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.
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17       For example:
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19       ps -eZ | grep iptables_t
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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:
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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
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49       You can see the context of a process using the -Z option to ps
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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.
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55       The following process types are defined for iptables:
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57       iptables_t
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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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73       If you want to allow dhcpc client applications to execute iptables com‐
74       mands, you must turn on the dhcpc_exec_iptables  boolean.  Disabled  by
75       default.
76
77       setsebool -P dhcpc_exec_iptables 1
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81       If you want to allow all domains to execute in fips_mode, you must turn
82       on the fips_mode boolean. Enabled by default.
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84       setsebool -P fips_mode 1
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88       If you want to allow system to run with  NIS,  you  must  turn  on  the
89       nis_enabled boolean. Disabled by default.
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91       setsebool -P nis_enabled 1
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MANAGED FILES

96       The  SELinux  process type iptables_t can manage files labeled with the
97       following file types.  The paths listed are the default paths for these
98       file types.  Note the processes UID still need to have DAC permissions.
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100       iptables_lock_t
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102            /var/lock/subsys/iptables
103            /var/lock/subsys/ip6tables
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105       iptables_var_lib_t
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107            /var/lib/ebtables(/.*)?
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109       iptables_var_run_t
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111            /var/run/xtables.*
112            /var/run/ebtables.*
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114       psad_var_log_t
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116            /var/log/psad(/.*)?
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118       shorewall_var_lib_t
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120            /var/lib/shorewall(/.*)?
121            /var/lib/shorewall6(/.*)?
122            /var/lib/shorewall-lite(/.*)?
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FILE CONTEXTS

126       SELinux requires files to have an extended attribute to define the file
127       type.
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129       You can see the context of a file using the -Z option to ls
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131       Policy governs the access  confined  processes  have  to  these  files.
132       SELinux  iptables policy is very flexible allowing users to setup their
133       iptables processes in as secure a method as possible.
134
135       STANDARD FILE CONTEXT
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137       SELinux defines the file context types for the iptables, if you  wanted
138       to store files with these types in a diffent paths, you need to execute
139       the semanage command  to  sepecify  alternate  labeling  and  then  use
140       restorecon to put the labels on disk.
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142       semanage  fcontext  -a  -t  iptables_unit_file_t  '/srv/myiptables_con‐
143       tent(/.*)?'
144       restorecon -R -v /srv/myiptables_content
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146       Note: SELinux often uses regular expressions  to  specify  labels  that
147       match multiple files.
148
149       The following file types are defined for iptables:
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153       iptables_exec_t
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155       - Set files with the iptables_exec_t type, if you want to transition an
156       executable to the iptables_t domain.
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159       Paths:
160            /sbin/ip6?tables.*,  /sbin/ip6?tables-multi.*,   /sbin/ip6?tables-
161            restore.*,  /usr/sbin/ip6?tables.*,  /usr/sbin/ip6?tables-multi.*,
162            /usr/sbin/ip6?tables-restore.*,                  /sbin/ipchains.*,
163            /usr/sbin/ipchains.*,         /usr/libexec/iptables/iptables.init,
164            /usr/libexec/iptables/ip6tables.init,   /sbin/nft,    /sbin/ipset,
165            /sbin/ipvsadm,   /usr/sbin/nft,  /sbin/ebtables,  /sbin/arptables,
166            /usr/sbin/ipset,      /usr/sbin/ipvsadm,       /sbin/ipvsadm-save,
167            /usr/libexec/ipset,    /usr/sbin/ebtables,    /sbin/xtables-multi,
168            /usr/sbin/arptables,  /usr/sbin/conntrack,   /sbin/arptables-save,
169            /sbin/ipvsadm-restore,  /sbin/ebtables-restore, /usr/sbin/ipvsadm-
170            save,      /sbin/arptables-restore,       /sbin/xtables-nft-multi,
171            /usr/sbin/xtables-multi, /usr/sbin/ipvsadm-restore, /sbin/xtables-
172            legacy-multi,  /usr/sbin/ebtables-restore,  /usr/sbin/xtables-nft-
173            multi, /usr/sbin/xtables-legacy-multi
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176       iptables_initrc_exec_t
177
178       -  Set files with the iptables_initrc_exec_t type, if you want to tran‐
179       sition an executable to the iptables_initrc_t domain.
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182       Paths:
183            /etc/rc.d/init.d/ip6?tables,            /etc/rc.d/init.d/ebtables,
184            /etc/rc.d/init.d/nftables
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187       iptables_lock_t
188
189       -  Set  files  with  the iptables_lock_t type, if you want to treat the
190       files as iptables lock data, stored under the /var/lock directory
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193       Paths:
194            /var/lock/subsys/iptables, /var/lock/subsys/ip6tables
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197       iptables_tmp_t
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199       - Set files with the iptables_tmp_t type, if you want to store iptables
200       temporary files in the /tmp directories.
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204       iptables_unit_file_t
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206       -  Set  files  with the iptables_unit_file_t type, if you want to treat
207       the files as iptables unit content.
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210       Paths:
211            /usr/lib/systemd/system/ppp.*,    /usr/lib/systemd/system/ipset.*,
212            /usr/lib/systemd/system/vsftpd.*,            /usr/lib/systemd/sys‐
213            tem/proftpd.*,  /usr/lib/systemd/system/iptables.*,  /usr/lib/sys‐
214            temd/system/arptables.*, /usr/lib/systemd/system/ip6tables.*
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217       iptables_var_lib_t
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219       -  Set files with the iptables_var_lib_t type, if you want to store the
220       iptables files under the /var/lib directory.
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224       iptables_var_run_t
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226       - Set files with the iptables_var_run_t type, if you want to store  the
227       iptables files under the /run or /var/run directory.
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230       Paths:
231            /var/run/xtables.*, /var/run/ebtables.*
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234       Note:  File context can be temporarily modified with the chcon command.
235       If you want to permanently change the file context you need to use  the
236       semanage fcontext command.  This will modify the SELinux labeling data‐
237       base.  You will need to use restorecon to apply the labels.
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COMMANDS

241       semanage fcontext can also be used to manipulate default  file  context
242       mappings.
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244       semanage  permissive  can  also  be used to manipulate whether or not a
245       process type is permissive.
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247       semanage module can also be used to enable/disable/install/remove  pol‐
248       icy modules.
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250       semanage boolean can also be used to manipulate the booleans
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253       system-config-selinux is a GUI tool available to customize SELinux pol‐
254       icy settings.
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AUTHOR

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