Unknown villian, just sat down played like 4-5 hands (0/0)

No-Limit Hold'em, $1.00 BB (8 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

SB ($124)
BB ($74.20)
UTG ($114.55)
UTG+1 ($115.40)
MP1 ($205.20)
MP2 ($111.25)
Hero (CO) ($124.95)
Button ($77.80)

Preflop: Hero is CO with J, J
4 folds, Hero bets $3.50, Button calls $3.50, 2 folds

Flop: ($8.50) 2, 6, 7 (2 players)
Hero bets $7.10, Button calls $7.10

Turn: ($22.70) 4 (2 players)
Hero bets $17, Button raises $34

I get it in , he´s prolly a fish cause of his stacksize and lol minraisament.
Any pair+draw is possible and of chourse sets/straights but imo his range is wide enough here.

If we call we are likely getting it in on river, so I like jamming myself incase he has a combo draw of some sort that he turned. If you are confident hes got you no point in peeling.

Honestly I don't think getting it in with overpairs is a good strategy for NL cash. It really only works if you know villain takes his hands too far, as you are counting on top pair, smaller overpairs, and semibluffs to get it in for you to make money. In this case, you don't yet know that about villain.

You can bet less on the flop and still kill the drawing odds for hands you are ahead of. For the turn, you can bet less or you can check and call, hoping to induce a barrel again on the river. In general try and get to a cheap showdown. If you have evidence that he will go all the way with things that you beat, different story.