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<h1 align="center">squid_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="#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">squid_selinux
− Security Enhanced Linux Policy for the squid
processes</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Security-Enhanced
Linux secures the squid processes via flexible mandatory
access control.</p>
<p style="margin-left:11%; margin-top: 1em">The squid
processes execute with the squid_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 squid_t</b></p>
<h2>ENTRYPOINTS
<a name="ENTRYPOINTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The squid_t
SELinux type can be entered via the <b>squid_exec_t</b> file
type.</p>
<p style="margin-left:11%; margin-top: 1em">The default
entrypoint paths for the squid_t domain are the
following:</p>
<p style="margin-left:11%; margin-top: 1em">/usr/sbin/squid,
/usr/libexec/squid/cache_swap.sh</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 squid
policy is very flexible allowing users to setup their squid
processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
process types are defined for squid:</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_t,
squid_cron_t, squid_script_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Note:
<b>semanage permissive -a squid_t</b> can be used to make
the process type squid_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. squid policy
is extremely flexible and has several booleans that allow
you to manipulate the policy and run squid with the tightest
access possible.</p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether squid should have access to snmp port, you
must turn on the squid_bind_snmp_port boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
squid_bind_snmp_port 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether squid can connect to all TCP ports, you
must turn on the squid_connect_any boolean. Enabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
squid_connect_any 1</b></p>
<p style="margin-left:11%; margin-top: 1em">If you want to
determine whether squid can run as a transparent proxy, you
must turn on the squid_use_tproxy boolean. Disabled by
default.</p>
<p style="margin-left:11%; margin-top: 1em"><b>setsebool -P
squid_use_tproxy 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 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>
<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
squid policy is very flexible allowing users to setup their
squid processes in as secure a method as possible.</p>
<p style="margin-left:11%; margin-top: 1em">The following
port types are defined for squid: <b><br>
squid_port_t</b></p>
<p style="margin-left:11%; margin-top: 1em">Default Defined
Ports:</p>
<p style="margin-left:26%;">tcp 3128,3401,4827 <br>
udp 3401,4827</p>
<h2>MANAGED FILES
<a name="MANAGED FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The SELinux
process type squid_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>faillog_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/log/btmp.*
<br>
/var/log/faillog.* <br>
/var/log/tallylog.* <br>
/var/run/faillock(/.*)?</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>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>squid_cache_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/lib/ssl_db(/.*)?
<br>
/var/lightsquid(/.*)? <br>
/var/squidGuard(/.*)? <br>
/var/cache/squid(/.*)? <br>
/var/spool/squid(/.*)? <br>
/etc/squid/ssl_db(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_log_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/log/squid(/.*)?
<br>
/var/log/squidGuard(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/dev/shm/squid-*</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">/var/run/squid.*</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
squid policy is very flexible allowing users to setup their
squid 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">squid policy
stores data with multiple different file context types under
the /var/log/squid 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/log/squid /srv/squid <br>
restorecon -R -v /srv/squid</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 squid, 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 squid_ra_content_t
’/srv/mysquid_content(/.*)?’ <br>
restorecon -R -v /srv/mysquid_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 squid:</i></p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_cache_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_cache_t type, if you want to store the files
under the /var/cache directory. <br>
Paths:</p>
<p style="margin-left:18%;">/var/lib/ssl_db(/.*)?,
/var/lightsquid(/.*)?, /var/squidGuard(/.*)?,
/var/cache/squid(/.*)?, /var/spool/squid(/.*)?,
/etc/squid/ssl_db(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_conf_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_conf_t type, if you want to treat the files
as squid configuration data, usually stored under the /etc
directory. <br>
Paths:</p>
<p style="margin-left:18%;">/etc/squid(/.*)?,
/etc/lightsquid(/.*)?, /usr/share/squid(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_content_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_content_t type, if you want to treat the
files as squid content.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_cron_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_cron_exec_t type, if you want to transition
an executable to the squid_cron_t domain.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_exec_t type, if you want to transition an
executable to the squid_t domain. <br>
Paths:</p>
<p style="margin-left:18%;">/usr/sbin/squid,
/usr/libexec/squid/cache_swap.sh</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_htaccess_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_htaccess_t type, if you want to treat the
file as a squid access file.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_initrc_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_initrc_exec_t type, if you want to transition
an executable to the squid_initrc_t domain.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_log_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_log_t type, if you want to treat the data as
squid log data, usually stored under the /var/log directory.
<br>
Paths:</p>
<p style="margin-left:18%;">/var/log/squid(/.*)?,
/var/log/squidGuard(/.*)?</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_ra_content_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_ra_content_t type, if you want to treat the
files as squid read/append content.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_rw_content_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_rw_content_t type, if you want to treat the
files as squid read/write content.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_script_exec_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_script_exec_t type, if you want to transition
an executable to the squid_script_t domain. <br>
Paths:</p>
<p style="margin-left:18%;">/usr/share/lightsquid/cgi(/.*)?,
/usr/lib/squid/cachemgr.cgi</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_tmp_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_tmp_t type, if you want to store squid
temporary files in the /tmp directories.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_tmpfs_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_tmpfs_t type, if you want to store squid
files on a tmpfs file system.</p>
<p style="margin-left:11%; margin-top: 1em"><b>squid_var_run_t</b></p>
<p style="margin-left:11%; margin-top: 1em">- Set files
with the squid_var_run_t type, if you want to store the
squid 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
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),
squid(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
setsebool(8), squid_cron_selinux(8),
squid_script_selinux(8)</p>
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