Did every IT professional boot up an at-home Linux box to remotely manage his or her employer’s endpoints, servers and network? Or was the number a Net Applications counting error or an artifact of its weighting system?One suspect that immediately jumped out from the data was Ubuntu, which Net Applications pegged at a whopping 1.9% during April (or 66% of the Linux total), a gigantic increase from the three-tenths of a percentage point the month prior (and the three-tenths of a point in February, too).