1zabbix_agent_selinux(8) SELinux Policy zabbix_agent zabbix_agent_selinux(8)
2
6 zabbix_agent_selinux - Security Enhanced Linux Policy for the zab‐
7 bix_agent processes
8
10 Security-Enhanced Linux secures the zabbix_agent processes via flexible
11 mandatory access control.
12 The zabbix_agent processes execute with the zabbix_agent_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep zabbix_agent_t
20
24 The zabbix_agent_t SELinux type can be entered via the file_type, unla‐
25 beled_t, proc_type, filesystem_type, zabbix_agent_exec_t,
26 mtrr_device_t, sysctl_type file types.
27 The default entrypoint paths for the zabbix_agent_t domain are the fol‐
29 lowing:
30 all files on the system, /usr/(s)?bin/zabbix_agentd, /dev/cpu/mtrr
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 zabbix_agent policy is very flexible allowing users to setup their zab‐
41 bix_agent processes in as secure a method as possible.
42 The following process types are defined for zabbix_agent:
44 zabbix_agent_t
46 Note: semanage permissive -a zabbix_agent_t can be used to make the
48 process type zabbix_agent_t permissive. SELinux does not deny access to
49 permissive process types, but the AVC (SELinux denials) messages are
50 still generated.
51
54 SELinux policy is customizable based on least access required. zab‐
55 bix_agent policy is extremely flexible and has several booleans that
56 allow you to manipulate the policy and run zabbix_agent with the tight‐
57 est access possible.
58 If you want to allow all daemons to write corefiles to /, you must turn
62 on the allow_daemons_dump_core boolean. Disabled by default.
63 setsebool -P allow_daemons_dump_core 1
65 If you want to allow all daemons to use tcp wrappers, you must turn on
69 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
70 setsebool -P allow_daemons_use_tcp_wrapper 1
72 If you want to allow all daemons the ability to read/write terminals,
76 you must turn on the allow_daemons_use_tty boolean. Disabled by
77 default.
78 setsebool -P allow_daemons_use_tty 1
80 If you want to allow all domains to use other domains file descriptors,
84 you must turn on the allow_domain_fd_use boolean. Enabled by default.
85 setsebool -P allow_domain_fd_use 1
87 If you want to allow unconfined executables to make their heap memory
91 executable. Doing this is a really bad idea. Probably indicates a
92 badly coded executable, but could indicate an attack. This executable
93 should be reported in bugzilla, you must turn on the allow_execheap
94 boolean. Disabled by default.
95 setsebool -P allow_execheap 1
97 If you want to allow unconfined executables to map a memory region as
101 both executable and writable, this is dangerous and the executable
102 should be reported in bugzilla), you must turn on the allow_execmem
103 boolean. Enabled by default.
104 setsebool -P allow_execmem 1
106 If you want to allow all unconfined executables to use libraries
110 requiring text relocation that are not labeled textrel_shlib_t), you
111 must turn on the allow_execmod boolean. Enabled by default.
112 setsebool -P allow_execmod 1
114 If you want to allow unconfined executables to make their stack exe‐
118 cutable. This should never, ever be necessary. Probably indicates a
119 badly coded executable, but could indicate an attack. This executable
120 should be reported in bugzilla), you must turn on the allow_execstack
121 boolean. Enabled by default.
122 setsebool -P allow_execstack 1
124 If you want to allow confined applications to run with kerberos, you
128 must turn on the allow_kerberos boolean. Enabled by default.
129 setsebool -P allow_kerberos 1
131 If you want to allow sysadm to debug or ptrace all processes, you must
135 turn on the allow_ptrace boolean. Disabled by default.
136 setsebool -P allow_ptrace 1
138 If you want to allow system to run with NIS, you must turn on the
142 allow_ypbind boolean. Disabled by default.
143 setsebool -P allow_ypbind 1
145 If you want to enable cluster mode for daemons, you must turn on the
149 daemons_enable_cluster_mode boolean. Disabled by default.
150 setsebool -P daemons_enable_cluster_mode 1
152 If you want to allow all domains to have the kernel load modules, you
156 must turn on the domain_kernel_load_modules boolean. Disabled by
157 default.
158 setsebool -P domain_kernel_load_modules 1
160 If you want to allow all domains to execute in fips_mode, you must turn
164 on the fips_mode boolean. Enabled by default.
165 setsebool -P fips_mode 1
167 If you want to enable reading of urandom for all domains, you must turn
171 on the global_ssp boolean. Disabled by default.
172 setsebool -P global_ssp 1
174 If you want to enable support for upstart as the init program, you must
178 turn on the init_upstart boolean. Enabled by default.
179 setsebool -P init_upstart 1
181 If you want to allow certain domains to map low memory in the kernel,
185 you must turn on the mmap_low_allowed boolean. Disabled by default.
186 setsebool -P mmap_low_allowed 1
188 If you want to allow confined applications to use nscd shared memory,
192 you must turn on the nscd_use_shm boolean. Enabled by default.
193 setsebool -P nscd_use_shm 1
195 If you want to boolean to determine whether the system permits loading
199 policy, setting enforcing mode, and changing boolean values. Set this
200 to true and you have to reboot to set it back, you must turn on the
201 secure_mode_policyload boolean. Disabled by default.
202 setsebool -P secure_mode_policyload 1
204 If you want to support X userspace object manager, you must turn on the
208 xserver_object_manager boolean. Disabled by default.
209 setsebool -P xserver_object_manager 1
211 If you want to determine whether zabbix can connect to all TCP ports,
215 you must turn on the zabbix_can_network boolean. Disabled by default.
216 setsebool -P zabbix_can_network 1
218
222 SELinux defines port types to represent TCP and UDP ports.
223 You can see the types associated with a port by using the following
225 command:
226 semanage port -l
228 Policy governs the access confined processes have to these ports.
231 SELinux zabbix_agent policy is very flexible allowing users to setup
232 their zabbix_agent processes in as secure a method as possible.
233 The following port types are defined for zabbix_agent:
235 zabbix_agent_port_t
238 Default Defined Ports:
242 tcp 10050
243
245 The SELinux process type zabbix_agent_t can manage files labeled with
246 the following file types. The paths listed are the default paths for
247 these file types. Note the processes UID still need to have DAC per‐
248 missions.
249 file_type
251 all files on the system
253
256 SELinux requires files to have an extended attribute to define the file
257 type.
258 You can see the context of a file using the -Z option to ls
260 Policy governs the access confined processes have to these files.
262 SELinux zabbix_agent policy is very flexible allowing users to setup
263 their zabbix_agent processes in as secure a method as possible.
264 The following file types are defined for zabbix_agent:
266 zabbix_agent_exec_t
270 - Set files with the zabbix_agent_exec_t type, if you want to transi‐
272 tion an executable to the zabbix_agent_t domain.
273 zabbix_agent_initrc_exec_t
277 - Set files with the zabbix_agent_initrc_exec_t type, if you want to
279 transition an executable to the zabbix_agent_initrc_t domain.
280 Note: File context can be temporarily modified with the chcon command.
284 If you want to permanently change the file context you need to use the
285 semanage fcontext command. This will modify the SELinux labeling data‐
286 base. You will need to use restorecon to apply the labels.
287
290 semanage fcontext can also be used to manipulate default file context
291 mappings.
292 semanage permissive can also be used to manipulate whether or not a
294 process type is permissive.
295 semanage module can also be used to enable/disable/install/remove pol‐
297 icy modules.
298 semanage port can also be used to manipulate the port definitions
300 semanage boolean can also be used to manipulate the booleans
302 system-config-selinux is a GUI tool available to customize SELinux pol‐
305 icy settings.
306
309 This manual page was auto-generated using sepolicy manpage .
310
313 selinux(8), zabbix_agent(8), semanage(8), restorecon(8), chcon(1) ,
314 setsebool(8)
315zabbix_agent 15-06-03 zabbix_agent_selinux(8)