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<h1 align="center">gssd_selinux</h1>
<a href="#NAME">NAME</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#ENTRYPOINTS">ENTRYPOINTS</a><br>
<a href="#PROCESS TYPES">PROCESS TYPES</a><br>
<a href="#BOOLEANS">BOOLEANS</a><br>
<a href="#MANAGED FILES">MANAGED FILES</a><br>
<a href="#FILE CONTEXTS">FILE CONTEXTS</a><br>
<a href="#COMMANDS">COMMANDS</a><br>
<a href="#AUTHOR">AUTHOR</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">gssd_selinux
− Security Enhanced Linux Policy for the gssd
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the gssd processes via flexible mandatory
access control.</p>
<p style="margin-left:11%; margin-top: 1em">The gssd
processes execute with the gssd_t SELinux type. You can
check if you have these processes running by executing the
<b>ps</b> command with the <b>−Z</b> qualifier.</p>
<p style="margin-left:11%; margin-top: 1em">For
example:</p>
<p style="margin-left:11%; margin-top: 1em"><b>ps -eZ |
grep gssd_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The gssd_t
SELinux type can be entered via the <b>gssd_exec_t</b> file
type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the gssd_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/usr/sbin/rpc.gssd,
/usr/sbin/rpc.svcgssd</p>
<h2>PROCESS TYPES
<a name="PROCESS TYPES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux defines
process types (domains) for each process running on the
system</p>
<p style="margin-left:11%; margin-top: 1em">You can see the
context of a process using the <b>−Z</b> option to
<b>ps</b></p>
<p style="margin-left:11%; margin-top: 1em">Policy governs
the access confined processes have to files. SELinux gssd
policy is very flexible allowing users to setup their gssd
processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for gssd:</p>
<p style="margin-left:11%; margin-top: 1em"><b>gssd_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a gssd_t</b> can be used to make the
process type gssd_t permissive. SELinux does not deny access
to permissive process types, but the AVC (SELinux denials)
messages are still generated.</p>
<h2>BOOLEANS
<a name="BOOLEANS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux policy
is customizable based on least access required. gssd policy
is extremely flexible and has several booleans that allow
you to manipulate the policy and run gssd with the tightest
access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow gssd to list tmp directories and read the kerberos
credential cache, you must turn on the gssd_read_tmp
boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
gssd_read_tmp 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow users to resolve user passwd entries directly from
ldap rather then using a sssd server, you must turn on the
authlogin_nsswitch_use_ldap boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
authlogin_nsswitch_use_ldap 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all daemons to write corefiles to /, you must turn on
the daemons_dump_core boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
daemons_dump_core 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
enable cluster mode for daemons, you must turn on the
daemons_enable_cluster_mode boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
daemons_enable_cluster_mode 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all daemons to use tcp wrappers, you must turn on the
daemons_use_tcp_wrapper boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
daemons_use_tcp_wrapper 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all daemons the ability to read/write terminals, you
must turn on the daemons_use_tty boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
daemons_use_tty 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
deny any process from ptracing or debugging any other
processes, you must turn on the deny_ptrace boolean. Enabled
by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
deny_ptrace 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow any process to mmap any file on system with attribute
file_type, you must turn on the domain_can_mmap_files
boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
domain_can_mmap_files 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all domains write to kmsg_device, while kernel is
executed with systemd.log_target=kmsg parameter, you must
turn on the domain_can_write_kmsg boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
domain_can_write_kmsg 1</b></p>
<p style="margin-left:11%; margin-top: 1em">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.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
domain_fd_use 1</b></p>
<p style="margin-left:11%; margin-top: 1em">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
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
domain_kernel_load_modules 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow all domains to execute in fips_mode, you must turn on
the fips_mode boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
fips_mode 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
enable reading of urandom for all domains, you must turn on
the global_ssp boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
global_ssp 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow confined applications to run with kerberos, you must
turn on the kerberos_enabled boolean. Enabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
kerberos_enabled 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow system to run with NIS, you must turn on the
nis_enabled boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
nis_enabled 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
allow confined applications to use nscd shared memory, you
must turn on the nscd_use_shm boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
nscd_use_shm 1</b></p>
<h2>MANAGED FILES
<a name="MANAGED FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type gssd_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 permissions.</p>
<p style="margin-left:11%; margin-top: 1em"><b>auth_cache_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/cache/coolkey(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>cluster_conf_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/cluster(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>cluster_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/pcsd(/.*)?
<br>
/var/lib/cluster(/.*)? <br>
/var/lib/openais(/.*)? <br>
/var/lib/pengine(/.*)? <br>
/var/lib/corosync(/.*)? <br>
/usr/lib/heartbeat(/.*)? <br>
/var/lib/heartbeat(/.*)? <br>
/var/lib/pacemaker(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>cluster_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/run/crm(/.*)?
<br>
/var/run/cman_.* <br>
/var/run/rsctmp(/.*)? <br>
/var/run/aisexec.* <br>
/var/run/heartbeat(/.*)? <br>
/var/run/corosync-qnetd(/.*)? <br>
/var/run/corosync-qdevice(/.*)? <br>
/var/run/cpglockd.pid <br>
/var/run/corosync.pid <br>
/var/run/rgmanager.pid <br>
/var/run/cluster/rgmanager.sk</p>
<p style="margin-left:11%; margin-top: 1em"><b>gssd_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5_host_rcache_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/cache/krb5rcache(/.*)?
<br>
/var/tmp/nfs_0 <br>
/var/tmp/DNS_25 <br>
/var/tmp/host_0 <br>
/var/tmp/imap_0 <br>
/var/tmp/HTTP_23 <br>
/var/tmp/HTTP_48 <br>
/var/tmp/ldap_55 <br>
/var/tmp/ldap_487 <br>
/var/tmp/ldapmap1_0</p>
<p style="margin-left:11%; margin-top: 1em"><b>root_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
<br>
/ <br>
/initrd</p>
<p style="margin-left:11%; margin-top: 1em"><b>security_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/selinux</p>
<p style="margin-left:11%; margin-top: 1em"><b>user_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/dev/shm/mono.*
<br>
/var/run/user(/.*)? <br>
/tmp/.X11-unix(/.*)? <br>
/tmp/.ICE-unix(/.*)? <br>
/dev/shm/pulse-shm.* <br>
/tmp/.X0-lock <br>
/tmp/hsperfdata_root <br>
/var/tmp/hsperfdata_root <br>
/home/[^/]+/tmp <br>
/home/[^/]+/.tmp <br>
/tmp/gconfd-[^/]+</p>
<p style="margin-left:11%; margin-top: 1em"><b>var_lib_nfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/nfs(/.*)?</p>
<h2>FILE CONTEXTS
<a name="FILE CONTEXTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux
requires files to have an extended attribute to define the
file type.</p>
<p style="margin-left:11%; margin-top: 1em">You can see the
context of a file using the <b>−Z</b> option to
<b>ls</b></p>
<p style="margin-left:11%; margin-top: 1em">Policy governs
the access confined processes have to these files. SELinux
gssd policy is very flexible allowing users to setup their
gssd processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em"><b>STANDARD
FILE CONTEXT</b></p>
<p style="margin-left:11%; margin-top: 1em">SELinux defines
the file context types for the gssd, 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.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -t gssd_tmp_t
’/srv/mygssd_content(/.*)?’ <br>
restorecon -R -v /srv/mygssd_content</b></p>
<p style="margin-left:11%; margin-top: 1em">Note: SELinux
often uses regular expressions to specify labels that match
multiple files.</p>
<p style="margin-left:11%; margin-top: 1em"><i>The
following file types are defined for gssd:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>gssd_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the gssd_exec_t type, if you want to transition an
executable to the gssd_t domain. <br>
Paths:</p>
<p style="margin-left:18%;">/usr/sbin/rpc.gssd,
/usr/sbin/rpc.svcgssd</p>
<p style="margin-left:11%; margin-top: 1em"><b>gssd_keytab_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the gssd_keytab_t type, if you want to treat the files
as kerberos keytab files.</p>
<p style="margin-left:11%; margin-top: 1em"><b>gssd_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the gssd_tmp_t type, if you want to store gssd
temporary files in the /tmp directories.</p>
<p style="margin-left:11%; margin-top: 1em">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 <b>semanage fcontext</b> command. This will
modify the SELinux labeling database. You will need to use
<b>restorecon</b> to apply the labels.</p>
<h2>COMMANDS
<a name="COMMANDS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext</b> can also be used to manipulate default file
context mappings.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
permissive</b> can also be used to manipulate whether or not
a process type is permissive.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
module</b> can also be used to enable/disable/install/remove
policy modules.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
boolean</b> can also be used to manipulate the booleans</p>
<p style="margin-left:11%; margin-top: 1em"><b>system-config-selinux</b>
is a GUI tool available to customize SELinux policy
settings.</p>
<h2>AUTHOR
<a name="AUTHOR"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">This manual
page was auto-generated using <b>sepolicy manpage .</b></p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">selinux(8),
gssd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) ,
setsebool(8)</p>
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