The 27-year-old, who had fallen behind Ben Alnwick in the pecking order at London Road, links up with the Iron on a one-month deal.
Oleknik made 57 appearances in all competitions for Peterborough last season, while he has also had spells at Falkirk and Torquay United since leaving Aston Villa in 2007.
Scunthorpe take on Fleetwood Town in League One tonight.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Curzon AshtonCurzon Ashton | 23 | 14 | 3 | 6 | 32 | 18 | 14 | 45 |
| 2 | King's Lynn TownKing's Lynn | 26 | 13 | 6 | 7 | 32 | 26 | 6 | 45 |
| 3 | Scunthorpe UnitedScunthorpe | 24 | 12 | 8 | 4 | 39 | 15 | 24 | 44 |
| 4 | Kidderminster HarriersKidderminster | 23 | 13 | 4 | 6 | 36 | 17 | 19 | 43 |
| 5 | Brackley Town | 23 | 12 | 4 | 7 | 28 | 19 | 9 | 40 |
| 6 | Darlington | 24 | 10 | 9 | 5 | 31 | 24 | 7 | 39 |
| 7 | Buxton | 23 | 12 | 2 | 9 | 37 | 27 | 10 | 38 |
| 8 | Chorley | 22 | 11 | 5 | 6 | 32 | 26 | 6 | 38 |
| 9 | Hereford UnitedHereford | 24 | 10 | 7 | 7 | 32 | 24 | 8 | 37 |
| 10 | Alfreton TownAlfreton | 23 | 10 | 7 | 6 | 29 | 24 | 5 | 37 |
| 11 | Chester FCChester | 23 | 10 | 7 | 6 | 29 | 24 | 5 | 37 |
| 12 | South Shields | 25 | 11 | 3 | 11 | 40 | 37 | 3 | 36 |
| 13 | Spennymoor TownSpennymoor | 24 | 7 | 11 | 6 | 33 | 29 | 4 | 32 |
| 14 | Peterborough SportsP'boro Sports | 24 | 8 | 7 | 9 | 28 | 31 | -3 | 31 |
| 15 | SouthportSouthport | 24 | 8 | 7 | 9 | 27 | 33 | -6 | 31 |
| 16 | Scarborough AthleticScarborough Ath | 24 | 7 | 9 | 8 | 29 | 30 | -1 | 30 |
| 17 | Leamington FCLeamington | 23 | 8 | 5 | 10 | 30 | 26 | 4 | 29 |
| 18 | Oxford CityOxford City | 24 | 7 | 7 | 10 | 36 | 41 | -5 | 28 |
| 19 | Warrington Town | 26 | 5 | 9 | 12 | 22 | 35 | -13 | 24 |
| 20 | Farsley CelticFarsley Celtic | 25 | 7 | 3 | 15 | 26 | 46 | -20 | 24 |
| 21 | RadcliffeRadcliffe | 22 | 5 | 6 | 11 | 27 | 41 | -14 | 21 |
| 22 | Marine AFC | 24 | 5 | 6 | 13 | 16 | 31 | -15 | 21 |
| 23 | Needham Market | 24 | 4 | 6 | 14 | 17 | 39 | -22 | 18 |
| 24 | Rushall Olympic | 25 | 5 | 3 | 17 | 24 | 49 | -25 | 18 |
| > National League North Full Table | |||||||||
