1passenger_selinux(8) SELinux Policy passenger passenger_selinux(8)
2
3
4
6 passenger_selinux - Security Enhanced Linux Policy for the passenger
7 processes
8
10 Security-Enhanced Linux secures the passenger processes via flexible
11 mandatory access control.
12
13 The passenger processes execute with the passenger_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 passenger_t
20
21
22
24 The passenger_t SELinux type can be entered via the passenger_exec_t
25 file type.
26
27 The default entrypoint paths for the passenger_t domain are the follow‐
28 ing:
29
30 /usr/share/.*/gems/.*/helper-scripts/prespawn, /usr/lib/gems/.*/Passen‐
31 ger.*, /usr/lib/gems/.*/ApplicationPoolServerExecutable,
32 /usr/share/gems/.*/Passenger.*, /usr/share/gems/.*/Application‐
33 PoolServerExecutable
34
36 SELinux defines process types (domains) for each process running on the
37 system
38
39 You can see the context of a process using the -Z option to ps
40
41 Policy governs the access confined processes have to files. SELinux
42 passenger policy is very flexible allowing users to setup their passen‐
43 ger processes in as secure a method as possible.
44
45 The following process types are defined for passenger:
46
47 passenger_t
48
49 Note: semanage permissive -a passenger_t can be used to make the
50 process type passenger_t permissive. SELinux does not deny access to
51 permissive process types, but the AVC (SELinux denials) messages are
52 still generated.
53
54
56 SELinux policy is customizable based on least access required. passen‐
57 ger policy is extremely flexible and has several booleans that allow
58 you to manipulate the policy and run passenger with the tightest access
59 possible.
60
61
62
63 If you want to allow users to resolve user passwd entries directly from
64 ldap rather then using a sssd server, you must turn on the authlo‐
65 gin_nsswitch_use_ldap boolean. Disabled by default.
66
67 setsebool -P authlogin_nsswitch_use_ldap 1
68
69
70
71 If you want to allow all domains to execute in fips_mode, you must turn
72 on the fips_mode boolean. Enabled by default.
73
74 setsebool -P fips_mode 1
75
76
77
78 If you want to allow Apache to run in stickshift mode, not transition
79 to passenger, you must turn on the httpd_run_stickshift boolean.
80 Enabled by default.
81
82 setsebool -P httpd_run_stickshift 1
83
84
85
86 If you want to allow confined applications to run with kerberos, you
87 must turn on the kerberos_enabled boolean. Enabled by default.
88
89 setsebool -P kerberos_enabled 1
90
91
92
93 If you want to allow system to run with NIS, you must turn on the
94 nis_enabled boolean. Disabled by default.
95
96 setsebool -P nis_enabled 1
97
98
99
100 If you want to allow confined applications to use nscd shared memory,
101 you must turn on the nscd_use_shm boolean. Enabled by default.
102
103 setsebool -P nscd_use_shm 1
104
105
106
108 The SELinux process type passenger_t can manage files labeled with the
109 following file types. The paths listed are the default paths for these
110 file types. Note the processes UID still need to have DAC permissions.
111
112 passenger_log_t
113
114 /var/log/passenger.*
115
116 passenger_tmp_t
117
118
119 passenger_var_lib_t
120
121 /var/lib/passenger(/.*)?
122
123 passenger_var_run_t
124
125 /var/run/passenger(/.*)?
126
127 puppet_var_lib_t
128
129 /var/lib/puppet(/.*)?
130
131
133 SELinux requires files to have an extended attribute to define the file
134 type.
135
136 You can see the context of a file using the -Z option to ls
137
138 Policy governs the access confined processes have to these files.
139 SELinux passenger policy is very flexible allowing users to setup their
140 passenger processes in as secure a method as possible.
141
142 STANDARD FILE CONTEXT
143
144 SELinux defines the file context types for the passenger, if you wanted
145 to store files with these types in a diffent paths, you need to execute
146 the semanage command to sepecify alternate labeling and then use
147 restorecon to put the labels on disk.
148
149 semanage fcontext -a -t passenger_var_run_t '/srv/mypassenger_con‐
150 tent(/.*)?'
151 restorecon -R -v /srv/mypassenger_content
152
153 Note: SELinux often uses regular expressions to specify labels that
154 match multiple files.
155
156 The following file types are defined for passenger:
157
158
159
160 passenger_exec_t
161
162 - Set files with the passenger_exec_t type, if you want to transition
163 an executable to the passenger_t domain.
164
165
166 Paths:
167 /usr/share/.*/gems/.*/helper-scripts/prespawn,
168 /usr/lib/gems/.*/Passenger.*, /usr/lib/gems/.*/Application‐
169 PoolServerExecutable, /usr/share/gems/.*/Passenger.*,
170 /usr/share/gems/.*/ApplicationPoolServerExecutable
171
172
173 passenger_log_t
174
175 - Set files with the passenger_log_t type, if you want to treat the
176 data as passenger log data, usually stored under the /var/log direc‐
177 tory.
178
179
180
181 passenger_tmp_t
182
183 - Set files with the passenger_tmp_t type, if you want to store passen‐
184 ger temporary files in the /tmp directories.
185
186
187
188 passenger_var_lib_t
189
190 - Set files with the passenger_var_lib_t type, if you want to store the
191 passenger files under the /var/lib directory.
192
193
194
195 passenger_var_run_t
196
197 - Set files with the passenger_var_run_t type, if you want to store the
198 passenger files under the /run or /var/run directory.
199
200
201
202 Note: File context can be temporarily modified with the chcon command.
203 If you want to permanently change the file context you need to use the
204 semanage fcontext command. This will modify the SELinux labeling data‐
205 base. You will need to use restorecon to apply the labels.
206
207
209 semanage fcontext can also be used to manipulate default file context
210 mappings.
211
212 semanage permissive can also be used to manipulate whether or not a
213 process type is permissive.
214
215 semanage module can also be used to enable/disable/install/remove pol‐
216 icy modules.
217
218 semanage boolean can also be used to manipulate the booleans
219
220
221 system-config-selinux is a GUI tool available to customize SELinux pol‐
222 icy settings.
223
224
226 This manual page was auto-generated using sepolicy manpage .
227
228
230 selinux(8), passenger(8), semanage(8), restorecon(8), chcon(1), sepol‐
231 icy(8), setsebool(8)
232
233
234
235passenger 19-10-08 passenger_selinux(8)