how do you stop your dog barking at every person who comes to the door?

When our dog see's anyone heading towards the house he barks constantly and it sounds very threatening . We try to stop him but it is to hard to get his attention away from it.Then when we do catch his attention he stops for about 30 seconds then goes back to the window and starts again.

It is necessary to keep three objectives in mind when attempting to correct inappropriate or excessive barking. First, avoid the situations that tend to provoke the barking; secondly, reduce the number of barks when they do begin barking; and finally, increase the duration of the quiet times between barking sessions. It is usually very difficult to eliminate barking altogether. Remember, it is okay for a dog to briefly bark a happy greeting when you return home or “sound the alarm” when he sees something out of the usual.There are also some basic training techniques that can be done to reduce excessive barking. First of all, do yourself and your dog a favor by learning some basic dog training. You will be able to establish yourself as the leader, so that when you give the command "No Bark!" he will instantly obey. And please, do not physically punish your dog for barking. It is very hard for dogs to understand, after the fact, what they being rebuked for.It is also a good idea to praise your dog when he is not barking. This might seem silly, but it usually works. As your dog is lying around quietly, say, "Good Dog!" After the third or fourth alarm bark, say, "NO BARK!" When he stops his barking, ask him to "Sit," followed with praise and a "Good Dog!" You have then given a verbal reprimand for excessive barking and followed it up with a command and praise which indicates what you would like him to do after he barks an alarm. Try to use a quiet, soft voice which will force him to listen to you.If your dog barks immediately after you leave your home, you might want to change the way you leave. Try to act unemotional, simply saying “Bye-bye, Rover” and then walking out. Practice this when you are not really leaving your house for good. Do so by leaving your house for a short while and then quietly returning. If he is not barking, go into the house and give him lots of praise. If he is barking, verbally reprimand him and leave again. Be consistent and persistent with your training and your dog will stop barking in no time.

set up a training scenariothen put dog on leash, assuming your dog knows sit and stay and quietenforce your commands

It is very normal for a dog to bark at someone at the door or coming to the door some dogs think that it is their job to bark so you are aware that someone is there and some dogs just bark because of the sound that some one makes at the door sometimes scares them so they protect them self by barkingHope this helps Good Luck