1inetd_child_selinux(8)    SELinux Policy inetd_child    inetd_child_selinux(8)
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NAME

6       inetd_child_selinux   -   Security   Enhanced   Linux  Policy  for  the
7       inetd_child processes
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DESCRIPTION

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

24       The    inetd_child_t    SELinux   type   can   be   entered   via   the
25       inetd_child_exec_t, bin_t, usr_t file types.
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27       The default entrypoint paths for the inetd_child_t domain are the  fol‐
28       lowing:
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30       All  executeables  with the default executable label, usually stored in
31       /usr/bin          and           /usr/sbin.            /usr/sbin/in..*d,
32       /usr/lib/pysieved/pysieved.*.py, /usr/local/lib/pysieved/pysieved.*.py,
33       /usr/sbin/identd,   /opt/.*,    /usr/.*,    /emul/.*,    /export(/.*)?,
34       /ostree(/.*)?,       /usr/doc(/.*)?/lib(/.*)?,      /usr/inclu.e(/.*)?,
35       /usr/share/rpm(/.*)?,   /usr/share/doc(/.*)?/README.*,    /usr/lib/mod‐
36       ules(/.*)/vmlinuz, /usr/lib/modules(/.*)/initramfs.img, /usr/lib/sysim‐
37       age(/.*)?, /usr/lib/ostree-boot(/.*)?, /opt, /usr, /emul
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PROCESS TYPES

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

60       SELinux  policy  is  customizable  based  on  least  access   required.
61       inetd_child  policy is extremely flexible and has several booleans that
62       allow you to manipulate the policy and run inetd_child with the  tight‐
63       est access possible.
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67       If you want to allow users to resolve user passwd entries directly from
68       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
69       gin_nsswitch_use_ldap boolean. Disabled by default.
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71       setsebool -P authlogin_nsswitch_use_ldap 1
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75       If you want to deny user domains applications to map a memory region as
76       both executable and writable, this  is  dangerous  and  the  executable
77       should be reported in bugzilla, you must turn on the deny_execmem bool‐
78       ean. Enabled by default.
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80       setsebool -P deny_execmem 1
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84       If you want to allow all domains to execute in fips_mode, you must turn
85       on the fips_mode boolean. Enabled by default.
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87       setsebool -P fips_mode 1
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91       If  you  want  to allow confined applications to run with kerberos, you
92       must turn on the kerberos_enabled boolean. Enabled by default.
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94       setsebool -P kerberos_enabled 1
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98       If you want to control the ability to mmap a low area  of  the  address
99       space,  as  configured  by /proc/sys/vm/mmap_min_addr, you must turn on
100       the mmap_low_allowed boolean. Disabled by default.
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102       setsebool -P mmap_low_allowed 1
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106       If you want to allow system to run with  NIS,  you  must  turn  on  the
107       nis_enabled boolean. Disabled by default.
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109       setsebool -P nis_enabled 1
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113       If  you  want to allow confined applications to use nscd shared memory,
114       you must turn on the nscd_use_shm boolean. Disabled by default.
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116       setsebool -P nscd_use_shm 1
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120       If you want to disable kernel module loading,  you  must  turn  on  the
121       secure_mode_insmod boolean. Enabled by default.
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123       setsebool -P secure_mode_insmod 1
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127       If  you  want to allow unconfined executables to make their heap memory
128       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
129       badly  coded  executable, but could indicate an attack. This executable
130       should  be  reported  in  bugzilla,  you  must  turn  on   the   selin‐
131       uxuser_execheap boolean. Disabled by default.
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133       setsebool -P selinuxuser_execheap 1
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137       If  you  want  to allow unconfined executables to make their stack exe‐
138       cutable.  This should never, ever be necessary.  Probably  indicates  a
139       badly  coded  executable, but could indicate an attack. This executable
140       should be reported in bugzilla, you must turn on the  selinuxuser_exec‐
141       stack boolean. Enabled by default.
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143       setsebool -P selinuxuser_execstack 1
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PORT TYPES

148       SELinux defines port types to represent TCP and UDP ports.
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150       You  can  see  the  types associated with a port by using the following
151       command:
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153       semanage port -l
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156       Policy governs the access  confined  processes  have  to  these  ports.
157       SELinux  inetd_child  policy  is  very flexible allowing users to setup
158       their inetd_child processes in as secure a method as possible.
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160       The following port types are defined for inetd_child:
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163       inetd_child_port_t
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167       Default Defined Ports:
168                 tcp 1,9,13,19,512,544,891,892,5666
169                 udp 1,9,13,19,891,892
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MANAGED FILES

172       The SELinux process type inetd_child_t can manage  files  labeled  with
173       the  following  file types.  The paths listed are the default paths for
174       these file types.  Note the processes UID still need to have  DAC  per‐
175       missions.
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177       file_type
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179            all files on the system
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FILE CONTEXTS

183       SELinux requires files to have an extended attribute to define the file
184       type.
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186       You can see the context of a file using the -Z option to ls
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188       Policy governs the access  confined  processes  have  to  these  files.
189       SELinux  inetd_child  policy  is  very flexible allowing users to setup
190       their inetd_child processes in as secure a method as possible.
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192       STANDARD FILE CONTEXT
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194       SELinux defines the file context types  for  the  inetd_child,  if  you
195       wanted  to store files with these types in a diffent paths, you need to
196       execute the semanage command to sepecify alternate  labeling  and  then
197       use restorecon to put the labels on disk.
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199       semanage  fcontext -a -t inetd_child_var_run_t '/srv/myinetd_child_con‐
200       tent(/.*)?'
201       restorecon -R -v /srv/myinetd_child_content
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203       Note: SELinux often uses regular expressions  to  specify  labels  that
204       match multiple files.
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206       The following file types are defined for inetd_child:
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210       inetd_child_exec_t
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212       - Set files with the inetd_child_exec_t type, if you want to transition
213       an executable to the inetd_child_t domain.
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216       Paths:
217            /usr/sbin/in..*d,                 /usr/lib/pysieved/pysieved.*.py,
218            /usr/local/lib/pysieved/pysieved.*.py, /usr/sbin/identd
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221       inetd_child_tmp_t
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223       - Set files with the inetd_child_tmp_t type, if you want to store inetd
224       child temporary files in the /tmp directories.
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228       inetd_child_var_run_t
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230       - Set files with the inetd_child_var_run_t type, if you want  to  store
231       the inetd child files under the /run or /var/run directory.
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235       Note:  File context can be temporarily modified with the chcon command.
236       If you want to permanently change the file context you need to use  the
237       semanage fcontext command.  This will modify the SELinux labeling data‐
238       base.  You will need to use restorecon to apply the labels.
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COMMANDS

242       semanage fcontext can also be used to manipulate default  file  context
243       mappings.
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245       semanage  permissive  can  also  be used to manipulate whether or not a
246       process type is permissive.
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248       semanage module can also be used to enable/disable/install/remove  pol‐
249       icy modules.
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251       semanage port can also be used to manipulate the port definitions
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253       semanage boolean can also be used to manipulate the booleans
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256       system-config-selinux is a GUI tool available to customize SELinux pol‐
257       icy settings.
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AUTHOR

261       This manual page was auto-generated using sepolicy manpage .
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SEE ALSO

265       selinux(8),  inetd_child(8),  semanage(8),   restorecon(8),   chcon(1),
266       sepolicy(8), setsebool(8)
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270inetd_child                        19-06-18             inetd_child_selinux(8)
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