1nagios_unconfined_pluSgEiLni_nsuexliPnoulxi(c8y)nagios_unncaognifoisn_eudn_cpolnufgiinned_plugin_selinux(8)
2
6 nagios_unconfined_plugin_selinux - Security Enhanced Linux Policy for
7 the nagios_unconfined_plugin processes
8
10 Security-Enhanced Linux secures the nagios_unconfined_plugin processes
11 via flexible mandatory access control.
12 The nagios_unconfined_plugin processes execute with the nagios_uncon‐
14 fined_plugin_t SELinux type. You can check if you have these processes
15 running by executing the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep nagios_unconfined_plugin_t
20
24 The nagios_unconfined_plugin_t SELinux type can be entered via the
25 nagios_unconfined_plugin_exec_t file type.
26 The default entrypoint paths for the nagios_unconfined_plugin_t domain
28 are the following:
29 /usr/lib/nagios/plugins/.*
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 nagios_unconfined_plugin policy is very flexible allowing users to set‐
40 up their nagios_unconfined_plugin processes in as secure a method as
41 possible.
42 The following process types are defined for nagios_unconfined_plugin:
44 nagios_unconfined_plugin_t
46 Note: semanage permissive -a nagios_unconfined_plugin_t can be used to
48 make the process type nagios_unconfined_plugin_t permissive. SELinux
49 does not deny access to permissive process types, but the AVC (SELinux
50 denials) messages are still generated.
51
54 SELinux policy is customizable based on least access required.
55 nagios_unconfined_plugin policy is extremely flexible and has several
56 booleans that allow you to manipulate the policy and run nagios_uncon‐
57 fined_plugin with the tightest access possible.
58 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.
65 setsebool -P deny_execmem 1
67 If you want to allow all domains to execute in fips_mode, you must turn
71 on the fips_mode boolean. Enabled by default.
72 setsebool -P fips_mode 1
74 If you want to allow syslogd the ability to call nagios plugins. It is
78 turned on by omprog rsyslog plugin, you must turn on the logging_sys‐
79 logd_run_nagios_plugins boolean. Disabled by default.
80 setsebool -P logging_syslogd_run_nagios_plugins 1
82 If you want to control the ability to mmap a low area of the address
86 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
87 the mmap_low_allowed boolean. Disabled by default.
88 setsebool -P mmap_low_allowed 1
90 If you want to disable kernel module loading, you must turn on the
94 secure_mode_insmod boolean. Enabled by default.
95 setsebool -P secure_mode_insmod 1
97 If you want to allow unconfined executables to make their heap memory
101 executable. Doing this is a really bad idea. Probably indicates a
102 badly coded executable, but could indicate an attack. This executable
103 should be reported in bugzilla, you must turn on the selin‐
104 uxuser_execheap boolean. Disabled by default.
105 setsebool -P selinuxuser_execheap 1
107 If you want to allow unconfined executables to make their stack exe‐
111 cutable. This should never, ever be necessary. Probably indicates a
112 badly coded executable, but could indicate an attack. This executable
113 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
114 stack boolean. Enabled by default.
115 setsebool -P selinuxuser_execstack 1
117
121 The SELinux process type nagios_unconfined_plugin_t can manage files
122 labeled with the following file types. The paths listed are the
123 default paths for these file types. Note the processes UID still need
124 to have DAC permissions.
125 file_type
127 all files on the system
129
132 SELinux requires files to have an extended attribute to define the file
133 type.
134 You can see the context of a file using the -Z option to ls
136 Policy governs the access confined processes have to these files.
138 SELinux nagios_unconfined_plugin policy is very flexible allowing users
139 to setup their nagios_unconfined_plugin processes in as secure a method
140 as possible.
141 The following file types are defined for nagios_unconfined_plugin:
143 nagios_unconfined_plugin_exec_t
147 - Set files with the nagios_unconfined_plugin_exec_t type, if you want
149 to transition an executable to the nagios_unconfined_plugin_t domain.
150 Note: File context can be temporarily modified with the chcon command.
154 If you want to permanently change the file context you need to use the
155 semanage fcontext command. This will modify the SELinux labeling data‐
156 base. You will need to use restorecon to apply the labels.
157
160 semanage fcontext can also be used to manipulate default file context
161 mappings.
162 semanage permissive can also be used to manipulate whether or not a
164 process type is permissive.
165 semanage module can also be used to enable/disable/install/remove pol‐
167 icy modules.
168 semanage boolean can also be used to manipulate the booleans
170 system-config-selinux is a GUI tool available to customize SELinux pol‐
173 icy settings.
174
177 This manual page was auto-generated using sepolicy manpage .
178
181 selinux(8), nagios_unconfined_plugin(8), semanage(8), restorecon(8),
182 chcon(1), sepolicy(8), setsebool(8)
183nagios_unconfined_plugin 19-10-08nagios_unconfined_plugin_selinux(8)