The following information may be helpful to you in an effort to stop your dog from barking.  Listed are the most common causes of barking and suggestions for stopping it.

Chaining the dog to a fixed point with insufficient movement or restricting the dog to too small an area for long periods of time.

Provide enough space for your dog to move freely in an enclosed back yard.
A dog should not be left on a fixed chain for long periods as this can induce savagery and increases the nuisance from barking.

Deliberate or unintentional provocation by people or roaming dogs.
Eliminate direct line of sight vision by erecting a fence, wall or other solid matter.  Do not tie your dog in the front yard.

Lack of reasonable exercise.
Walking you dog keeps you and your dog fit.  The amount of exercise depends on the breed or size of the dog.  Remember when you are in a public area your dog must be on a leash.

Lack of training.
Your dog will accept kind but firm discipline.  Take it to obedience training before it develops bad barking habits.

Lack of kennel or suitable shelter from weather.
Give your dog a place to itself.  This can be a ventilated and waterproof kennel or indoor quarters.  A dog kept in an enclosed area at night usually does not bark and annoy neighbours.

Unsuitable or insufficient diet and lack of sufficient water in hot weather.
A balanced and varied diet is necessary.  Main meals should consist of processed meat and dried dog foods, supplemented by vitamins and minerals.  Keep feeding hours regular and fresh water on hand at all times.

Ill Health.
Your dog may suffer from fleas, worms or other diseases which may cause it discomfort and be the cause of its barking and whinging.  Examine your dogs regularly and seek veterinary attention if necessary.

Loneliness.
Being left alone for long periods causes frustration and boredom which leads to barking.  Give your pet more companionship and attention.