On 13/10/16 16:33, Valeri Galtsev wrote: > Dear Experts, > > Could someone point me in the right direction: how can I disable > hybernate/suspend in CentOS 7? > > I get workstations for graduate students with decent amount of RAM (32 > GB), and for machines with large RAM I either do not have swap at all of > have some small (4 GB) swap. As I remember from older manuals, one has to > have at least twice amount of swap compared to physical RAM for > hybernate/suspend to work. This probably is what bit me: new Dells came > with keyboard that has sleep button, when one hits that button the machine > locks up. (it stays powered on, does not respond mouse, keyboard, does not > respond ping). > > I would like to disable that sleep button on keyboard. (I'm kind of trying > to avoid replacing keyboard with the ones that do not have "sleep" key). > > Thanks a lot for all your help! > > Valeri You should be able to do this with PolicyKit: https://access.redhat.com/solutions/33954 This solution is for RHEL6, but the same polkit rule should work on RHEL7.