1nagios_eventhandler_SpElLuigniunx_sPeolliincuyx(n8a)gios_envaegnitohsa_nedvleenrt_hpalnudglienr_plugin_selinux(8)
2
6 nagios_eventhandler_plugin_selinux - Security Enhanced Linux Policy for
7 the nagios_eventhandler_plugin processes
8
10 Security-Enhanced Linux secures the nagios_eventhandler_plugin pro‐
11 cesses via flexible mandatory access control.
12 The nagios_eventhandler_plugin processes execute with the nagios_even‐
14 thandler_plugin_t SELinux type. You can check if you have these pro‐
15 cesses running by executing the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep nagios_eventhandler_plugin_t
20
24 The nagios_eventhandler_plugin_t SELinux type can be entered via the
25 nagios_eventhandler_plugin_exec_t file type.
26 The default entrypoint paths for the nagios_eventhandler_plugin_t do‐
28 main are the following:
29 /usr/lib/icinga/plugins/eventhandlers(/.*), /usr/lib/nagios/plug‐
31 ins/eventhandlers(/.*)
32
34 SELinux defines process types (domains) for each process running on the
35 system
36 You can see the context of a process using the -Z option to ps
38 Policy governs the access confined processes have to files. SELinux
40 nagios_eventhandler_plugin policy is very flexible allowing users to
41 setup their nagios_eventhandler_plugin processes in as secure a method
42 as possible.
43 The following process types are defined for nagios_eventhandler_plugin:
45 nagios_eventhandler_plugin_t
47 Note: semanage permissive -a nagios_eventhandler_plugin_t can be used
49 to make the process type nagios_eventhandler_plugin_t permissive.
50 SELinux does not deny access to permissive process types, but the AVC
51 (SELinux denials) messages are still generated.
52
55 SELinux policy is customizable based on least access required. na‐
56 gios_eventhandler_plugin policy is extremely flexible and has several
57 booleans that allow you to manipulate the policy and run nagios_even‐
58 thandler_plugin with the tightest access possible.
59 If you want to deny user domains applications to map a memory region as
63 both executable and writable, this is dangerous and the executable
64 should be reported in bugzilla, you must turn on the deny_execmem bool‐
65 ean. Disabled by default.
66 setsebool -P deny_execmem 1
68 If you want to control the ability to mmap a low area of the address
72 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
73 the mmap_low_allowed boolean. Disabled by default.
74 setsebool -P mmap_low_allowed 1
76 If you want to disable kernel module loading, you must turn on the se‐
80 cure_mode_insmod boolean. Disabled by default.
81 setsebool -P secure_mode_insmod 1
83 If you want to allow unconfined executables to make their heap memory
87 executable. Doing this is a really bad idea. Probably indicates a
88 badly coded executable, but could indicate an attack. This executable
89 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
90 echeap boolean. Disabled by default.
91 setsebool -P selinuxuser_execheap 1
93 If you want to allow unconfined executables to make their stack exe‐
97 cutable. This should never, ever be necessary. Probably indicates a
98 badly coded executable, but could indicate an attack. This executable
99 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
100 stack boolean. Enabled by default.
101 setsebool -P selinuxuser_execstack 1
103
107 The SELinux process type nagios_eventhandler_plugin_t can manage files
108 labeled with the following file types. The paths listed are the de‐
109 fault paths for these file types. Note the processes UID still need to
110 have DAC permissions.
111 file_type
113 all files on the system
115
118 SELinux requires files to have an extended attribute to define the file
119 type.
120 You can see the context of a file using the -Z option to ls
122 Policy governs the access confined processes have to these files.
124 SELinux nagios_eventhandler_plugin policy is very flexible allowing
125 users to setup their nagios_eventhandler_plugin processes in as secure
126 a method as possible.
127 STANDARD FILE CONTEXT
129 SELinux defines the file context types for the nagios_even‐
131 thandler_plugin, if you wanted to store files with these types in a
132 different paths, you need to execute the semanage command to specify
133 alternate labeling and then use restorecon to put the labels on disk.
134 semanage fcontext -a -t nagios_eventhandler_plugin_exec_t '/srv/na‐
136 gios_eventhandler_plugin/content(/.*)?'
137 restorecon -R -v /srv/mynagios_eventhandler_plugin_content
138 Note: SELinux often uses regular expressions to specify labels that
140 match multiple files.
141 The following file types are defined for nagios_eventhandler_plugin:
143 nagios_eventhandler_plugin_exec_t
147 - Set files with the nagios_eventhandler_plugin_exec_t type, if you
149 want to transition an executable to the nagios_eventhandler_plugin_t
150 domain.
151 Paths:
154 /usr/lib/icinga/plugins/eventhandlers(/.*), /usr/lib/nagios/plug‐
155 ins/eventhandlers(/.*)
156 nagios_eventhandler_plugin_tmp_t
159 - Set files with the nagios_eventhandler_plugin_tmp_t type, if you want
161 to store nagios eventhandler plugin temporary files in the /tmp direc‐
162 tories.
163 Note: File context can be temporarily modified with the chcon command.
167 If you want to permanently change the file context you need to use the
168 semanage fcontext command. This will modify the SELinux labeling data‐
169 base. You will need to use restorecon to apply the labels.
170
173 semanage fcontext can also be used to manipulate default file context
174 mappings.
175 semanage permissive can also be used to manipulate whether or not a
177 process type is permissive.
178 semanage module can also be used to enable/disable/install/remove pol‐
180 icy modules.
181 semanage boolean can also be used to manipulate the booleans
183 system-config-selinux is a GUI tool available to customize SELinux pol‐
186 icy settings.
187
190 This manual page was auto-generated using sepolicy manpage .
191
194 selinux(8), nagios_eventhandler_plugin(8), semanage(8), restorecon(8),
195 chcon(1), sepolicy(8), setsebool(8)
196nagios_eventhandler_plugin 23-10-2n0agios_eventhandler_plugin_selinux(8)