<human>: For as long as I can remember, our dog has always hated our indoor cat. If the cat is close by, she will lunge at the cat and try to bite it. If the cat is playing with something, she will lunge at it. If the cat is sitting on someone's lap, she will attack. 

Basically, no matter what our indoor cat does, it always provokes out dog. I feel I should mention that our dog is usually very friendly and loving and gets along well with our outdoor cats. Also, she hasn't always been this way towards our indoor cat... When they first met, our dog was happy and playful. Our cat, however, wasn't and would get defensive and hit the dog if it got too close. I know that this is the reason our dog is now so aggressive towards the cat, what I want to know is how to get the cat and dog to actually tolerate each other and for the dog to stop attacking the cat. How can I do this?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Dog keeps attacking the indoor cat because of past aggression from the cat. I want to teach them to tolerate each other and to stop fighting.