1passenger_selinux(8) SELinux Policy passenger passenger_selinux(8)
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6 passenger_selinux - Security Enhanced Linux Policy for the passenger
7 processes
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10 Security-Enhanced Linux secures the passenger processes via flexible
11 mandatory access control.
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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.
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17 For example:
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19 ps -eZ | grep passenger_t
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24 The passenger_t SELinux type can be entered via the passenger_exec_t
25 file type.
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27 The default entrypoint paths for the passenger_t domain are the follow‐
28 ing:
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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
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36 SELinux defines process types (domains) for each process running on the
37 system
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39 You can see the context of a process using the -Z option to ps
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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.
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45 The following process types are defined for passenger:
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47 passenger_t
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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.
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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.
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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.
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67 setsebool -P authlogin_nsswitch_use_ldap 1
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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.
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74 setsebool -P fips_mode 1
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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.
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82 setsebool -P httpd_run_stickshift 1
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86 If you want to allow confined applications to run with kerberos, you
87 must turn on the kerberos_enabled boolean. Enabled by default.
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89 setsebool -P kerberos_enabled 1
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93 If you want to allow system to run with NIS, you must turn on the
94 nis_enabled boolean. Disabled by default.
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96 setsebool -P nis_enabled 1
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100 If you want to allow confined applications to use nscd shared memory,
101 you must turn on the nscd_use_shm boolean. Disabled by default.
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103 setsebool -P nscd_use_shm 1
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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.
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112 passenger_log_t
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114 /var/log/passenger.*
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116 passenger_tmp_t
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119 passenger_var_lib_t
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121 /var/lib/passenger(/.*)?
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123 passenger_var_run_t
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125 /var/run/passenger(/.*)?
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127 puppet_var_lib_t
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129 /var/lib/puppet(/.*)?
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133 SELinux requires files to have an extended attribute to define the file
134 type.
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136 You can see the context of a file using the -Z option to ls
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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.
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142 STANDARD FILE CONTEXT
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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.
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149 semanage fcontext -a -t passenger_var_run_t '/srv/mypassenger_con‐
150 tent(/.*)?'
151 restorecon -R -v /srv/mypassenger_content
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153 Note: SELinux often uses regular expressions to specify labels that
154 match multiple files.
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156 The following file types are defined for passenger:
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160 passenger_exec_t
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162 - Set files with the passenger_exec_t type, if you want to transition
163 an executable to the passenger_t domain.
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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
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173 passenger_log_t
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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.
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181 passenger_tmp_t
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183 - Set files with the passenger_tmp_t type, if you want to store passen‐
184 ger temporary files in the /tmp directories.
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188 passenger_var_lib_t
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190 - Set files with the passenger_var_lib_t type, if you want to store the
191 passenger files under the /var/lib directory.
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195 passenger_var_run_t
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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.
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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.
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209 semanage fcontext can also be used to manipulate default file context
210 mappings.
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212 semanage permissive can also be used to manipulate whether or not a
213 process type is permissive.
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215 semanage module can also be used to enable/disable/install/remove pol‐
216 icy modules.
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218 semanage boolean can also be used to manipulate the booleans
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221 system-config-selinux is a GUI tool available to customize SELinux pol‐
222 icy settings.
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226 This manual page was auto-generated using sepolicy manpage .
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230 selinux(8), passenger(8), semanage(8), restorecon(8), chcon(1), sepol‐
231 icy(8), setsebool(8)
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235passenger 19-05-30 passenger_selinux(8)