Danny Cowley's reign as Pompey head coach got off to a winning start against Ipswich at Fratton Park.
The hosts fell behind to James Norwood's strike, but Tom Naylor converted a Ronan Curtis corner to level the scores before the break.
And Cowley's men secured a 2-1 victory after the break, when Marcus Harness drilled home at the second attempt following another ball into the box by Curtis.