MIDFIELDER Carl Holmes was the last-minute hero as the Linnets swept past A10 rivals Cambridge City and into the third qualifying round.
Holmes was on hand to sidefoot home a David Staff cross and earn the club £7,500 after a tight affair at The Walks.
A delighted Holmes, who has set himself a 20-goal target this season, said: "I'm well chuffed. I've never been this far before and hopefully we can go on and make the first round proper.
"I was certain that Staffy was going to cross the ball and it bobbled past two Cambridge players. All I had to do was make sure I hit it right."
Linnets boss Peter Morris said: "Carl kept plugging away. I can see him going on to score a lot more goals now he has got two in two."
On chances created, Lynn deserved their place in the next round with Cambridge looking content on earning a replay at Milton Road.
The tie swung in Lynn's favour after Adam Weston replaced the injured Lee Cowling in the 60th minute.
Weston took his place in the centre of midfield and his allowed David Staff to switch to his more orthodox position of left wing-back.
Morris said: "David had been quiet in the second half, but once we moved him he was running on to the ball and causing them more problems.
"We had a few more breaks in the last 15 minutes. We were winning the second ball."
Chances were at a premium and Lynn would have held a lead going into the break had it not been for the fingertips of City keeper Martin Davis, who acrobatically turned a Lee Stephenson shot round his post in the 18th minute
Cambridge rarely threatened in the first half and Lynn's problems at the back were mostly of their own making.
The Lillywhites looked more of a threat after the interval and in the 48th minute Dean Greygoose showed his class when he superbly tipped a Colin Vowden header over the bar.
Eleven minutes later Adam Wilde tried to lob Greygoose when it would have been easier to pick out Darren Collins at the far post.
As the half wore on, Lynn began to show more invention.
In the 82nd minute a long ball from the back picked out Stephenson, but with just the keeper to beat the striker fluffed his effort.
Seconds later, Weston just had to slot the ball past Davies, but took an extra touch and was tackled.
Just as supporters were contemplating a Tuesday night trip to Milton Road, Staff, who minutes earlier had been on the end of a crude challenge from Jack
Wignall, crossed from the left and Holmes fired home.
Of the former Linnets, Matty Clements and Richard Skelly were largely anonymous, while Adie Hayes failed to make it off the bench.
Lynn: Greygoose, Anderson, Cowling (Weston 56),
Gowshall, Fuff, Johnson, Staff, Raynor, Watts (Bacon 48), Stephenson, Holmes. Subs not used:
Nobes, Blake, Jones.
Cambridge: Davies, Wignall (Holden 90), Wardley, Wooding, Vowden, Wilson, Clements,
Skelly, Wilkin, Collins, Wilde, Subs not used: Nightingale, Gutzmore, Hayes, Colton.
Referee: Green (Northampton)