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<title>krb5kdc_selinux</title>
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<h1 align="center">krb5kdc_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">krb5kdc_selinux
− Security Enhanced Linux Policy for the krb5kdc
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the krb5kdc processes via flexible mandatory
access control.</p>
<p style="margin-left:11%; margin-top: 1em">The krb5kdc
processes execute with the krb5kdc_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 krb5kdc_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The krb5kdc_t
SELinux type can be entered via the <b>krb5kdc_exec_t</b>
file type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the krb5kdc_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/usr/(kerberos/)?sbin/krb5kdc</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 krb5kdc
policy is very flexible allowing users to setup their
krb5kdc processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for krb5kdc:</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a krb5kdc_t</b> can be used to make
the process type krb5kdc_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. krb5kdc
policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run krb5kdc with the
tightest access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
dontaudit all daemons scheduling requests (setsched,
sys_nice), you must turn on the daemons_dontaudit_scheduling
boolean. Enabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
daemons_dontaudit_scheduling 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
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>
<h2>MANAGED FILES
<a name="MANAGED FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type krb5kdc_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>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/pcsd-ruby.socket <br>
/var/run/corosync-qnetd(/.*)? <br>
/var/run/corosync-qdevice(/.*)? <br>
/var/run/pcsd.socket <br>
/var/run/corosync.pid <br>
/var/run/cpglockd.pid <br>
/var/run/rgmanager.pid <br>
/var/run/cluster/rgmanager.sk</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/tmp/krb5_0.rcache2
<br>
/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>krb5kdc_lock_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/kerberos/krb5kdc/principal.*.ok
<br>
/var/kerberos/krb5kdc/from_master.*</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_log_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/log/krb5kdc.log.*</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_principal_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/krb5kdc/principal.*
<br>
/usr/var/krb5kdc/principal.* <br>
/var/kerberos/krb5kdc/principal.*</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/kdcproxy(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/run/krb5kdc(/.*)?</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>
<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
krb5kdc policy is very flexible allowing users to setup
their krb5kdc processes in as secure a method as
possible.</p>
<p style="margin-left:11%; margin-top: 1em"><b>EQUIVALENCE
DIRECTORIES</b></p>
<p style="margin-left:11%; margin-top: 1em">krb5kdc policy
stores data with multiple different file context types under
the /var/kerberos/krb5kdc directory. If you would like to
store the data in a different directory you can use the
semanage command to create an equivalence mapping. If you
wanted to store this data under the /srv directory you would
execute the following command:</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -e /var/kerberos/krb5kdc /srv/krb5kdc <br>
restorecon -R -v /srv/krb5kdc</b></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 krb5kdc, if you wanted to
store files with these types in a different paths, you need
to execute the semanage command to specify 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 krb5kdc_var_run_t
’/srv/mykrb5kdc_content(/.*)?’ <br>
restorecon -R -v /srv/mykrb5kdc_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 krb5kdc:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_conf_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_conf_t type, if you want to treat the files
as krb5kdc configuration data, usually stored under the /etc
directory. <br>
Paths:</p>
<p style="margin-left:18%;">/etc/krb5kdc(/.*)?,
/usr/var/krb5kdc(/.*)?, /var/kerberos/krb5kdc(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_exec_t type, if you want to transition an
executable to the krb5kdc_t domain.</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_lock_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_lock_t type, if you want to treat the files
as krb5kdc lock data, stored under the /var/lock directory
<br>
Paths:</p>
<p style="margin-left:18%;">/var/kerberos/krb5kdc/principal.*.ok,
/var/kerberos/krb5kdc/from_master.*</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_log_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_log_t type, if you want to treat the data
as krb5kdc log data, usually stored under the /var/log
directory.</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_principal_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_principal_t type, if you want to treat the
files as krb5kdc principal data. <br>
Paths:</p>
<p style="margin-left:18%;">/etc/krb5kdc/principal.*,
/usr/var/krb5kdc/principal.*,
/var/kerberos/krb5kdc/principal.*</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_tmp_t type, if you want to store krb5kdc
temporary files in the /tmp directories.</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_var_lib_t type, if you want to store the
krb5kdc files under the /var/lib directory.</p>
<p style="margin-left:11%; margin-top: 1em"><b>krb5kdc_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the krb5kdc_var_run_t type, if you want to store the
krb5kdc files under the /run or /var/run directory.</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),
krb5kdc(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8), setsebool(8)</p>
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