A server running Active Directory Domain Services (AD DS) is called a domain controller. It authenticates and authorizes all users and computers in a Windows domain type networkâassigning and enforcing security policies for all computers and installing or updating software.
Infectious diseases and heartworm disease. Infectious diseases, like kennel cough and canine influenza in dogs, and feline herpesvirus in cats can cause abnormal breathing. Heartworm disease can also cause abnormal breathing in dogs and cats.
As a result of either disease, fluid may back up into the lungs, making breathing difficult, or into the abdomen, giving the dog a pot-bellied appearance. Other causes of congestive heart failure in dogs include: 1  Defects in the heart walls. 2  Fluid in the sac surrounding the heart. 3  Heart rhythm abnormalities. 4  Heartworm disease. 5  Increased blood pressure. 6  Endocarditis (an infection of the heart valves).