Gareth McAuley fired his side ahead early on in Belfast, ghosting in at the back post unmarked to tap the ball home, before Kyle Lafferty extended the lead shortly after with a cool finish inside the area.
Despite the Green and White Army being unable to add to their advantage in a somewhat quiet second half, they managed to see out the victory to climb to the top of the early standings.
Relive how the game unfolded with Sports Mole's live text coverage below.
STARTING XI: Carroll, McLaughlin, McAuley, Baird, McGinn, Davis, Lafferty, Norwood, Ferguson, Hughes, Ward
SUBSTITUTES: McGovern, Mannus, McGivern, McCullough, McKay, Evans, Clingan, McCourt, McClaughlin, Magennis, Reeves
STARTING XI: Nielsen, Naes, Davidsen, Gregersen, Nattestad, Hansson, Benjaminsen, Holst, Klettskard, Justinussen, Edmundsson
SUBSTITUTES: Thomasen, Gestson, Hanssen, Serensen, Mellemgaard, Baldvinsson, Vatnhamar, Olsen, Bartalstovu, Djurhuus, A. Hansen, B. Hansen
2 - Northern Ireland have scored two first-half goals for the first time since August 2012 (v Finland). Primed.— OptaJoe (@OptaJoe) October 11, 2014