1checkpolicy_selinux(8) SELinux Policy checkpolicy checkpolicy_selinux(8)
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6 checkpolicy_selinux - Security Enhanced Linux Policy for the checkpol‐
7 icy processes
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10 Security-Enhanced Linux secures the checkpolicy processes via flexible
11 mandatory access control.
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13 The checkpolicy processes execute with the checkpolicy_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 checkpolicy_t
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24 The checkpolicy_t SELinux type can be entered via the checkpol‐
25 icy_exec_t file type.
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27 The default entrypoint paths for the checkpolicy_t domain are the fol‐
28 lowing:
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30 /usr/bin/checkpolicy
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 checkpolicy policy is very flexible allowing users to setup their
40 checkpolicy processes in as secure a method as possible.
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42 The following process types are defined for checkpolicy:
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44 checkpolicy_t
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46 Note: semanage permissive -a checkpolicy_t can be used to make the
47 process type checkpolicy_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required. check‐
54 policy policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run checkpolicy with the tightest
56 access possible.
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60 If you want to allow all domains to use other domains file descriptors,
61 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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63 setsebool -P allow_domain_fd_use 1
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67 If you want to allow sysadm to debug or ptrace all processes, you must
68 turn on the allow_ptrace boolean. Disabled by default.
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70 setsebool -P allow_ptrace 1
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74 If you want to allow all domains to have the kernel load modules, you
75 must turn on the domain_kernel_load_modules boolean. Disabled by
76 default.
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78 setsebool -P domain_kernel_load_modules 1
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82 If you want to allow all domains to execute in fips_mode, you must turn
83 on the fips_mode boolean. Enabled by default.
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85 setsebool -P fips_mode 1
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89 If you want to enable reading of urandom for all domains, you must turn
90 on the global_ssp boolean. Disabled by default.
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92 setsebool -P global_ssp 1
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97 The SELinux process type checkpolicy_t can manage files labeled with
98 the following file types. The paths listed are the default paths for
99 these file types. Note the processes UID still need to have DAC per‐
100 missions.
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102 initrc_tmp_t
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105 mnt_t
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107 /mnt(/[^/]*)
108 /mnt(/[^/]*)?
109 /rhev(/[^/]*)?
110 /media(/[^/]*)
111 /media(/[^/]*)?
112 /etc/rhgb(/.*)?
113 /media/.hal-.*
114 /net
115 /afs
116 /rhev
117 /misc
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119 semanage_store_t
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121 /etc/selinux/([^/]*/)?policy(/.*)?
122 /etc/selinux/([^/]*/)?modules/(active|tmp|previous)(/.*)?
123 /etc/share/selinux/mls(/.*)?
124 /etc/share/selinux/targeted(/.*)?
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126 tmp_t
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128 /tmp
129 /usr/tmp
130 /var/tmp
131 /tmp-inst
132 /var/tmp-inst
133 /var/tmp/vi.recover
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137 SELinux requires files to have an extended attribute to define the file
138 type.
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140 You can see the context of a file using the -Z option to ls
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142 Policy governs the access confined processes have to these files.
143 SELinux checkpolicy policy is very flexible allowing users to setup
144 their checkpolicy processes in as secure a method as possible.
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146 The following file types are defined for checkpolicy:
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150 checkpolicy_exec_t
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152 - Set files with the checkpolicy_exec_t type, if you want to transition
153 an executable to the checkpolicy_t domain.
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157 Note: File context can be temporarily modified with the chcon command.
158 If you want to permanently change the file context you need to use the
159 semanage fcontext command. This will modify the SELinux labeling data‐
160 base. You will need to use restorecon to apply the labels.
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164 semanage fcontext can also be used to manipulate default file context
165 mappings.
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167 semanage permissive can also be used to manipulate whether or not a
168 process type is permissive.
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170 semanage module can also be used to enable/disable/install/remove pol‐
171 icy modules.
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173 semanage boolean can also be used to manipulate the booleans
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176 system-config-selinux is a GUI tool available to customize SELinux pol‐
177 icy settings.
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181 This manual page was auto-generated using sepolicy manpage .
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185 selinux(8), checkpolicy(8), semanage(8), restorecon(8), chcon(1) , set‐
186 sebool(8)
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190checkpolicy 15-06-03 checkpolicy_selinux(8)