1journalctl_selinux(8) SELinux Policy journalctl journalctl_selinux(8)
2
3
4
6 journalctl_selinux - Security Enhanced Linux Policy for the journalctl
7 processes
8
10 Security-Enhanced Linux secures the journalctl processes via flexible
11 mandatory access control.
12
13 The journalctl processes execute with the journalctl_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep journalctl_t
20
21
22
24 The journalctl_t SELinux type can be entered via the journalctl_exec_t
25 file type.
26
27 The default entrypoint paths for the journalctl_t domain are the fol‐
28 lowing:
29
30 /usr/bin/journalctl
31
33 SELinux defines process types (domains) for each process running on the
34 system
35
36 You can see the context of a process using the -Z option to ps
37
38 Policy governs the access confined processes have to files. SELinux
39 journalctl policy is very flexible allowing users to setup their jour‐
40 nalctl processes in as secure a method as possible.
41
42 The following process types are defined for journalctl:
43
44 journalctl_t
45
46 Note: semanage permissive -a journalctl_t can be used to make the
47 process type journalctl_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
51
53 SELinux policy is customizable based on least access required. jour‐
54 nalctl policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run journalctl with the tightest
56 access possible.
57
58
59
60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
63
64 setsebool -P authlogin_nsswitch_use_ldap 1
65
66
67
68 If you want to deny any process from ptracing or debugging any other
69 processes, you must turn on the deny_ptrace boolean. Enabled by
70 default.
71
72 setsebool -P deny_ptrace 1
73
74
75
76 If you want to allow any process to mmap any file on system with
77 attribute file_type, you must turn on the domain_can_mmap_files bool‐
78 ean. Enabled by default.
79
80 setsebool -P domain_can_mmap_files 1
81
82
83
84 If you want to allow all domains write to kmsg_device, while kernel is
85 executed with systemd.log_target=kmsg parameter, you must turn on the
86 domain_can_write_kmsg boolean. Disabled by default.
87
88 setsebool -P domain_can_write_kmsg 1
89
90
91
92 If you want to allow all domains to use other domains file descriptors,
93 you must turn on the domain_fd_use boolean. Enabled by default.
94
95 setsebool -P domain_fd_use 1
96
97
98
99 If you want to allow all domains to have the kernel load modules, you
100 must turn on the domain_kernel_load_modules boolean. Disabled by
101 default.
102
103 setsebool -P domain_kernel_load_modules 1
104
105
106
107 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
109
110 setsebool -P fips_mode 1
111
112
113
114 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
116
117 setsebool -P global_ssp 1
118
119
120
121 If you want to allow confined applications to run with kerberos, you
122 must turn on the kerberos_enabled boolean. Enabled by default.
123
124 setsebool -P kerberos_enabled 1
125
126
127
128 If you want to allow system to run with NIS, you must turn on the
129 nis_enabled boolean. Disabled by default.
130
131 setsebool -P nis_enabled 1
132
133
134
135 If you want to allow confined applications to use nscd shared memory,
136 you must turn on the nscd_use_shm boolean. Disabled by default.
137
138 setsebool -P nscd_use_shm 1
139
140
141
142 If you want to support NFS home directories, you must turn on the
143 use_nfs_home_dirs boolean. Disabled by default.
144
145 setsebool -P use_nfs_home_dirs 1
146
147
148
149 If you want to support SAMBA home directories, you must turn on the
150 use_samba_home_dirs boolean. Disabled by default.
151
152 setsebool -P use_samba_home_dirs 1
153
154
155
157 The SELinux process type journalctl_t can manage files labeled with the
158 following file types. The paths listed are the default paths for these
159 file types. Note the processes UID still need to have DAC permissions.
160
161 user_home_type
162
163 all user home files
164
165
167 SELinux requires files to have an extended attribute to define the file
168 type.
169
170 You can see the context of a file using the -Z option to ls
171
172 Policy governs the access confined processes have to these files.
173 SELinux journalctl policy is very flexible allowing users to setup
174 their journalctl processes in as secure a method as possible.
175
176 The following file types are defined for journalctl:
177
178
179
180 journalctl_exec_t
181
182 - Set files with the journalctl_exec_t type, if you want to transition
183 an executable to the journalctl_t domain.
184
185
186
187 Note: File context can be temporarily modified with the chcon command.
188 If you want to permanently change the file context you need to use the
189 semanage fcontext command. This will modify the SELinux labeling data‐
190 base. You will need to use restorecon to apply the labels.
191
192
194 semanage fcontext can also be used to manipulate default file context
195 mappings.
196
197 semanage permissive can also be used to manipulate whether or not a
198 process type is permissive.
199
200 semanage module can also be used to enable/disable/install/remove pol‐
201 icy modules.
202
203 semanage boolean can also be used to manipulate the booleans
204
205
206 system-config-selinux is a GUI tool available to customize SELinux pol‐
207 icy settings.
208
209
211 This manual page was auto-generated using sepolicy manpage .
212
213
215 selinux(8), journalctl(8), semanage(8), restorecon(8), chcon(1), sepol‐
216 icy(8) , setsebool(8)
217
218
219
220journalctl 19-04-25 journalctl_selinux(8)