1utempter_selinux(8) SELinux Policy utempter utempter_selinux(8)
2
3
4
6 utempter_selinux - Security Enhanced Linux Policy for the utempter pro‐
7 cesses
8
10 Security-Enhanced Linux secures the utempter processes via flexible
11 mandatory access control.
12
13 The utempter processes execute with the utempter_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep utempter_t
20
21
22
24 The utempter_t SELinux type can be entered via the utempter_exec_t file
25 type.
26
27 The default entrypoint paths for the utempter_t domain are the follow‐
28 ing:
29
30 /usr/sbin/utempter
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 utempter policy is very flexible allowing users to setup their utempter
40 processes in as secure a method as possible.
41
42 The following process types are defined for utempter:
43
44 utempter_t
45
46 Note: semanage permissive -a utempter_t can be used to make the process
47 type utempter_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
51
53 SELinux policy is customizable based on least access required.
54 utempter policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run utempter 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 allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
70
71 setsebool -P fips_mode 1
72
73
74
75 If you want to allow confined applications to run with kerberos, you
76 must turn on the kerberos_enabled boolean. Enabled by default.
77
78 setsebool -P kerberos_enabled 1
79
80
81
82 If you want to allow system to run with NIS, you must turn on the
83 nis_enabled boolean. Disabled by default.
84
85 setsebool -P nis_enabled 1
86
87
88
89 If you want to allow confined applications to use nscd shared memory,
90 you must turn on the nscd_use_shm boolean. Disabled by default.
91
92 setsebool -P nscd_use_shm 1
93
94
95
97 The SELinux process type utempter_t can manage files labeled with the
98 following file types. The paths listed are the default paths for these
99 file types. Note the processes UID still need to have DAC permissions.
100
101 initrc_var_run_t
102
103 /var/run/utmp
104 /var/run/random-seed
105 /var/run/runlevel.dir
106 /var/run/setmixer_flag
107
108 user_tmp_t
109
110 /dev/shm/mono.*
111 /var/run/user(/.*)?
112 /tmp/.ICE-unix(/.*)?
113 /tmp/.X11-unix(/.*)?
114 /dev/shm/pulse-shm.*
115 /tmp/.X0-lock
116 /tmp/hsperfdata_root
117 /var/tmp/hsperfdata_root
118 /home/[^/]+/tmp
119 /home/[^/]+/.tmp
120 /tmp/gconfd-[^/]+
121
122 wtmp_t
123
124 /var/log/wtmp.*
125
126
128 SELinux requires files to have an extended attribute to define the file
129 type.
130
131 You can see the context of a file using the -Z option to ls
132
133 Policy governs the access confined processes have to these files.
134 SELinux utempter policy is very flexible allowing users to setup their
135 utempter processes in as secure a method as possible.
136
137 The following file types are defined for utempter:
138
139
140
141 utempter_exec_t
142
143 - Set files with the utempter_exec_t type, if you want to transition an
144 executable to the utempter_t domain.
145
146
147
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.
152
153
155 semanage fcontext can also be used to manipulate default file context
156 mappings.
157
158 semanage permissive can also be used to manipulate whether or not a
159 process type is permissive.
160
161 semanage module can also be used to enable/disable/install/remove pol‐
162 icy modules.
163
164 semanage boolean can also be used to manipulate the booleans
165
166
167 system-config-selinux is a GUI tool available to customize SELinux pol‐
168 icy settings.
169
170
172 This manual page was auto-generated using sepolicy manpage .
173
174
176 selinux(8), utempter(8), semanage(8), restorecon(8), chcon(1), sepol‐
177 icy(8), setsebool(8)
178
179
180
181utempter 19-06-18 utempter_selinux(8)