how to prevent using the same account logon at the same time?

how to prevent using the same account logon at the same time?

napisao/la Bao Xianqing -
Broj odgovora: 0

Hi, all. I am a moodle user from China. When I using moodle, I found that students can use the same account logon at the same time.

How to solve this problem? Thank you very much.

my email is ben.bamboo@gmail.com