1prelink_mask_selinux(8) SELinux Policy prelink_mask prelink_mask_selinux(8)
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6 prelink_mask_selinux - Security Enhanced Linux Policy for the pre‐
7 link_mask processes
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10 Security-Enhanced Linux secures the prelink_mask processes via flexible
11 mandatory access control.
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13 The prelink_mask processes execute with the prelink_mask_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep prelink_mask_t
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24 The prelink_mask_t SELinux type can be entered via the prelink_exec_t
25 file type.
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27 The default entrypoint paths for the prelink_mask_t domain are the fol‐
28 lowing:
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30 /usr/sbin/prelink(.bin)?
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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 prelink_mask policy is very flexible allowing users to setup their pre‐
40 link_mask processes in as secure a method as possible.
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42 The following process types are defined for prelink_mask:
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44 prelink_mask_t
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46 Note: semanage permissive -a prelink_mask_t can be used to make the
47 process type prelink_mask_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. pre‐
54 link_mask policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run prelink_mask with the tight‐
56 est 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 prelink_mask_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 anon_inodefs_t
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105 initrc_tmp_t
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108 mnt_t
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110 /mnt(/[^/]*)
111 /mnt(/[^/]*)?
112 /rhev(/[^/]*)?
113 /media(/[^/]*)
114 /media(/[^/]*)?
115 /etc/rhgb(/.*)?
116 /media/.hal-.*
117 /net
118 /afs
119 /rhev
120 /misc
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122 tmp_t
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124 /tmp
125 /usr/tmp
126 /var/tmp
127 /tmp-inst
128 /var/tmp-inst
129 /var/tmp/vi.recover
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133 semanage fcontext can also be used to manipulate default file context
134 mappings.
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136 semanage permissive can also be used to manipulate whether or not a
137 process type is permissive.
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139 semanage module can also be used to enable/disable/install/remove pol‐
140 icy modules.
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142 semanage boolean can also be used to manipulate the booleans
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145 system-config-selinux is a GUI tool available to customize SELinux pol‐
146 icy settings.
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150 This manual page was auto-generated using sepolicy manpage .
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154 selinux(8), prelink_mask(8), semanage(8), restorecon(8), chcon(1) ,
155 setsebool(8)
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159prelink_mask 15-06-03 prelink_mask_selinux(8)