CAPABILITY.CONF(5) Linux-PAM Manual CAPABILITY.CONF(5)NAME
capablity.conf - configuration file for the pam_cap module
DESCRIPTION
Each line of the file consists of two fields; the fields define:
<capability-list>
One or more comma-separated capabilities, specified as either the
textual capability name, or numeric capability value. Text name(s)
and numeric value(s) may be intermixed.
The special capability name all may be used to enable all
capabilities known to the local system.
The special capability name none may be used to disable all current
inheritable capabilities.
NOTE: No whitespace is pemitted between the values. The names all
and none may not be combined with any other capabilities.
<username>
One or more whitespace-separated usernames, or the wildcard *.
NOTE: The first matching entry is used. Thus, only a single
matching username entry, and/or a single wildcard entry, may be
used. A matching username entry must precede the wildcard entry in
order to be effective.
IMPORTANT: <capability-list> replaces the current process' inherited
capabilities; i.e. there is no provision for adding/subtracting from
the current set. In most environments, the inheritable set of the
process performing user authentication is 0 (empty).
If any capability name or numeric value is invalid/unknown to the local
system, the capabilities will be rejected, and the inheritable set will
not be modified.
EXAMPLES
These are some example lines which might be specified in
/etc/security/capability.conf.
# Simple
cap_sys_ptrace developer
cap_net_raw user1
# Multiple capablities
cap_net_admin,cap_net_raw jrnetadmin
# Identical, but with numeric values
12,13 jrnetadmin
# Combining names and numerics
cap_sys_admin,22,25 jrsysadmin
# Next line has no effect; user1 already matched above
5,12,13 user1
# Insure any potential capailities from calling process are dropped
none luser1 luser2
# Allow anyone to manipulate capabilities
# Will NOT apply to users matched above !
cap_setpcap *
SEE ALSOpam_cap(8), pam.d(5), pam(7), capabilities(7)AUTHOR
pam_cap was initially written by Andrew G. Morgan <morgan@kernel.org>
Linux-PAM Manual 09/23/2011 CAPABILITY.CONF(5)
