The 27-year-old, signed from Colchester, completed the scoring in Saturday's win on his first appearance at Meadow Lane.
Jackson struck just after the hour mark, beating Daggers keeper Tony Roberts after latching onto a clever pass from Lee Hughes.
He told the Nottingham Post: "It was a good ball in to me from Hughesy and I managed to take it on.
"The keeper came out and pretty much made my mind up for me. I thought if I could get there first it was just a matter of lifting it over him and that's how it turned out. I don't get many with my right foot but it was nice to get a goal on my home debut.
"You are always looking to do well in front of your new fans and for the team to win and to get on the scoresheet was pretty much perfect for me."