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       /usr/sbin/ip6?tables.*,     /usr/sbin/ipchains.*,    /usr/libexec/ipta‐
31       bles/iptables.init,               /usr/libexec/iptables/ip6tables.init,
32       /usr/sbin/nft,  /usr/sbin/ipset, /usr/sbin/ipvsadm, /usr/libexec/ipset,
33       /usr/sbin/ebtables,      /usr/sbin/arptables,      /usr/sbin/conntrack,
34       /usr/sbin/ipvsadm-save,  /usr/sbin/xtables-multi,  /usr/sbin/arptables-
35       save,       /usr/sbin/ebtables-legacy,       /usr/sbin/ipvsadm-restore,
36       /usr/sbin/arptables-legacy, /usr/sbin/ebtables-restore, /usr/sbin/arpt‐
37       ables-restore,  /usr/sbin/xtables-nft-multi,  /usr/sbin/xtables-legacy-
38       multi
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PROCESS TYPES

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

61       SELinux  policy  is customizable based on least access required.  ipta‐
62       bles policy is extremely flexible and has several booleans  that  allow
63       you  to manipulate the policy and run iptables with the tightest access
64       possible.
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68       If you want to allow dhcpc client applications to execute iptables com‐
69       mands,  you  must  turn on the dhcpc_exec_iptables boolean. Disabled by
70       default.
71
72       setsebool -P dhcpc_exec_iptables 1
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76       If you want to allow all domains to execute in fips_mode, you must turn
77       on the fips_mode boolean. Enabled by default.
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79       setsebool -P fips_mode 1
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83       If  you  want  to  allow  system  to run with NIS, you must turn on the
84       nis_enabled boolean. Disabled by default.
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86       setsebool -P nis_enabled 1
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MANAGED FILES

91       The SELinux process type iptables_t can manage files labeled  with  the
92       following file types.  The paths listed are the default paths for these
93       file types.  Note the processes UID still need to have DAC permissions.
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95       iptables_lock_t
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97            /var/lock/subsys/iptables
98            /var/lock/subsys/ip6tables
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100       iptables_var_lib_t
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102            /var/lib/ebtables(/.*)?
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104       iptables_var_run_t
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106            /var/run/xtables.*
107            /var/run/ebtables.*
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109       krb5_host_rcache_t
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111            /var/tmp/krb5_0.rcache2
112            /var/cache/krb5rcache(/.*)?
113            /var/tmp/nfs_0
114            /var/tmp/DNS_25
115            /var/tmp/host_0
116            /var/tmp/imap_0
117            /var/tmp/HTTP_23
118            /var/tmp/HTTP_48
119            /var/tmp/ldap_55
120            /var/tmp/ldap_487
121            /var/tmp/ldapmap1_0
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123       psad_var_log_t
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125            /var/log/psad(/.*)?
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127       shorewall_var_lib_t
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129            /var/lib/shorewall(/.*)?
130            /var/lib/shorewall6(/.*)?
131            /var/lib/shorewall-lite(/.*)?
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FILE CONTEXTS

135       SELinux requires files to have an extended attribute to define the file
136       type.
137
138       You can see the context of a file using the -Z option to ls
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140       Policy  governs  the  access  confined  processes  have to these files.
141       SELinux iptables policy is very flexible allowing users to setup  their
142       iptables processes in as secure a method as possible.
143
144       STANDARD FILE CONTEXT
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146       SELinux  defines the file context types for the iptables, if you wanted
147       to store files with these types in a diffent paths, you need to execute
148       the  semanage  command  to sepecify alternate labeling and then use re‐
149       storecon to put the labels on disk.
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151       semanage  fcontext  -a  -t  iptables_unit_file_t  '/srv/myiptables_con‐
152       tent(/.*)?'
153       restorecon -R -v /srv/myiptables_content
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155       Note:  SELinux  often  uses  regular expressions to specify labels that
156       match multiple files.
157
158       The following file types are defined for iptables:
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162       iptables_exec_t
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164       - Set files with the iptables_exec_t type, if you want to transition an
165       executable to the iptables_t domain.
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168       Paths:
169            /usr/sbin/ip6?tables.*,  /usr/sbin/ipchains.*,  /usr/libexec/ipta‐
170            bles/iptables.init,          /usr/libexec/iptables/ip6tables.init,
171            /usr/sbin/nft,         /usr/sbin/ipset,         /usr/sbin/ipvsadm,
172            /usr/libexec/ipset,    /usr/sbin/ebtables,    /usr/sbin/arptables,
173            /usr/sbin/conntrack,   /usr/sbin/ipvsadm-save,  /usr/sbin/xtables-
174            multi,    /usr/sbin/arptables-save,     /usr/sbin/ebtables-legacy,
175            /usr/sbin/ipvsadm-restore,             /usr/sbin/arptables-legacy,
176            /usr/sbin/ebtables-restore,           /usr/sbin/arptables-restore,
177            /usr/sbin/xtables-nft-multi, /usr/sbin/xtables-legacy-multi
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179
180       iptables_initrc_exec_t
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182       -  Set files with the iptables_initrc_exec_t type, if you want to tran‐
183       sition an executable to the iptables_initrc_t domain.
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186       Paths:
187            /etc/rc.d/init.d/ip6?tables,            /etc/rc.d/init.d/ebtables,
188            /etc/rc.d/init.d/nftables
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191       iptables_lock_t
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193       -  Set  files  with  the iptables_lock_t type, if you want to treat the
194       files as iptables lock data, stored under the /var/lock directory
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197       Paths:
198            /var/lock/subsys/iptables, /var/lock/subsys/ip6tables
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201       iptables_tmp_t
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203       - Set files with the iptables_tmp_t type, if you want to store iptables
204       temporary files in the /tmp directories.
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208       iptables_unit_file_t
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210       -  Set  files  with the iptables_unit_file_t type, if you want to treat
211       the files as iptables unit content.
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214       Paths:
215            /usr/lib/systemd/system/ppp.*,    /usr/lib/systemd/system/ipset.*,
216            /usr/lib/systemd/system/vsftpd.*,            /usr/lib/systemd/sys‐
217            tem/proftpd.*,  /usr/lib/systemd/system/iptables.*,  /usr/lib/sys‐
218            temd/system/arptables.*, /usr/lib/systemd/system/ip6tables.*
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221       iptables_var_lib_t
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223       -  Set files with the iptables_var_lib_t type, if you want to store the
224       iptables files under the /var/lib directory.
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228       iptables_var_run_t
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230       - Set files with the iptables_var_run_t type, if you want to store  the
231       iptables files under the /run or /var/run directory.
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234       Paths:
235            /var/run/xtables.*, /var/run/ebtables.*
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238       Note:  File context can be temporarily modified with the chcon command.
239       If you want to permanently change the file context you need to use  the
240       semanage fcontext command.  This will modify the SELinux labeling data‐
241       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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