checkpolicy_selinux(8) SELinux Policy checkpolicy checkpolicy_selinux(8)NAMEcheckpolicy_selinux - Security Enhanced Linux Policy for the checkpol‐
Security-Enhanced Linux secures the checkpolicy processes via flexible
mandatory access control.
The checkpolicy processes execute with the checkpolicy_t SELinux type.
You can check if you have these processes running by executing the ps
command with the -Z qualifier.
ps -eZ | grep checkpolicy_t
The checkpolicy_t SELinux type can be entered via the checkpol‐
icy_exec_t file type.
The default entrypoint paths for the checkpolicy_t domain are the fol‐
SELinux defines process types (domains) for each process running on the
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
checkpolicy policy is very flexible allowing users to setup their
checkpolicy processes in as secure a method as possible.
The following process types are defined for checkpolicy:
Note: semanage permissive -a checkpolicy_t can be used to make the
process type checkpolicy_t permissive. SELinux does not deny access to
permissive process types, but the AVC (SELinux denials) messages are
SELinux policy is customizable based on least access required. check‐
policy policy is extremely flexible and has several booleans that allow
you to manipulate the policy and run checkpolicy with the tightest
If you want to deny any process from ptracing or debugging any other
processes, you must turn on the deny_ptrace boolean. Enabled by
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors,
you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you
must turn on the domain_kernel_load_modules boolean. Disabled by
setsebool -P domain_kernel_load_modules 1
If you want to allow all domains to execute in fips_mode, you must turn
on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to enable reading of urandom for all domains, you must turn
on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
The SELinux process type checkpolicy_t can manage files labeled with
the following file types. The paths listed are the default paths for
these file types. Note the processes UID still need to have DAC per‐
SELinux requires files to have an extended attribute to define the file
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files.
SELinux checkpolicy policy is very flexible allowing users to setup
their checkpolicy processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the checkpolicy, if you
wanted to store files with these types in a diffent paths, you need to
execute the semanage command to sepecify alternate labeling and then
use restorecon to put the labels on disk.
semanage fcontext -a-t checkpolicy_exec_t '/srv/checkpolicy/con‐
restorecon -R -v /srv/mycheckpolicy_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for checkpolicy:
- Set files with the checkpolicy_exec_t type, if you want to transition
an executable to the checkpolicy_t domain.
Note: File context can be temporarily modified with the chcon command.
If you want to permanently change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
semanage fcontext can also be used to manipulate default file context
semanage permissive can also be used to manipulate whether or not a
process type is permissive.
semanage module can also be used to enable/disable/install/remove pol‐
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
This manual page was auto-generated using sepolicy manpage .
SEE ALSOselinux(8), checkpolicy(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8) , setsebool(8)checkpolicy 14-05-08 checkpolicy_selinux(8)