iptables_selinux(8)

1iptables_selinux(8)         SELinux Policy iptables        iptables_selinux(8)
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NAME

6       iptables_selinux - Security Enhanced Linux Policy for the iptables pro‐
7       cesses
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DESCRIPTION

10       Security-Enhanced Linux secures the  iptables  processes  via  flexible
11       mandatory access control.
12
13       The  iptables  processes  execute with the iptables_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep iptables_t
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21
22

ENTRYPOINTS

24       The iptables_t SELinux type can be entered via the iptables_exec_t file
25       type.
26
27       The default entrypoint paths for the iptables_t domain are the  follow‐
28       ing:
29
30       /sbin/ip6?tables.*,     /sbin/ip6?tables-multi.*,     /sbin/ip6?tables-
31       restore.*,    /usr/sbin/ip6?tables.*,     /usr/sbin/ip6?tables-multi.*,
32       /usr/sbin/ip6?tables-restore.*, /sbin/ipchains.*, /usr/sbin/ipchains.*,
33       /usr/libexec/iptables/iptables.init,                 /usr/libexec/ipta‐
34       bles/ip6tables.init,     /sbin/nft,     /sbin/ipset,     /sbin/ipvsadm,
35       /usr/sbin/nft,   /sbin/ebtables,   /sbin/arptables,    /usr/sbin/ipset,
36       /usr/sbin/ipvsadm,        /sbin/ipvsadm-save,       /usr/libexec/ipset,
37       /usr/sbin/ebtables,      /sbin/xtables-multi,      /usr/sbin/arptables,
38       /usr/sbin/conntrack,    /sbin/arptables-save,    /sbin/ipvsadm-restore,
39       /sbin/ebtables-restore,    /usr/sbin/ipvsadm-save,     /sbin/arptables-
40       restore,        /sbin/xtables-nft-multi,       /usr/sbin/xtables-multi,
41       /usr/sbin/ipvsadm-restore, /sbin/xtables-legacy-multi,  /usr/sbin/ebta‐
42       bles-restore,   /usr/sbin/xtables-nft-multi,  /usr/sbin/xtables-legacy-
43       multi
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PROCESS TYPES

46       SELinux defines process types (domains) for each process running on the
47       system
48
49       You can see the context of a process using the -Z option to ps
50
51       Policy  governs  the  access confined processes have to files.  SELinux
52       iptables policy is very flexible allowing users to setup their iptables
53       processes in as secure a method as possible.
54
55       The following process types are defined for iptables:
56
57       iptables_t
58
59       Note: semanage permissive -a iptables_t can be used to make the process
60       type iptables_t permissive. SELinux does not deny access to  permissive
61       process  types, but the AVC (SELinux denials) messages are still gener‐
62       ated.
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64

BOOLEANS

66       SELinux policy is customizable based on least access  required.   ipta‐
67       bles  policy  is extremely flexible and has several booleans that allow
68       you to manipulate the policy and run iptables with the tightest  access
69       possible.
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72
73       If you want to allow users to resolve user passwd entries directly from
74       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
75       gin_nsswitch_use_ldap boolean. Disabled by default.
76
77       setsebool -P authlogin_nsswitch_use_ldap 1
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80
81       If you want to allow dhcpc client applications to execute iptables com‐
82       mands, you must turn on the dhcpc_exec_iptables  boolean.  Disabled  by
83       default.
84
85       setsebool -P dhcpc_exec_iptables 1
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88
89       If you want to allow all domains to execute in fips_mode, you must turn
90       on the fips_mode boolean. Enabled by default.
91
92       setsebool -P fips_mode 1
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94
95
96       If you want to allow confined applications to run  with  kerberos,  you
97       must turn on the kerberos_enabled boolean. Disabled by default.
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99       setsebool -P kerberos_enabled 1
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102
103       If  you  want  to  allow  system  to run with NIS, you must turn on the
104       nis_enabled boolean. Disabled by default.
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106       setsebool -P nis_enabled 1
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110       If you want to allow confined applications to use nscd  shared  memory,
111       you must turn on the nscd_use_shm boolean. Disabled by default.
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113       setsebool -P nscd_use_shm 1
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116

MANAGED FILES

118       The  SELinux  process type iptables_t can manage files labeled with the
119       following file types.  The paths listed are the default paths for these
120       file types.  Note the processes UID still need to have DAC permissions.
121
122       etc_runtime_t
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124            /[^/]+
125            /etc/mtab.*
126            /etc/blkid(/.*)?
127            /etc/nologin.*
128            /etc/.fstab.hal..+
129            /halt
130            /fastboot
131            /poweroff
132            /.autofsck
133            /etc/cmtab
134            /forcefsck
135            /.suspended
136            /fsckoptions
137            /.autorelabel
138            /etc/.updated
139            /var/.updated
140            /etc/killpower
141            /etc/nohotplug
142            /etc/securetty
143            /etc/ioctl.save
144            /etc/fstab.REVOKE
145            /etc/network/ifstate
146            /etc/sysconfig/hwconf
147            /etc/ptal/ptal-printd-like
148            /etc/xorg.conf.d/00-system-setup-keyboard.conf
149            /etc/X11/xorg.conf.d/00-system-setup-keyboard.conf
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151       initrc_tmp_t
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154       iptables_lock_t
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156            /var/lock/subsys/iptables
157            /var/lock/subsys/ip6tables
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159       iptables_tmp_t
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162       iptables_var_lib_t
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164            /var/lib/ebtables(/.*)?
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166       iptables_var_run_t
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168            /var/run/xtables.*
169            /var/run/ebtables.*
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171       psad_tmp_t
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174       psad_var_log_t
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176            /var/log/psad(/.*)?
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178       shorewall_var_lib_t
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180            /var/lib/shorewall(/.*)?
181            /var/lib/shorewall6(/.*)?
182            /var/lib/shorewall-lite(/.*)?
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184       system_conf_t
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186            /ostree/repo(/.*)?
187            /etc/yum.repos.d(/.*)?
188            /etc/sysctl.conf(.old)?
189            /etc/sysconfig/ip6?tables.*
190            /etc/sysconfig/ip6?tables.save
191            /etc/ostree/remotes.d(/.*)?
192            /etc/sysconfig/ipvsadm.*
193            /etc/sysconfig/ebtables.*
194            /etc/sysconfig/system-config-firewall.*
195            /ostree/deploy/rhel-atomic-host/deploy(/.*)?
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FILE CONTEXTS

199       SELinux requires files to have an extended attribute to define the file
200       type.
201
202       You can see the context of a file using the -Z option to ls
203
204       Policy governs the access  confined  processes  have  to  these  files.
205       SELinux  iptables policy is very flexible allowing users to setup their
206       iptables processes in as secure a method as possible.
207
208       STANDARD FILE CONTEXT
209
210       SELinux defines the file context types for the iptables, if you  wanted
211       to store files with these types in a diffent paths, you need to execute
212       the semanage command  to  sepecify  alternate  labeling  and  then  use
213       restorecon to put the labels on disk.
214
215       semanage  fcontext  -a  -t  iptables_unit_file_t  '/srv/myiptables_con‐
216       tent(/.*)?'
217       restorecon -R -v /srv/myiptables_content
218
219       Note: SELinux often uses regular expressions  to  specify  labels  that
220       match multiple files.
221
222       The following file types are defined for iptables:
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226       iptables_exec_t
227
228       - Set files with the iptables_exec_t type, if you want to transition an
229       executable to the iptables_t domain.
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231
232       Paths:
233            /sbin/ip6?tables.*,  /sbin/ip6?tables-multi.*,   /sbin/ip6?tables-
234            restore.*,  /usr/sbin/ip6?tables.*,  /usr/sbin/ip6?tables-multi.*,
235            /usr/sbin/ip6?tables-restore.*,                  /sbin/ipchains.*,
236            /usr/sbin/ipchains.*,         /usr/libexec/iptables/iptables.init,
237            /usr/libexec/iptables/ip6tables.init,   /sbin/nft,    /sbin/ipset,
238            /sbin/ipvsadm,   /usr/sbin/nft,  /sbin/ebtables,  /sbin/arptables,
239            /usr/sbin/ipset,      /usr/sbin/ipvsadm,       /sbin/ipvsadm-save,
240            /usr/libexec/ipset,    /usr/sbin/ebtables,    /sbin/xtables-multi,
241            /usr/sbin/arptables,  /usr/sbin/conntrack,   /sbin/arptables-save,
242            /sbin/ipvsadm-restore,  /sbin/ebtables-restore, /usr/sbin/ipvsadm-
243            save,      /sbin/arptables-restore,       /sbin/xtables-nft-multi,
244            /usr/sbin/xtables-multi, /usr/sbin/ipvsadm-restore, /sbin/xtables-
245            legacy-multi,  /usr/sbin/ebtables-restore,  /usr/sbin/xtables-nft-
246            multi, /usr/sbin/xtables-legacy-multi
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248
249       iptables_initrc_exec_t
250
251       -  Set files with the iptables_initrc_exec_t type, if you want to tran‐
252       sition an executable to the iptables_initrc_t domain.
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254
255       Paths:
256            /etc/rc.d/init.d/ip6?tables,            /etc/rc.d/init.d/ebtables,
257            /etc/rc.d/init.d/nftables
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259
260       iptables_lock_t
261
262       -  Set  files  with  the iptables_lock_t type, if you want to treat the
263       files as iptables lock data, stored under the /var/lock directory
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265
266       Paths:
267            /var/lock/subsys/iptables, /var/lock/subsys/ip6tables
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269
270       iptables_tmp_t
271
272       - Set files with the iptables_tmp_t type, if you want to store iptables
273       temporary files in the /tmp directories.
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277       iptables_unit_file_t
278
279       -  Set  files  with the iptables_unit_file_t type, if you want to treat
280       the files as iptables unit content.
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282
283       Paths:
284            /usr/lib/systemd/system/ppp.*,    /usr/lib/systemd/system/ipset.*,
285            /usr/lib/systemd/system/vsftpd.*,            /usr/lib/systemd/sys‐
286            tem/proftpd.*,  /usr/lib/systemd/system/iptables.*,  /usr/lib/sys‐
287            temd/system/arptables.*, /usr/lib/systemd/system/ip6tables.*
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289
290       iptables_var_lib_t
291
292       -  Set files with the iptables_var_lib_t type, if you want to store the
293       iptables files under the /var/lib directory.
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297       iptables_var_run_t
298
299       - Set files with the iptables_var_run_t type, if you want to store  the
300       iptables files under the /run or /var/run directory.
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302
303       Paths:
304            /var/run/xtables.*, /var/run/ebtables.*
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306
307       Note:  File context can be temporarily modified with the chcon command.
308       If you want to permanently change the file context you need to use  the
309       semanage fcontext command.  This will modify the SELinux labeling data‐
310       base.  You will need to use restorecon to apply the labels.
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COMMANDS

314       semanage fcontext can also be used to manipulate default  file  context
315       mappings.
316
317       semanage  permissive  can  also  be used to manipulate whether or not a
318       process type is permissive.
319
320       semanage module can also be used to enable/disable/install/remove  pol‐
321       icy modules.
322
323       semanage boolean can also be used to manipulate the booleans
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325
326       system-config-selinux is a GUI tool available to customize SELinux pol‐
327       icy settings.
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AUTHOR

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