[Koha] Port 8080

How to open port 8080 for Koha? I have installed Koha and configured the koha-httpd.conf to listen to 80 and 8080. Yet http://localhost:8080/ gives Page Load Error (Failed to connect) -- A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. — Robert Heinlein’s