fenced_selinux(8) fenced SELinux Policy documentation fenced_selinux(8)NAMEfenced_selinux - Security Enhanced Linux Policy for the fenced pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the fenced processes via flexible
mandatory access control.
BOOLEANS
SELinux policy is customizable based on least access required. fenced
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run fenced with the tightest access possible.
If you want to allow fenced domain to execute ssh, you must turn on the
fenced_can_ssh boolean.
setsebool -P fenced_can_ssh 1
If you want to allow fenced domain to connect to the network using TCP,
you must turn on the fenced_can_network_connect boolean.
setsebool -P fenced_can_network_connect 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the
fenced_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
fenced_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 fenced_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 fenced policy is very flexible allowing users to setup their
fenced processes in as secure a method as possible.
The following file types are defined for fenced:
fenced_exec_t
- Set files with the fenced_exec_t type, if you want to transition an
executable to the fenced_t domain.
Paths:
/usr/sbin/fence_tool, /usr/sbin/fence_node, /usr/sbin/fenced
fenced_lock_t
- Set files with the fenced_lock_t type, if you want to treat the files
as fenced lock data, stored under the /var/lock directory
fenced_tmp_t
- Set files with the fenced_tmp_t type, if you want to store fenced
temporary files in the /tmp directories.
fenced_tmpfs_t
- Set files with the fenced_tmpfs_t type, if you want to store fenced
files on a tmpfs file system.
fenced_var_log_t
- Set files with the fenced_var_log_t type, if you want to treat the
data as fenced var log data, usually stored under the /var/log direc‐
tory.
fenced_var_run_t
- Set files with the fenced_var_run_t type, if you want to store the
fenced files under the /run directory.
Paths:
/var/run/cluster/fenced_override, /var/run/cluster/fence_scsi.*,
/var/run/fenced.pid
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
fenced policy is very flexible allowing users to setup their fenced
processes in as secure a method as possible.
The following process types are defined for fenced:
fenced_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.
semanage boolean can also be used to manipulate the booleans
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), fenced(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com fenced fenced_selinux(8)
