1zabbix_script_selinux(8) SELinux Policy zabbix_script zabbix_script_selinux(8)
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6 zabbix_script_selinux - Security Enhanced Linux Policy for the zab‐
7 bix_script processes
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10 Security-Enhanced Linux secures the zabbix_script processes via flexi‐
11 ble mandatory access control.
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13 The zabbix_script processes execute with the zabbix_script_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 zabbix_script_t
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24 The zabbix_script_t SELinux type can be entered via the zab‐
25 bix_script_exec_t file type.
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27 The default entrypoint paths for the zabbix_script_t domain are the
28 following:
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30 /usr/lib/zabbix/externalscripts(/.*)?, /var/lib/zabbix/exter‐
31 nalscripts(/.*)?
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34 SELinux defines process types (domains) for each process running on the
35 system
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37 You can see the context of a process using the -Z option to ps
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39 Policy governs the access confined processes have to files. SELinux
40 zabbix_script policy is very flexible allowing users to setup their
41 zabbix_script processes in as secure a method as possible.
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43 The following process types are defined for zabbix_script:
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45 zabbix_script_t
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47 Note: semanage permissive -a zabbix_script_t can be used to make the
48 process type zabbix_script_t permissive. SELinux does not deny access
49 to permissive process types, but the AVC (SELinux denials) messages are
50 still generated.
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54 SELinux policy is customizable based on least access required. zab‐
55 bix_script policy is extremely flexible and has several booleans that
56 allow you to manipulate the policy and run zabbix_script with the
57 tightest access possible.
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61 If you want to deny user domains applications to map a memory region as
62 both executable and writable, this is dangerous and the executable
63 should be reported in bugzilla, you must turn on the deny_execmem bool‐
64 ean. Enabled by default.
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66 setsebool -P deny_execmem 1
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70 If you want to allow all domains to execute in fips_mode, you must turn
71 on the fips_mode boolean. Enabled by default.
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73 setsebool -P fips_mode 1
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77 If you want to control the ability to mmap a low area of the address
78 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
79 the mmap_low_allowed boolean. Disabled by default.
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81 setsebool -P mmap_low_allowed 1
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85 If you want to disable kernel module loading, you must turn on the
86 secure_mode_insmod boolean. Enabled by default.
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88 setsebool -P secure_mode_insmod 1
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92 If you want to allow unconfined executables to make their heap memory
93 executable. Doing this is a really bad idea. Probably indicates a
94 badly coded executable, but could indicate an attack. This executable
95 should be reported in bugzilla, you must turn on the selin‐
96 uxuser_execheap boolean. Disabled by default.
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98 setsebool -P selinuxuser_execheap 1
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102 If you want to allow unconfined executables to make their stack exe‐
103 cutable. This should never, ever be necessary. Probably indicates a
104 badly coded executable, but could indicate an attack. This executable
105 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
106 stack boolean. Disabled by default.
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108 setsebool -P selinuxuser_execstack 1
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113 The SELinux process type zabbix_script_t can manage files labeled with
114 the following file types. The paths listed are the default paths for
115 these file types. Note the processes UID still need to have DAC per‐
116 missions.
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118 file_type
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120 all files on the system
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124 SELinux requires files to have an extended attribute to define the file
125 type.
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127 You can see the context of a file using the -Z option to ls
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129 Policy governs the access confined processes have to these files.
130 SELinux zabbix_script policy is very flexible allowing users to setup
131 their zabbix_script processes in as secure a method as possible.
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133 The following file types are defined for zabbix_script:
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137 zabbix_script_exec_t
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139 - Set files with the zabbix_script_exec_t type, if you want to transi‐
140 tion an executable to the zabbix_script_t domain.
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143 Paths:
144 /usr/lib/zabbix/externalscripts(/.*)?, /var/lib/zabbix/exter‐
145 nalscripts(/.*)?
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148 Note: File context can be temporarily modified with the chcon command.
149 If you want to permanently change the file context you need to use the
150 semanage fcontext command. This will modify the SELinux labeling data‐
151 base. You will need to use restorecon to apply the labels.
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155 semanage fcontext can also be used to manipulate default file context
156 mappings.
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158 semanage permissive can also be used to manipulate whether or not a
159 process type is permissive.
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161 semanage module can also be used to enable/disable/install/remove pol‐
162 icy modules.
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164 semanage boolean can also be used to manipulate the booleans
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167 system-config-selinux is a GUI tool available to customize SELinux pol‐
168 icy settings.
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172 This manual page was auto-generated using sepolicy manpage .
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176 selinux(8), zabbix_script(8), semanage(8), restorecon(8), chcon(1),
177 sepolicy(8), setsebool(8)
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181zabbix_script 19-12-02 zabbix_script_selinux(8)