httpd_suexec_selinux(8)

1httpd_suexec_selinux(8)   SELinux Policy httpd_suexec  httpd_suexec_selinux(8)
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NAME

6       httpd_suexec_selinux   -   Security   Enhanced  Linux  Policy  for  the
7       httpd_suexec processes
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DESCRIPTION

10       Security-Enhanced Linux secures the httpd_suexec processes via flexible
11       mandatory access control.
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13       The  httpd_suexec  processes  execute  with  the httpd_suexec_t SELinux
14       type. You can check if you have these processes  running  by  executing
15       the ps command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep httpd_suexec_t
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ENTRYPOINTS

24       The    httpd_suexec_t   SELinux   type   can   be   entered   via   the
25       httpd_suexec_exec_t file type.
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27       The default entrypoint paths for the httpd_suexec_t domain are the fol‐
28       lowing:
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30       /usr/lib/apache(2)?/suexec(2)?,    /usr/lib/cgi-bin/(nph-)?cgiwrap(d)?,
31       /usr/sbin/suexec
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PROCESS TYPES

34       SELinux defines process types (domains) for each process running on the
35       system
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37       You can see the context of a process using the -Z option to ps
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39       Policy  governs  the  access confined processes have to files.  SELinux
40       httpd_suexec policy is very flexible  allowing  users  to  setup  their
41       httpd_suexec processes in as secure a method as possible.
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43       The following process types are defined for httpd_suexec:
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45       httpd_suexec_t
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47       Note:  semanage  permissive  -a  httpd_suexec_t can be used to make the
48       process type httpd_suexec_t permissive. SELinux does not deny access to
49       permissive  process  types,  but the AVC (SELinux denials) messages are
50       still generated.
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BOOLEANS

54       SELinux  policy  is  customizable  based  on  least  access   required.
55       httpd_suexec policy is extremely flexible and has several booleans that
56       allow you to manipulate the policy and run httpd_suexec with the tight‐
57       est access possible.
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61       If you want to allow all domains to execute in fips_mode, you must turn
62       on the fips_mode boolean. Enabled by default.
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64       setsebool -P fips_mode 1
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68       If you want to allow httpd to use built in scripting (usually php), you
69       must turn on the httpd_builtin_scripting boolean. Enabled by default.
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71       setsebool -P httpd_builtin_scripting 1
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75       If  you  want to allow HTTPD scripts and modules to connect to the net‐
76       work using TCP, you must turn on the httpd_can_network_connect boolean.
77       Disabled by default.
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79       setsebool -P httpd_can_network_connect 1
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83       If  you want to allow HTTPD scripts and modules to connect to databases
84       over the network, you must  turn  on  the  httpd_can_network_connect_db
85       boolean. Disabled by default.
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87       setsebool -P httpd_can_network_connect_db 1
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91       If  you  want  to  allow http daemon to send mail, you must turn on the
92       httpd_can_sendmail boolean. Disabled by default.
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94       setsebool -P httpd_can_sendmail 1
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98       If you want to allow httpd cgi support, you must turn on the  httpd_en‐
99       able_cgi boolean. Enabled by default.
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101       setsebool -P httpd_enable_cgi 1
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105       If  you  want to allow httpd to read home directories, you must turn on
106       the httpd_enable_homedirs boolean. Disabled by default.
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108       setsebool -P httpd_enable_homedirs 1
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112       If you want to allow httpd scripts and modules  execmem/execstack,  you
113       must turn on the httpd_execmem boolean. Disabled by default.
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115       setsebool -P httpd_execmem 1
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119       If  you  want to allow httpd to read user content, you must turn on the
120       httpd_read_user_content boolean. Disabled by default.
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122       setsebool -P httpd_read_user_content 1
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126       If you want to unify HTTPD to communicate with the terminal. Needed for
127       entering the passphrase for certificates at the terminal, you must turn
128       on the httpd_tty_comm boolean. Disabled by default.
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130       setsebool -P httpd_tty_comm 1
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134       If you want to allow httpd to access cifs file systems, you  must  turn
135       on the httpd_use_cifs boolean. Disabled by default.
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137       setsebool -P httpd_use_cifs 1
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141       If  you  want to allow httpd to access FUSE file systems, you must turn
142       on the httpd_use_fusefs boolean. Disabled by default.
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144       setsebool -P httpd_use_fusefs 1
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148       If you want to allow httpd to access nfs file systems, you must turn on
149       the httpd_use_nfs boolean. Disabled by default.
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151       setsebool -P httpd_use_nfs 1
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155       If  you  want  to  allow  system  to run with NIS, you must turn on the
156       nis_enabled boolean. Disabled by default.
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158       setsebool -P nis_enabled 1
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MANAGED FILES

163       The SELinux process type httpd_suexec_t can manage files  labeled  with
164       the  following  file types.  The paths listed are the default paths for
165       these file types.  Note the processes UID still need to have  DAC  per‐
166       missions.
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168       cifs_t
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171       fusefs_t
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173            /var/run/user/[^/]*/gvfs
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175       httpd_suexec_tmp_t
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178       krb5_host_rcache_t
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180            /var/tmp/krb5_0.rcache2
181            /var/cache/krb5rcache(/.*)?
182            /var/tmp/nfs_0
183            /var/tmp/DNS_25
184            /var/tmp/host_0
185            /var/tmp/imap_0
186            /var/tmp/HTTP_23
187            /var/tmp/HTTP_48
188            /var/tmp/ldap_55
189            /var/tmp/ldap_487
190            /var/tmp/ldapmap1_0
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192       nfs_t
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FILE CONTEXTS

197       SELinux requires files to have an extended attribute to define the file
198       type.
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200       You can see the context of a file using the -Z option to ls
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202       Policy governs the access  confined  processes  have  to  these  files.
203       SELinux  httpd_suexec  policy  is very flexible allowing users to setup
204       their httpd_suexec processes in as secure a method as possible.
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206       STANDARD FILE CONTEXT
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208       SELinux defines the file context types for  the  httpd_suexec,  if  you
209       wanted  to store files with these types in a diffent paths, you need to
210       execute the semanage command to specify alternate labeling and then use
211       restorecon to put the labels on disk.
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213       semanage  fcontext  -a  -t httpd_suexec_tmp_t '/srv/myhttpd_suexec_con‐
214       tent(/.*)?'
215       restorecon -R -v /srv/myhttpd_suexec_content
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217       Note: SELinux often uses regular expressions  to  specify  labels  that
218       match multiple files.
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220       The following file types are defined for httpd_suexec:
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224       httpd_suexec_exec_t
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226       -  Set  files with the httpd_suexec_exec_t type, if you want to transi‐
227       tion an executable to the httpd_suexec_t domain.
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230       Paths:
231            /usr/lib/apache(2)?/suexec(2)?,       /usr/lib/cgi-bin/(nph-)?cgi‐
232            wrap(d)?, /usr/sbin/suexec
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235       httpd_suexec_tmp_t
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237       -  Set  files  with  the  httpd_suexec_tmp_t type, if you want to store
238       httpd suexec temporary files in the /tmp directories.
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242       Note: File context can be temporarily modified with the chcon  command.
243       If  you want to permanently change the file context you need to use the
244       semanage fcontext command.  This will modify the SELinux labeling data‐
245       base.  You will need to use restorecon to apply the labels.
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COMMANDS

249       semanage  fcontext  can also be used to manipulate default file context
250       mappings.
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252       semanage permissive can also be used to manipulate  whether  or  not  a
253       process type is permissive.
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255       semanage  module can also be used to enable/disable/install/remove pol‐
256       icy modules.
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258       semanage boolean can also be used to manipulate the booleans
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261       system-config-selinux is a GUI tool available to customize SELinux pol‐
262       icy settings.
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AUTHOR

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