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<title>greylist_milter_selinux</title>
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<h1 align="center">greylist_milter_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">greylist_milter_selinux
− Security Enhanced Linux Policy for the
greylist_milter processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the greylist_milter processes via flexible
mandatory access control.</p>
<p style="margin-left:11%; margin-top: 1em">The
greylist_milter processes execute with the greylist_milter_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 greylist_milter_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The
greylist_milter_t SELinux type can be entered via the
<b>greylist_milter_exec_t</b> file type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the greylist_milter_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/usr/sbin/sqlgrey,
/usr/sbin/milter-greylist</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
greylist_milter policy is very flexible allowing users to
setup their greylist_milter processes in as secure a method
as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for greylist_milter:</p>
<p style="margin-left:11%; margin-top: 1em"><b>greylist_milter_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a greylist_milter_t</b> can be used
to make the process type greylist_milter_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.
greylist_milter policy is extremely flexible and has several
booleans that allow you to manipulate the policy and run
greylist_milter with the tightest access possible.</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 greylist_milter_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/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>greylist_milter_data_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/sqlgrey(/.*)?
<br>
/var/lib/milter-greylist(/.*)? <br>
/var/run/milter-greylist(/.*)? <br>
/var/run/sqlgrey.pid <br>
/var/run/milter-greylist.pid</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>
<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
greylist_milter policy is very flexible allowing users to
setup their greylist_milter 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">greylist_milter
policy stores data with multiple different file context
types under the /var/run/milter-greylist 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
dirctory you would execute the following command:</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -e /var/run/milter-greylist /srv/milter-greylist
<br>
restorecon -R -v /srv/milter-greylist</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 greylist_milter, 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 greylist_milter_data_t
’/srv/mygreylist_milter_content(/.*)?’ <br>
restorecon -R -v /srv/mygreylist_milter_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
greylist_milter:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>greylist_milter_data_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the greylist_milter_data_t type, if you want to treat
the files as greylist milter content. <br>
Paths:</p>
<p style="margin-left:18%;">/var/lib/sqlgrey(/.*)?,
/var/lib/milter-greylist(/.*)?,
/var/run/milter-greylist(/.*)?, /var/run/sqlgrey.pid,
/var/run/milter-greylist.pid</p>
<p style="margin-left:11%; margin-top: 1em"><b>greylist_milter_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the greylist_milter_exec_t type, if you want to
transition an executable to the greylist_milter_t domain.
<br>
Paths:</p>
<p style="margin-left:18%;">/usr/sbin/sqlgrey,
/usr/sbin/milter-greylist</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),
greylist_milter(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8) , setsebool(8)</p>
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