1ndc_selinux(8) SELinux Policy ndc ndc_selinux(8)
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6 ndc_selinux - Security Enhanced Linux Policy for the ndc processes
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9 Security-Enhanced Linux secures the ndc processes via flexible manda‐
10 tory access control.
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12 The ndc processes execute with the ndc_t SELinux type. You can check if
13 you have these processes running by executing the ps command with the
14 -Z qualifier.
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16 For example:
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18 ps -eZ | grep ndc_t
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23 The ndc_t SELinux type can be entered via the ndc_exec_t file type.
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25 The default entrypoint paths for the ndc_t domain are the following:
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27 /usr/sbin/r?ndc
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 ndc policy is very flexible allowing users to setup their ndc processes
37 in as secure a method as possible.
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39 The following process types are defined for ndc:
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41 ndc_t
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43 Note: semanage permissive -a ndc_t can be used to make the process type
44 ndc_t permissive. SELinux does not deny access to permissive process
45 types, but the AVC (SELinux denials) messages are still generated.
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49 SELinux policy is customizable based on least access required. ndc
50 policy is extremely flexible and has several booleans that allow you to
51 manipulate the policy and run ndc with the tightest access possible.
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55 If you want to allow users to resolve user passwd entries directly from
56 ldap rather then using a sssd server, you must turn on the authlo‐
57 gin_nsswitch_use_ldap boolean. Disabled by default.
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59 setsebool -P authlogin_nsswitch_use_ldap 1
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63 If you want to allow all domains to execute in fips_mode, you must turn
64 on the fips_mode boolean. Enabled by default.
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66 setsebool -P fips_mode 1
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70 If you want to allow confined applications to run with kerberos, you
71 must turn on the kerberos_enabled boolean. Disabled by default.
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73 setsebool -P kerberos_enabled 1
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77 If you want to allow system to run with NIS, you must turn on the
78 nis_enabled boolean. Disabled by default.
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80 setsebool -P nis_enabled 1
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84 If you want to allow confined applications to use nscd shared memory,
85 you must turn on the nscd_use_shm boolean. Disabled by default.
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87 setsebool -P nscd_use_shm 1
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92 SELinux requires files to have an extended attribute to define the file
93 type.
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95 You can see the context of a file using the -Z option to ls
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97 Policy governs the access confined processes have to these files.
98 SELinux ndc policy is very flexible allowing users to setup their ndc
99 processes in as secure a method as possible.
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101 The following file types are defined for ndc:
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105 ndc_exec_t
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107 - Set files with the ndc_exec_t type, if you want to transition an exe‐
108 cutable to the ndc_t domain.
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112 Note: File context can be temporarily modified with the chcon command.
113 If you want to permanently change the file context you need to use the
114 semanage fcontext command. This will modify the SELinux labeling data‐
115 base. You will need to use restorecon to apply the labels.
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119 semanage fcontext can also be used to manipulate default file context
120 mappings.
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122 semanage permissive can also be used to manipulate whether or not a
123 process type is permissive.
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125 semanage module can also be used to enable/disable/install/remove pol‐
126 icy modules.
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128 semanage boolean can also be used to manipulate the booleans
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131 system-config-selinux is a GUI tool available to customize SELinux pol‐
132 icy settings.
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136 This manual page was auto-generated using sepolicy manpage .
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140 selinux(8), ndc(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
141 setsebool(8)
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145ndc 19-12-02 ndc_selinux(8)