Hi Ralf, On 11/01/17 12:52, Ralf Mattes wrote: > > Am Mittwoch, 11. Januar 2017 13:21 CET, Felipe Ferreri Tonello > <e...@felipetonello.com> schrieb: > >> Hi Ralf, >> >> On 03/01/17 21:37, Ralf Mattes wrote: >>> >>> Am Dienstag, 03. Januar 2017 19:31 CET, Felipe Ferreri Tonello >>> <e...@felipetonello.com> schrieb: >>> >>> >>>> If sched_setscheduler() returns -1, check if errno is set to EPERM. In >>>> this case the user trying to perform this operation does not have >>>> CAP_SYS_NICE[1] capability, which is *required*. >>>> >>>> [1] http://man7.org/linux/man-pages/man7/capabilities.7.html >>>> >>>> If you want this type of feature, set CAP_SYS_NICE to the group audio >>>> that you are referring. >>> >>> ??? How can I grant capabilities to a group? I thought capabilites where >>> either given to >>> a user (via /etc/security/capability.conf) or to a binary (by means of >>> setcap). >> >> AFAIK, pam_cap support users and groups. > > Not according to my local manpages (pam_cap(8) 09/23/2011 and > CAPABILITY.CONF(5) -- 09/23/2011). > Do you have any y reference for your information?
I never tested, but try out based on this reference[1] paragraph 2.2. Apparently there are two implementations for pam_cap. One supports the other doesn't. [1] http://blog.sevagas.com/?Linux-security-using-a-limited-group-PAM-modules [2] https://github.com/ekline/pamcap/blob/master/pam_capability.c [3] https://github.com/pexip/os-libcap2/blob/master/pam_cap/pam_cap.c Good luck. -- Felipe
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