If location, location, location, is the key in buying your ultimate dream home, then socialization, socialization, socialization is the key in having a dog that gets along with other dogs.
Ideally, socialization should start as soon as possible when the dog is still a puppy. It has been reported that puppies have a grace period of up to 12 weeks of age where they intensely require as much contact as possible with other people and other dogs. If this grace period passes with improper socialization, then the whole socialization process will turn out to be much more difficult and challenging.
If your dog is unpleasant towards other dogs very likely he has not been properly socialized as a puppy. The truth comes up as the dogs body stiffens in an aggressive posture and as he gives that typical gelid stare to another dog that crosses his path. The dog may as well growl and threaten to bite or he may simply bark with fear. A well socialized dog on the other hand instead will appear to be comfortable and even friendly when meeting other dogs during their walk.
However, not everything is lost if your dog is intolerant and you are not necessarily obliged to permanently walk your dog only at night when no other dogs are around. While severe cases may need the intervention of a dog behaviorist, if your dogs case is only mild there are some things you can try to do to turn him around.
5 Steps to Getting Closer to Other Dogs
These are 5 steps into getting a dog to tolerate better other dogs. If the above steps DO NOT work, a dog behaviorist should be contacted. If the above steps DO work then you can give yourself a good pat on the back for being able to successfully train your dog. Your dog has gone a long way into trusting you more and accepting dogs better, so make sure you do not forget to give your dog a good pat as well!
Disclaimer: All remedies suggested are not to be used as a substitute for professional veterinary advice. If your pet is sick please refer to your veterinarian for a hands on examination. If your pet is exhibiting behavior problems please refer to a professional pet behaviorist.