squid_selinux(8)

1squid_selinux(8)             SELinux Policy squid             squid_selinux(8)
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NAME

6       squid_selinux - Security Enhanced Linux Policy for the squid processes
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DESCRIPTION

9       Security-Enhanced Linux secures the squid processes via flexible manda‐
10       tory access control.
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12       The squid processes execute with the  squid_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
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16       For example:
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18       ps -eZ | grep squid_t
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ENTRYPOINTS

23       The squid_t SELinux type can be entered via the squid_exec_t file type.
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25       The default entrypoint paths for the squid_t domain are the following:
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27       /usr/sbin/squid, /usr/libexec/squid/cache_swap.sh
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PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
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33       You can see the context of a process using the -Z option to ps
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35       Policy  governs  the  access confined processes have to files.  SELinux
36       squid policy is very flexible allowing users to setup their squid  pro‐
37       cesses in as secure a method as possible.
38
39       The following process types are defined for squid:
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41       squid_t, squid_cron_t, squid_script_t
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43       Note:  semanage  permissive  -a squid_t can be used to make the process
44       type squid_t permissive. SELinux does not  deny  access  to  permissive
45       process  types, but the AVC (SELinux denials) messages are still gener‐
46       ated.
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BOOLEANS

50       SELinux policy is customizable based on least access  required.   squid
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run squid with the tightest access possible.
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55
56       If you want to determine whether squid should have access to snmp port,
57       you must turn on the squid_bind_snmp_port boolean. Disabled by default.
58
59       setsebool -P squid_bind_snmp_port 1
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63       If  you  want  to determine whether squid can connect to all TCP ports,
64       you must turn on the squid_connect_any boolean. Enabled by default.
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66       setsebool -P squid_connect_any 1
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70       If you want to determine whether squid can run as a transparent  proxy,
71       you must turn on the squid_use_tproxy boolean. Disabled by default.
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73       setsebool -P squid_use_tproxy 1
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76
77       If  you  want  to  dontaudit all daemons scheduling requests (setsched,
78       sys_nice), you must turn on the  daemons_dontaudit_scheduling  boolean.
79       Enabled by default.
80
81       setsebool -P daemons_dontaudit_scheduling 1
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85       If you want to allow all domains to execute in fips_mode, you must turn
86       on the fips_mode boolean. Enabled by default.
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88       setsebool -P fips_mode 1
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92       If you want to allow confined applications to run  with  kerberos,  you
93       must turn on the kerberos_enabled boolean. Enabled by default.
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95       setsebool -P kerberos_enabled 1
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99       If  you  want  to  allow  system  to run with NIS, you must turn on the
100       nis_enabled boolean. Disabled by default.
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102       setsebool -P nis_enabled 1
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PORT TYPES

107       SELinux defines port types to represent TCP and UDP ports.
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109       You can see the types associated with a port  by  using  the  following
110       command:
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112       semanage port -l
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114
115       Policy  governs  the  access  confined  processes  have to these ports.
116       SELinux squid policy is very flexible allowing  users  to  setup  their
117       squid processes in as secure a method as possible.
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119       The following port types are defined for squid:
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121
122       squid_port_t
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126       Default Defined Ports:
127                 tcp 3128,3401,4827
128                 udp 3401,4827
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MANAGED FILES

131       The SELinux process type squid_t can manage files labeled with the fol‐
132       lowing file types.  The paths listed are the default  paths  for  these
133       file types.  Note the processes UID still need to have DAC permissions.
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135       cluster_conf_t
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137            /etc/cluster(/.*)?
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139       cluster_var_lib_t
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141            /var/lib/pcsd(/.*)?
142            /var/lib/cluster(/.*)?
143            /var/lib/openais(/.*)?
144            /var/lib/pengine(/.*)?
145            /var/lib/corosync(/.*)?
146            /usr/lib/heartbeat(/.*)?
147            /var/lib/heartbeat(/.*)?
148            /var/lib/pacemaker(/.*)?
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150       cluster_var_run_t
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152            /var/run/crm(/.*)?
153            /var/run/cman_.*
154            /var/run/rsctmp(/.*)?
155            /var/run/aisexec.*
156            /var/run/heartbeat(/.*)?
157            /var/run/pcsd-ruby.socket
158            /var/run/corosync-qnetd(/.*)?
159            /var/run/corosync-qdevice(/.*)?
160            /var/run/corosync.pid
161            /var/run/cpglockd.pid
162            /var/run/rgmanager.pid
163            /var/run/cluster/rgmanager.sk
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165       faillog_t
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167            /var/log/btmp.*
168            /var/log/faillog.*
169            /var/log/tallylog.*
170            /var/run/faillock(/.*)?
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172       krb5_host_rcache_t
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174            /var/tmp/krb5_0.rcache2
175            /var/cache/krb5rcache(/.*)?
176            /var/tmp/nfs_0
177            /var/tmp/DNS_25
178            /var/tmp/host_0
179            /var/tmp/imap_0
180            /var/tmp/HTTP_23
181            /var/tmp/HTTP_48
182            /var/tmp/ldap_55
183            /var/tmp/ldap_487
184            /var/tmp/ldapmap1_0
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186       root_t
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188            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
189            /
190            /initrd
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192       security_t
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194            /selinux
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196       squid_cache_t
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198            /var/lib/ssl_db(/.*)?
199            /var/lightsquid(/.*)?
200            /var/squidGuard(/.*)?
201            /var/cache/squid(/.*)?
202            /var/spool/squid(/.*)?
203            /etc/squid/ssl_db(/.*)?
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205       squid_log_t
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207            /var/log/squid(/.*)?
208            /var/log/squidGuard(/.*)?
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210       squid_tmp_t
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213       squid_tmpfs_t
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215            /dev/shm/squid-*
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217       squid_var_run_t
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219            /var/run/squid.*
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FILE CONTEXTS

223       SELinux requires files to have an extended attribute to define the file
224       type.
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226       You can see the context of a file using the -Z option to ls
227
228       Policy governs the access  confined  processes  have  to  these  files.
229       SELinux  squid  policy  is  very flexible allowing users to setup their
230       squid processes in as secure a method as possible.
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232       EQUIVALENCE DIRECTORIES
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234
235       squid policy stores data with multiple different file context types un‐
236       der  the /var/log/squid directory.  If you would like to store the data
237       in a different directory you can use the semanage command to create  an
238       equivalence  mapping.   If you wanted to store this data under the /srv
239       directory you would execute the following command:
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241       semanage fcontext -a -e /var/log/squid /srv/squid
242       restorecon -R -v /srv/squid
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244       STANDARD FILE CONTEXT
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246       SELinux defines the file context types for the squid, if you wanted  to
247       store  files with these types in a different paths, you need to execute
248       the semanage command to specify alternate labeling  and  then  use  re‐
249       storecon to put the labels on disk.
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251       semanage fcontext -a -t squid_exec_t '/srv/squid/content(/.*)?'
252       restorecon -R -v /srv/mysquid_content
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254       Note:  SELinux  often  uses  regular expressions to specify labels that
255       match multiple files.
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257       The following file types are defined for squid:
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261       squid_cache_t
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263       - Set files with the squid_cache_t type, if you want to store the files
264       under the /var/cache directory.
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267       Paths:
268            /var/lib/ssl_db(/.*)?,      /var/lightsquid(/.*)?,     /var/squid‐
269            Guard(/.*)?,    /var/cache/squid(/.*)?,    /var/spool/squid(/.*)?,
270            /etc/squid/ssl_db(/.*)?
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273       squid_conf_t
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275       -  Set files with the squid_conf_t type, if you want to treat the files
276       as squid configuration data, usually stored under the /etc directory.
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279       Paths:
280            /etc/squid(/.*)?, /etc/lightsquid(/.*)?, /usr/share/squid(/.*)?
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283       squid_content_t
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285       - Set files with the squid_content_t type, if you  want  to  treat  the
286       files as squid content.
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290       squid_cron_exec_t
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292       -  Set files with the squid_cron_exec_t type, if you want to transition
293       an executable to the squid_cron_t domain.
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297       squid_exec_t
298
299       - Set files with the squid_exec_t type, if you want  to  transition  an
300       executable to the squid_t domain.
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302
303       Paths:
304            /usr/sbin/squid, /usr/libexec/squid/cache_swap.sh
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307       squid_htaccess_t
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309       -  Set  files  with the squid_htaccess_t type, if you want to treat the
310       file as a squid access file.
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313
314       squid_initrc_exec_t
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316       - Set files with the squid_initrc_exec_t type, if you want  to  transi‐
317       tion an executable to the squid_initrc_t domain.
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321       squid_log_t
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323       - Set files with the squid_log_t type, if you want to treat the data as
324       squid log data, usually stored under the /var/log directory.
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326
327       Paths:
328            /var/log/squid(/.*)?, /var/log/squidGuard(/.*)?
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330
331       squid_ra_content_t
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333       - Set files with the squid_ra_content_t type, if you want to treat  the
334       files as squid read/append content.
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337
338       squid_rw_content_t
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340       -  Set files with the squid_rw_content_t type, if you want to treat the
341       files as squid read/write content.
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345       squid_script_exec_t
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347       - Set files with the squid_script_exec_t type, if you want  to  transi‐
348       tion an executable to the squid_script_t domain.
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351       Paths:
352            /usr/share/lightsquid/cgi(/.*)?, /usr/lib/squid/cachemgr.cgi
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355       squid_tmp_t
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357       -  Set files with the squid_tmp_t type, if you want to store squid tem‐
358       porary files in the /tmp directories.
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362       squid_tmpfs_t
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364       - Set files with the squid_tmpfs_t type, if you  want  to  store  squid
365       files on a tmpfs file system.
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369       squid_var_run_t
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371       -  Set  files  with  the squid_var_run_t type, if you want to store the
372       squid files under the /run or /var/run directory.
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375
376       Note: File context can be temporarily modified with the chcon  command.
377       If  you want to permanently change the file context you need to use the
378       semanage fcontext command.  This will modify the SELinux labeling data‐
379       base.  You will need to use restorecon to apply the labels.
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COMMANDS

383       semanage  fcontext  can also be used to manipulate default file context
384       mappings.
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386       semanage permissive can also be used to manipulate  whether  or  not  a
387       process type is permissive.
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389       semanage  module can also be used to enable/disable/install/remove pol‐
390       icy modules.
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392       semanage port can also be used to manipulate the port definitions
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394       semanage boolean can also be used to manipulate the booleans
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396
397       system-config-selinux is a GUI tool available to customize SELinux pol‐
398       icy settings.
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AUTHOR

402       This manual page was auto-generated using sepolicy manpage .
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