squid_selinux(8)

1squid_selinux(8)             SELinux Policy squid             squid_selinux(8)
2
3
4

NAME

6       squid_selinux - Security Enhanced Linux Policy for the squid processes
7

DESCRIPTION

9       Security-Enhanced Linux secures the squid processes via flexible manda‐
10       tory access control.
11
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.
15
16       For example:
17
18       ps -eZ | grep squid_t
19
20
21

ENTRYPOINTS

23       The squid_t SELinux type can be entered via the squid_exec_t file type.
24
25       The default entrypoint paths for the squid_t domain are the following:
26
27       /usr/sbin/squid, /usr/libexec/squid/cache_swap.sh
28

PROCESS TYPES

30       SELinux defines process types (domains) for each process running on the
31       system
32
33       You can see the context of a process using the -Z option to ps
34
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:
40
41       squid_t, squid_cron_t, squid_script_t
42
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.
47
48

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.
53
54
55
56       If you want to determine whether squid can connect to  all  TCP  ports,
57       you must turn on the squid_connect_any boolean. Disabled by default.
58
59       setsebool -P squid_connect_any 1
60
61
62
63       If  you want to determine whether squid can run as a transparent proxy,
64       you must turn on the squid_use_tproxy boolean. Disabled by default.
65
66       setsebool -P squid_use_tproxy 1
67
68
69
70       If you want to allow all domains to execute in fips_mode, you must turn
71       on the fips_mode boolean. Enabled by default.
72
73       setsebool -P fips_mode 1
74
75
76
77       If  you  want  to allow confined applications to run with kerberos, you
78       must turn on the kerberos_enabled boolean. Disabled by default.
79
80       setsebool -P kerberos_enabled 1
81
82
83

PORT TYPES

85       SELinux defines port types to represent TCP and UDP ports.
86
87       You can see the types associated with a port  by  using  the  following
88       command:
89
90       semanage port -l
91
92
93       Policy  governs  the  access  confined  processes  have to these ports.
94       SELinux squid policy is very flexible allowing  users  to  setup  their
95       squid processes in as secure a method as possible.
96
97       The following port types are defined for squid:
98
99
100       squid_port_t
101
102
103
104       Default Defined Ports:
105                 tcp 3128,3401,4827
106                 udp 3401,4827
107

MANAGED FILES

109       The SELinux process type squid_t can manage files labeled with the fol‐
110       lowing file types.  The paths listed are the default  paths  for  these
111       file types.  Note the processes UID still need to have DAC permissions.
112
113       cluster_conf_t
114
115            /etc/cluster(/.*)?
116
117       cluster_var_lib_t
118
119            /var/lib/pcsd(/.*)?
120            /var/lib/cluster(/.*)?
121            /var/lib/openais(/.*)?
122            /var/lib/pengine(/.*)?
123            /var/lib/corosync(/.*)?
124            /usr/lib/heartbeat(/.*)?
125            /var/lib/heartbeat(/.*)?
126            /var/lib/pacemaker(/.*)?
127
128       cluster_var_run_t
129
130            /var/run/crm(/.*)?
131            /var/run/cman_.*
132            /var/run/rsctmp(/.*)?
133            /var/run/aisexec.*
134            /var/run/heartbeat(/.*)?
135            /var/run/corosync-qnetd(/.*)?
136            /var/run/corosync-qdevice(/.*)?
137            /var/run/corosync.pid
138            /var/run/cpglockd.pid
139            /var/run/rgmanager.pid
140            /var/run/cluster/rgmanager.sk
141
142       faillog_t
143
144            /var/log/btmp.*
145            /var/log/faillog.*
146            /var/log/tallylog.*
147            /var/run/faillock(/.*)?
148
149       root_t
150
151            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
152            /
153            /initrd
154
155       security_t
156
157            /selinux
158
159       squid_cache_t
160
161            /var/lib/ssl_db(/.*)?
162            /var/lightsquid(/.*)?
163            /var/squidGuard(/.*)?
164            /var/cache/squid(/.*)?
165            /var/spool/squid(/.*)?
166            /etc/squid/ssl_db(/.*)?
167
168       squid_log_t
169
170            /var/log/squid(/.*)?
171            /var/log/squidGuard(/.*)?
172
173       squid_tmpfs_t
174
175            /dev/shm/squid-*
176
177       squid_var_run_t
178
179            /var/run/squid.*
180
181

FILE CONTEXTS

183       SELinux requires files to have an extended attribute to define the file
184       type.
185
186       You can see the context of a file using the -Z option to ls
187
188       Policy governs the access  confined  processes  have  to  these  files.
189       SELinux  squid  policy  is  very flexible allowing users to setup their
190       squid processes in as secure a method as possible.
191
192       EQUIVALENCE DIRECTORIES
193
194
195       squid policy stores data with multiple  different  file  context  types
196       under  the  /var/log/squid  directory.   If you would like to store the
197       data in a different directory you can use the semanage command to  cre‐
198       ate an equivalence mapping.  If you wanted to store this data under the
199       /srv directory you would execute the following command:
200
201       semanage fcontext -a -e /var/log/squid /srv/squid
202       restorecon -R -v /srv/squid
203
204       STANDARD FILE CONTEXT
205
206       SELinux defines the file context types for the squid, if you wanted  to
207       store  files  with  these types in a diffent paths, you need to execute
208       the semanage command  to  sepecify  alternate  labeling  and  then  use
209       restorecon to put the labels on disk.
210
211       semanage fcontext -a -t squid_ra_content_t '/srv/mysquid_content(/.*)?'
212       restorecon -R -v /srv/mysquid_content
213
214       Note:  SELinux  often  uses  regular expressions to specify labels that
215       match multiple files.
216
217       The following file types are defined for squid:
218
219
220
221       squid_cache_t
222
223       - Set files with the squid_cache_t type, if you want to store the files
224       under the /var/cache directory.
225
226
227       Paths:
228            /var/lib/ssl_db(/.*)?,      /var/lightsquid(/.*)?,     /var/squid‐
229            Guard(/.*)?,    /var/cache/squid(/.*)?,    /var/spool/squid(/.*)?,
230            /etc/squid/ssl_db(/.*)?
231
232
233       squid_conf_t
234
235       -  Set files with the squid_conf_t type, if you want to treat the files
236       as squid configuration data, usually stored under the /etc directory.
237
238
239       Paths:
240            /etc/squid(/.*)?, /etc/lightsquid(/.*)?, /usr/share/squid(/.*)?
241
242
243       squid_content_t
244
245       - Set files with the squid_content_t type, if you  want  to  treat  the
246       files as squid content.
247
248
249
250       squid_cron_exec_t
251
252       -  Set files with the squid_cron_exec_t type, if you want to transition
253       an executable to the squid_cron_t domain.
254
255
256
257       squid_exec_t
258
259       - Set files with the squid_exec_t type, if you want  to  transition  an
260       executable to the squid_t domain.
261
262
263       Paths:
264            /usr/sbin/squid, /usr/libexec/squid/cache_swap.sh
265
266
267       squid_htaccess_t
268
269       -  Set  files  with the squid_htaccess_t type, if you want to treat the
270       file as a squid access file.
271
272
273
274       squid_initrc_exec_t
275
276       - Set files with the squid_initrc_exec_t type, if you want  to  transi‐
277       tion an executable to the squid_initrc_t domain.
278
279
280
281       squid_log_t
282
283       - Set files with the squid_log_t type, if you want to treat the data as
284       squid log data, usually stored under the /var/log directory.
285
286
287       Paths:
288            /var/log/squid(/.*)?, /var/log/squidGuard(/.*)?
289
290
291       squid_ra_content_t
292
293       - Set files with the squid_ra_content_t type, if you want to treat  the
294       files as squid read/append content.
295
296
297
298       squid_rw_content_t
299
300       -  Set files with the squid_rw_content_t type, if you want to treat the
301       files as squid read/write content.
302
303
304
305       squid_script_exec_t
306
307       - Set files with the squid_script_exec_t type, if you want  to  transi‐
308       tion an executable to the squid_script_t domain.
309
310
311       Paths:
312            /usr/share/lightsquid/cgi(/.*)?, /usr/lib/squid/cachemgr.cgi
313
314
315       squid_tmp_t
316
317       -  Set files with the squid_tmp_t type, if you want to store squid tem‐
318       porary files in the /tmp directories.
319
320
321
322       squid_tmpfs_t
323
324       - Set files with the squid_tmpfs_t type, if you  want  to  store  squid
325       files on a tmpfs file system.
326
327
328
329       squid_var_run_t
330
331       -  Set  files  with  the squid_var_run_t type, if you want to store the
332       squid files under the /run or /var/run directory.
333
334
335
336       Note: File context can be temporarily modified with the chcon  command.
337       If  you want to permanently change the file context you need to use the
338       semanage fcontext command.  This will modify the SELinux labeling data‐
339       base.  You will need to use restorecon to apply the labels.
340
341

COMMANDS

343       semanage  fcontext  can also be used to manipulate default file context
344       mappings.
345
346       semanage permissive can also be used to manipulate  whether  or  not  a
347       process type is permissive.
348
349       semanage  module can also be used to enable/disable/install/remove pol‐
350       icy modules.
351
352       semanage port can also be used to manipulate the port definitions
353
354       semanage boolean can also be used to manipulate the booleans
355
356
357       system-config-selinux is a GUI tool available to customize SELinux pol‐
358       icy settings.
359
360

AUTHOR

362       This manual page was auto-generated using sepolicy manpage .
363
364