Current File : //usr/share/selinux/devel/html/cobblerd.html |
<!-- Creator : groff version 1.22.4 -->
<!-- CreationDate: Thu Apr 10 20:00:00 2025 -->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta name="generator" content="groff -Thtml, see www.gnu.org">
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<meta name="Content-Style" content="text/css">
<style type="text/css">
p { margin-top: 0; margin-bottom: 0; vertical-align: top }
pre { margin-top: 0; margin-bottom: 0; vertical-align: top }
table { margin-top: 0; margin-bottom: 0; vertical-align: top }
h1 { text-align: center }
</style>
<title>cobblerd_selinux</title>
</head>
<body>
<h1 align="center">cobblerd_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="#PORT TYPES">PORT TYPES</a><br>
<a href="#MANAGED FILES">MANAGED FILES</a><br>
<a href="#FILE CONTEXTS">FILE CONTEXTS</a><br>
<a href="#SHARING FILES">SHARING FILES</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">cobblerd_selinux
− Security Enhanced Linux Policy for the cobblerd
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the cobblerd processes via flexible mandatory
access control.</p>
<p style="margin-left:11%; margin-top: 1em">The cobblerd
processes execute with the cobblerd_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 cobblerd_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The cobblerd_t
SELinux type can be entered via the <b>cobblerd_exec_t</b>
file type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the cobblerd_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/usr/bin/cobblerd</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
cobblerd policy is very flexible allowing users to setup
their cobblerd processes in as secure a method as
possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for cobblerd:</p>
<p style="margin-left:11%; margin-top: 1em"><b>cobblerd_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a cobblerd_t</b> can be used to make
the process type cobblerd_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. cobblerd
policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run cobblerd with the
tightest access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether Cobbler can connect to the network using
TCP, you must turn on the cobbler_can_network_connect
boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
cobbler_can_network_connect 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether Cobbler can access cifs file systems, you
must turn on the cobbler_use_cifs boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
cobbler_use_cifs 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether Cobbler can access nfs file systems, you
must turn on the cobbler_use_nfs boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
cobbler_use_nfs 1</b></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>PORT TYPES
<a name="PORT TYPES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">SELinux defines
port types to represent TCP and UDP ports.</p>
<p style="margin-left:11%; margin-top: 1em">You can see the
types associated with a port by using the following
command:</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
port -l</b></p>
<p style="margin-left:11%; margin-top: 1em">Policy governs
the access confined processes have to these ports. SELinux
cobblerd policy is very flexible allowing users to setup
their cobblerd processes in as secure a method as
possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
port types are defined for cobblerd: <b><br>
cobbler_port_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Default Defined
Ports:</p>
<p style="margin-left:26%;">tcp 25151</p>
<h2>MANAGED FILES
<a name="MANAGED FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type cobblerd_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>cifs_t</b></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>cobbler_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>cobbler_var_lib_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/cobbler(/.*)?
<br>
/var/www/cobbler(/.*)? <br>
/var/cache/cobbler(/.*)? <br>
/var/lib/tftpboot/etc(/.*)? <br>
/var/lib/tftpboot/ppc(/.*)? <br>
/var/lib/tftpboot/boot(/.*)? <br>
/var/lib/tftpboot/grub(/.*)? <br>
/var/lib/tftpboot/s390x(/.*)? <br>
/var/lib/tftpboot/images(/.*)? <br>
/var/lib/tftpboot/aarch64(/.*)? <br>
/var/lib/tftpboot/images2(/.*)? <br>
/var/lib/tftpboot/pxelinux.cfg(/.*)? <br>
/var/lib/tftpboot/yaboot <br>
/var/lib/tftpboot/memdisk <br>
/var/lib/tftpboot/menu.c32 <br>
/var/lib/tftpboot/pxelinux.0</p>
<p style="margin-left:11%; margin-top: 1em"><b>dhcp_etc_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/dhcpc.*
<br>
/etc/dhcp3?(/.*)? <br>
/etc/dhcpd(6)?.conf <br>
/etc/dhcp3?/dhclient.* <br>
/etc/dhclient.*conf <br>
/etc/dhcp/dhcpd(6)?.conf <br>
/etc/dhclient-script</p>
<p style="margin-left:11%; margin-top: 1em"><b>dnsmasq_etc_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/dnsmasq.d(/.*)?
<br>
/etc/dnsmasq.conf</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>named_conf_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/rndc.*
<br>
/etc/named(/.*)? <br>
/etc/unbound(/.*)? <br>
/var/named/chroot(/.*)? <br>
/etc/named.rfc1912.zones <br>
/var/named/chroot/etc/named.rfc1912.zones <br>
/etc/named.conf <br>
/var/named/named.ca <br>
/etc/named.root.hints <br>
/var/named/chroot/etc/named.conf <br>
/etc/named.caching-nameserver.conf <br>
/var/named/chroot/var/named/named.ca <br>
/var/named/chroot/etc/named.root.hints <br>
/var/named/chroot/etc/named.caching-nameserver.conf</p>
<p style="margin-left:11%; margin-top: 1em"><b>named_zone_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/named(/.*)?
<br>
/var/named/chroot/var/named(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>nfs_t</b></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>rsync_etc_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/rsyncd.conf</p>
<p style="margin-left:11%; margin-top: 1em"><b>systemd_passwd_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/run/systemd/ask-password(/.*)?
<br>
/var/run/systemd/ask-password-block(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>tftpd_etc_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/etc/(x)?inetd.d/tftp</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
cobblerd policy is very flexible allowing users to setup
their cobblerd processes in as secure a method as
possible.</p>
<p style="margin-left:11%; margin-top: 1em"><i>The
following file types are defined for cobblerd:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>cobblerd_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the cobblerd_exec_t type, if you want to transition an
executable to the cobblerd_t domain.</p>
<p style="margin-left:11%; margin-top: 1em"><b>cobblerd_initrc_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the cobblerd_initrc_exec_t type, if you want to
transition an executable to the cobblerd_initrc_t
domain.</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>SHARING FILES
<a name="SHARING FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">If you want to
share files with multiple domains (Apache, FTP, rsync,
Samba), you can set a file context of public_content_t and
public_content_rw_t. These context allow any of the above
domains to read the content. If you want a particular domain
to write to the public_content_rw_t domain, you must set the
appropriate boolean. <br>
Allow cobblerd servers to read the /var/cobblerd directory
by adding <br>
the public_content_t file type to the directory and by
restoring the <br>
file type.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -t public_content_t
"/var/cobblerd(/.*)?" <br>
restorecon -F -R -v /var/cobblerd</b> <br>
Allow cobblerd servers to read and write
/var/cobblerd/incoming by <br>
adding the public_content_rw_t type to the directory and by
restoring <br>
the file type. You also need to turn on the
cobblerd_anon_write <br>
boolean.</p>
<p style="margin-left:11%; margin-top: 1em"><b>semanage
fcontext -a -t public_content_rw_t
"/var/cobblerd/incoming(/.*)?" <br>
restorecon -F -R -v /var/cobblerd/incoming <br>
setsebool -P cobblerd_anon_write 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether Cobbler can modify public files used for
public file transfer services., you must turn on the
cobbler_anon_write boolean.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
cobbler_anon_write 1</b></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
port</b> can also be used to manipulate the port
definitions</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),
cobblerd(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8), setsebool(8)</p>
<hr>
</body>
</html>