHCP to register the name with the DNS server) the way Windows can be forced to do so with "ipconfig /registerdns"?
Is there something inherent to the way Windows does DHCP/DNS that isn't quite standard?
Best Answer
You can use nsupdate, either in interactive mode or with a script like this one I made :
#!/bin/sh # en0 = ethernet - en1 = airport - choose the right interface ! IPADDR=`/sbin/ifconfig en0 | grep 'inet ' | awk '{print $2}'` HOSTNAME=`hostname -f` # Optionally set the name server (if not present, it uses system default). #echo server "${DNSSERVER}" > $TMPDIR/nsupdate # Change > to >> if name server set. echo update delete "${HOSTNAME}" A > $TMPDIR/nsupdate echo update add "${HOSTNAME}" 86400 A "${IPADDR}" >> $TMPDIR/nsupdate echo show >> $TMPDIR/nsupdate echo send >> $TMPDIR/nsupdate nsupdate $TMPDIR/nsupdateThis script simply delete any previous A record, then register a new one.