The first half ended goalless, though it was not for the want of trying with both sides going close.
Early on, great work from the tricky Joe Lawal set up a chance for George Hunt, who was one on one with Farnborough’s goalkeeper but was thwarted.
Lawal later found the back of the net from a Max Worsfold cross, but the effort was ruled out for offside.
Paul Hodges was industrious throughout, and his run at the heart of the hosts’ defence almost created a chance for Lawal again, but this time the ball was deflected away for a corner.
After his two goals at Kings Langley, Josh Jackman was played through on goal but this time he missed the target.
Farnborough grew into the game after a strong opening half an hour for the Rebels, and the dangerous Michael Fernandes danced his way into the Slough penalty area before having a shot blocked.
The hosts’ recent signings then threatened, with Sam Deering curling a shot wide and Adam Coombes forcing a fine low stop from Jonathan North. The Slough keeper then had to be alert to save another deflected effort shortly after.
Heroic defending from Hunt stopped Farnborough again as he blocked four efforts in the box, and play moved down the other end with Tom Derry through on goal, but his effort was saved.
No changes were made by Neil Baker and Jon Underwood at the break, and their side was rewarded for their first half efforts with a goal five minutes into the second period – Derry converting from the penalty spot after a foul on Jackman.
Lee Togwell saw a shot blocked for a corner before Slough made all three substitutions on the hour mark, with Gabe George, Sean Fraser and Eitel Goueth introduced.
North made a fine point-blank save on 70 minutes but could do nothing to prevent a Farnborough trialist levelling the scores on 79 minutes, as he lofted the ball over the goalkeeper and applied an easy finish.
Slough kept searching for a winner, with Hodges again influential twice in the closing ten minutes. First, a solo run ended with the goalkeeper saving with an outstretched leg and three minutes from time, Hodges went past three players only to see his shot saved again.
Slough Town Line up
Jonathan North, Josh Jackman (Sean Fraser 60), Freddie Grant (Gabe George 60), Mark Nisbet, Lee Togwell, Scott Davies, George Hunt, Max Worsfold, Paul Hodges, Joe Lawal (Eitel Goueth 60), Tom Derry. Substitutes: Eitel Goueth, Sean Fraser, Gabe George.