| Current File : //proc/self/root/kunden/usr/share/selinux/devel/html/sandbox_web.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>sandbox_web_selinux</title>
</head>
<body>
<h1 align="center">sandbox_web_selinux</h1>
<a href="#NAME">NAME</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#PROCESS TYPES">PROCESS TYPES</a><br>
<a href="#MCS Constrained">MCS Constrained</a><br>
<a href="#BOOLEANS">BOOLEANS</a><br>
<a href="#MANAGED FILES">MANAGED 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">sandbox_web_selinux
− Security Enhanced Linux Policy for the sandbox_web
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the sandbox_web processes via flexible
mandatory access control.</p>
<p style="margin-left:11%; margin-top: 1em">The sandbox_web
processes execute with the sandbox_web_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 sandbox_web_t</b></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
sandbox_web policy is very flexible allowing users to setup
their sandbox_web processes in as secure a method as
possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for sandbox_web:</p>
<p style="margin-left:11%; margin-top: 1em"><b>sandbox_web_t,
sandbox_web_client_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a sandbox_web_t</b> can be used to
make the process type sandbox_web_t permissive. SELinux does
not deny access to permissive process types, but the AVC
(SELinux denials) messages are still generated.</p>
<h2>MCS Constrained
<a name="MCS Constrained"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type sandbox_web_t is an MCS (Multi Category
Security) constrained type. Sometimes this separation is
referred to as sVirt. These types are usually used for
securing multi-tenant environments, such as virtualization,
containers or separation of users. The tools used to launch
MCS types, pick out a different MCS label for each process
group.</p>
<p style="margin-left:11%; margin-top: 1em">For example one
process might be launched with sandbox_web_t:s0:c1,c2, and
another process launched with sandbox_web_t:s0:c3,c4. The
SELinux kernel only allows these processes can only write to
content with a matching MCS label, or a MCS Label of s0. A
process running with the MCS level of s0:c1,c2 is not
allowed to write to content with the MCS label of
s0:c3,c4</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. sandbox_web
policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run sandbox_web with
the tightest access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
deny user domains applications to map a memory region as
both executable and writable, this is dangerous and the
executable should be reported in bugzilla, you must turn on
the deny_execmem boolean. Disabled by default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
deny_execmem 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 sandbox_web_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>fusefs_t</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="7%"></td>
<td width="85%">
<p>/var/run/user/[0-9]+/gvfs</p></td></tr>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>krb5_host_rcache_t</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/krb5_0.rcache2</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/cache/krb5rcache(/.*)?</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/nfs_0</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/DNS_25</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/host_0</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/imap_0</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/HTTP_23</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/HTTP_48</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/ldap_55</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/ldap_487</p></td></tr>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/var/tmp/ldapmap1_0</p></td></tr>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>mozilla_plugin_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>sandbox_file_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>sandbox_web_client_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>security_t</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="92%">
<p>/selinux</p></td></tr>
</table>
<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),
sandbox_web(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8), setsebool(8), sandbox_web_client_selinux(8),
sandbox_web_client_selinux(8)</p>
<hr>
</body>
</html>