apm_selinux(8) SELinux Policy apm apm_selinux(8)NAMEapm_selinux - Security Enhanced Linux Policy for the apm processes
Security-Enhanced Linux secures the apm processes via flexible manda‐
tory access control.
The apm processes execute with the apm_t SELinux type. You can check if
you have these processes running by executing the ps command with the
ps -eZ | grep apm_t
The apm_t SELinux type can be entered via the apm_exec_t file type.
The default entrypoint paths for the apm_t domain are the following:
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
apm policy is very flexible allowing users to setup their apm processes
in as secure a method as possible.
The following process types are defined for apm:
Note: semanage permissive -a apm_t can be used to make the process type
apm_t permissive. SELinux does not deny access to permissive process
types, but the AVC (SELinux denials) messages are still generated.
SELinux policy is customizable based on least access required. apm
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run apm with the tightest access possible.
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
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server for the apmd_t, you must turn on
the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the
apmd_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
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 apm policy is very flexible allowing users to setup their apm
processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the apm, 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 apm_exec_t '/srv/apm/content(/.*)?'
restorecon -R -v /srv/myapm_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for apm:
- Set files with the apm_exec_t type, if you want to transition an exe‐
cutable to the apm_t domain.
- Set files with the apmd_exec_t type, if you want to transition an
executable to the apmd_t domain.
/usr/sbin/apmd, /usr/sbin/acpid, /usr/sbin/powersaved
- Set files with the apmd_initrc_exec_t type, if you want to transition
an executable to the apmd_initrc_t domain.
- Set files with the apmd_lock_t type, if you want to treat the files
as apmd lock data, stored under the /var/lock directory
- Set files with the apmd_log_t type, if you want to treat the data as
apmd log data, usually stored under the /var/log directory.
- Set files with the apmd_tmp_t type, if you want to store apmd tempo‐
rary files in the /tmp directories.
- Set files with the apmd_unit_file_t type, if you want to treat the
files as apmd unit content.
- Set files with the apmd_var_lib_t type, if you want to store the apmd
files under the /var/lib directory.
- Set files with the apmd_var_run_t type, if you want to store the apmd
files under the /run or /var/run directory.
/var/run/.?acpid.socket, /var/run/apmd.pid, /var/run/acpid.pid,
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), apm(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) ,
setsebool(8)apm 14-05-08 apm_selinux(8)