It's quite possible actually: the two computers I have at home don't have dmidecode
installed, and ifconfig
is not in the PATH
for regular users, so I get the same string on both:
01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b
Is that the ID your students were giving you?
You should consider adding sudo
in front of ifconfig
command, and perhaps add something date-related, like stat /bin/sh | grep Change
. Still, if you don't trust your students, how do you plan to verify that the ID they provide correspond to a real system?