1getty_selinux(8) SELinux Policy getty getty_selinux(8)
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6 getty_selinux - Security Enhanced Linux Policy for the getty processes
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9 Security-Enhanced Linux secures the getty processes via flexible manda‐
10 tory access control.
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12 The getty processes execute with the getty_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
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16 For example:
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18 ps -eZ | grep getty_t
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23 The getty_t SELinux type can be entered via the getty_exec_t file type.
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25 The default entrypoint paths for the getty_t domain are the following:
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27 /sbin/.*getty, /usr/sbin/.*getty
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 getty policy is very flexible allowing users to setup their getty pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for getty:
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41 getty_t
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43 Note: semanage permissive -a getty_t can be used to make the process
44 type getty_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. getty
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run getty with the tightest access possible.
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56 If you want to allow users to resolve user passwd entries directly from
57 ldap rather then using a sssd server, you must turn on the authlo‐
58 gin_nsswitch_use_ldap boolean. Disabled by default.
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60 setsebool -P authlogin_nsswitch_use_ldap 1
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64 If you want to allow all domains to execute in fips_mode, you must turn
65 on the fips_mode boolean. Enabled by default.
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67 setsebool -P fips_mode 1
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71 If you want to allow confined applications to run with kerberos, you
72 must turn on the kerberos_enabled boolean. Disabled by default.
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74 setsebool -P kerberos_enabled 1
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78 If you want to allow logging in and using the system from /dev/console,
79 you must turn on the login_console_enabled boolean. Enabled by default.
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81 setsebool -P login_console_enabled 1
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85 If you want to allow system to run with NIS, you must turn on the
86 nis_enabled boolean. Disabled by default.
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88 setsebool -P nis_enabled 1
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92 If you want to allow confined applications to use nscd shared memory,
93 you must turn on the nscd_use_shm boolean. Disabled by default.
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95 setsebool -P nscd_use_shm 1
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100 The SELinux process type getty_t can manage files labeled with the fol‐
101 lowing file types. The paths listed are the default paths for these
102 file types. Note the processes UID still need to have DAC permissions.
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104 getty_lock_t
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107 getty_log_t
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109 /var/log/mgetty.*.log.*
110 /var/log/vgetty.*.log.*
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112 getty_tmp_t
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115 getty_var_run_t
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117 /var/spool/fax(/.*)?
118 /var/spool/voice(/.*)?
119 /var/run/mgetty.pid.*
120 /var/run/agetty.reload.*
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122 initrc_var_run_t
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124 /var/run/utmp
125 /var/run/random-seed
126 /var/run/runlevel.dir
127 /var/run/setmixer_flag
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129 lockdev_lock_t
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131 /var/lock/lockdev(/.*)?
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133 var_run_t
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135 /run/.*
136 /var/run/.*
137 /run
138 /var/run
139 /var/run
140 /var/spool/postfix/pid
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142 wtmp_t
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144 /var/log/wtmp.*
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148 SELinux requires files to have an extended attribute to define the file
149 type.
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151 You can see the context of a file using the -Z option to ls
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153 Policy governs the access confined processes have to these files.
154 SELinux getty policy is very flexible allowing users to setup their
155 getty processes in as secure a method as possible.
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157 STANDARD FILE CONTEXT
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159 SELinux defines the file context types for the getty, if you wanted to
160 store files with these types in a diffent paths, you need to execute
161 the semanage command to sepecify alternate labeling and then use
162 restorecon to put the labels on disk.
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164 semanage fcontext -a -t getty_unit_file_t '/srv/mygetty_content(/.*)?'
165 restorecon -R -v /srv/mygetty_content
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167 Note: SELinux often uses regular expressions to specify labels that
168 match multiple files.
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170 The following file types are defined for getty:
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174 getty_etc_t
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176 - Set files with the getty_etc_t type, if you want to store getty files
177 in the /etc directories.
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181 getty_exec_t
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183 - Set files with the getty_exec_t type, if you want to transition an
184 executable to the getty_t domain.
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187 Paths:
188 /sbin/.*getty, /usr/sbin/.*getty
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191 getty_lock_t
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193 - Set files with the getty_lock_t type, if you want to treat the files
194 as getty lock data, stored under the /var/lock directory
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198 getty_log_t
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200 - Set files with the getty_log_t type, if you want to treat the data as
201 getty log data, usually stored under the /var/log directory.
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204 Paths:
205 /var/log/mgetty.*.log.*, /var/log/vgetty.*.log.*
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208 getty_tmp_t
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210 - Set files with the getty_tmp_t type, if you want to store getty tem‐
211 porary files in the /tmp directories.
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215 getty_unit_file_t
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217 - Set files with the getty_unit_file_t type, if you want to treat the
218 files as getty unit content.
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222 getty_var_run_t
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224 - Set files with the getty_var_run_t type, if you want to store the
225 getty files under the /run or /var/run directory.
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228 Paths:
229 /var/spool/fax(/.*)?, /var/spool/voice(/.*)?,
230 /var/run/mgetty.pid.*, /var/run/agetty.reload.*
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233 Note: File context can be temporarily modified with the chcon command.
234 If you want to permanently change the file context you need to use the
235 semanage fcontext command. This will modify the SELinux labeling data‐
236 base. You will need to use restorecon to apply the labels.
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240 semanage fcontext can also be used to manipulate default file context
241 mappings.
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243 semanage permissive can also be used to manipulate whether or not a
244 process type is permissive.
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246 semanage module can also be used to enable/disable/install/remove pol‐
247 icy modules.
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249 semanage boolean can also be used to manipulate the booleans
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252 system-config-selinux is a GUI tool available to customize SELinux pol‐
253 icy settings.
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257 This manual page was auto-generated using sepolicy manpage .
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261 selinux(8), getty(8), semanage(8), restorecon(8), chcon(1), sepol‐
262 icy(8), setsebool(8)
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266getty 19-12-02 getty_selinux(8)