semanage-fcontext(8) semanage-fcontext(8)
NAME
semanage-fcontext - SELinux Policy Management file context tool
SYNOPSIS
semanage fcontext [-h] [-n] [-N] [-S STORE] [ --add ( -t TYPE -f FTYPE
-r RANGE -s SEUSER | -e EQUAL ) FILE_SPEC ) | --delete ( -t TYPE -f
FTYPE | -e EQUAL ) FILE_SPEC ) | --deleteall | --extract | --list [-C]
| --modify ( -t TYPE -f FTYPE -r RANGE -s SEUSER | -e EQUAL ) FILE_SPEC
) ]
DESCRIPTION
semanage is used to configure certain elements of SELinux policy with-
out requiring modification to or recompilation from policy sources.
semanage fcontext is used to manage the default file system labeling
on an SELinux system. This command maps file paths using regular
expressions to SELinux labels.
FILE_SPEC may contain either a fully qualified path, or a Perl compati-
ble regular expression (PCRE), describing fully qualified path(s). The
only PCRE flag in use is PCRE2_DOTALL, which causes a wildcard '.' to
match anything, including a new line. Strings representing paths are
processed as bytes (as opposed to Unicode), meaning that non-ASCII
characters are not matched by a single wildcard.
Note, that file context definitions specified using 'semanage fcontext'
(i.e. local file context modifications stored in file_contexts.local)
have higher priority than those specified in policy modules. This
means that whenever a match for given file path is found in file_con-
texts.local, no other file context definitions are considered. Entries
in file_contexts.local are processed from most recent one to the old-
est, with first match being used (as opposed to the most specific
match, which is used when matching other file context definitions).
All regular expressions should therefore be as specific as possible, to
avoid unintentionally impacting other parts of the filesystem.
OPTIONS
-h, --help
show this help message and exit
-n, --noheading
Do not print heading when listing the specified object type
-N, --noreload
Do not reload policy after commit
-C, --locallist
List local customizations
-S STORE, --store STORE
Select an alternate SELinux Policy Store to manage
-a, --add
Add a record of the specified object type
-d, --delete
Delete a record of the specified object type
-m, --modify
Modify a record of the specified object type
-l, --list
List records of the specified object type
-E, --extract
Extract customizable commands, for use within a transaction
-D, --deleteall
Remove all local customizations
-e EQUAL, --equal EQUAL
Substitute target path with sourcepath when generating default
label. This is used with fcontext. Requires source and target
path arguments. The context labeling for the target subtree is
made equivalent to that defined for the source.
-f [{a,f,d,c,b,s,l,p}], --ftype [{a,f,d,c,b,s,l,p}]
File Type. This is used with fcontext. Requires a file type as
shown in the mode field by ls, e.g. use 'd' to match only direc-
tories or 'f' to match only regular files. The following file
type options can be passed: f (regular file),d (directory),c
(character device), b (block device),s (socket),l (symbolic
link),p (named pipe). If you do not specify a file type, the
file type will default to "all files".
-s SEUSER, --seuser SEUSER
SELinux user name
-t TYPE, --type TYPE
SELinux Type for the object
-r RANGE, --range RANGE
MLS/MCS Security Range (MLS/MCS Systems only) SELinux Range for
SELinux login mapping defaults to the SELinux user record range.
SELinux Range for SELinux user defaults to s0.
EXAMPLE
remember to run restorecon after you set the file context
Add file-context for everything under /web
# semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
# restorecon -R -v /web
Substitute /home1 with /home when setting file context
# semanage fcontext -a -e /home /home1
# restorecon -R -v /home1
For home directories under top level directory, for example /disk6/home,
execute the following commands.
# semanage fcontext -a -t home_root_t "/disk6"
# semanage fcontext -a -e /home /disk6/home
# restorecon -R -v /disk6
SEE ALSO
selinux(8), semanage(8)
AUTHOR
This man page was written by Daniel Walsh <dwalsh AT redhat.com>
20130617 semanage-fcontext(8)