To stop the BIND server, you will need to use the Terminal and check if it was started by launchd as it should have been. In Terminal, try:
launchctl list | grep isc
In the resulting list of files should be 'org.isc.named'; if not, then the BIND server was started in some other way and I cannot help with that (although someone else will probably have more knowledge).
If successfully listed as running, insert the command (in Terminal):
sudo launchctl unload -w \
/System/Library/LaunchDaemons/org.isc.named.plist
You will be asked for YOUR password in order to run the command as root; if no error is reported on completion, try the check above again, when you should find nothing in the resulting list.
This advice was given earlier in this thread by people far more knowledgeable than I!!
Message was edited by: Jan C