prelink_selinux(8) prelink SELinux Policy documentation prelink_selinux(8)NAMEprelink_selinux - Security Enhanced Linux Policy for the prelink pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the prelink processes via flexible
mandatory access control.
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the pre‐
link_cron_system_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
prelink_cron_system_t, you must turn on the allow_kerberos boolean.
setsebool -P allow_kerberos 1
If you want to allow system to run with NI for the prelink_cron_sys‐
tem_t, you must turn on the allow_ypbind boolean.
setsebool -P allow_ypbind 1
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file
type.
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 prelink policy is very flexible allowing users to setup their
prelink processes in as secure a method as possible.
The following file types are defined for prelink:
prelink_cache_t
- Set files with the prelink_cache_t type, if you want to store the
files under the /var/cache directory.
prelink_cron_system_exec_t
- Set files with the prelink_cron_system_exec_t type, if you want to
transition an executable to the prelink_cron_system_t domain.
prelink_exec_t
- Set files with the prelink_exec_t type, if you want to transition an
executable to the prelink_t domain.
prelink_log_t
- Set files with the prelink_log_t type, if you want to treat the data
as prelink log data, usually stored under the /var/log directory.
Paths:
/var/log/prelink(/.*)?, /var/log/prelink.log
prelink_tmp_t
- Set files with the prelink_tmp_t type, if you want to store prelink
temporary files in the /tmp directories.
prelink_tmpfs_t
- Set files with the prelink_tmpfs_t type, if you want to store prelink
files on a tmpfs file system.
prelink_var_lib_t
- Set files with the prelink_var_lib_t type, if you want to store the
prelink files under the /var/lib directory.
Paths:
/var/lib/prelink(/.*)?, /var/lib/misc/prelink.*
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly 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.
PROCESS TYPES
SELinux defines process types (domains) for each process running on the
system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
prelink policy is very flexible allowing users to setup their prelink
processes in as secure a method as possible.
The following process types are defined for prelink:
prelink_cron_system_t, prelink_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process
type permissive. Permissive process types are not denied access by
SELinux. AVC messages will still be generated.
COMMANDS
semanage fcontext can also be used to manipulate default file context
mappings.
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‐
icy modules.
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), prelink(8), semanage(8), restorecon(8), chcon(1)dwalsh@redhat.com prelink prelink_selinux(8)
