unconfined_selinux(8)

1unconfined_selinux(8)unconfined SELinux Policy documentatiounnconfined_selinux(8)
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NAME

6       unconfined_r - Unconfined user role - Security Enhanced Linux Policy
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DESCRIPTION

10       SELinux  supports  Roles  Based Access Control (RBAC), some Linux roles
11       are login roles, while other roles need to be transition into.
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13       Note: Examples in this man page will use the staff_u SELinux user.
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15       Non login roles are usually used for administrative tasks. For example,
16       tasks  that  require root privileges.  Roles control which types a user
17       can run processes with. Roles often  have  default  types  assigned  to
18       them.
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20       The default type for the unconfined_r role is unconfined_t.
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22       The newrole program to transition directly to this role.
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24       newrole -r unconfined_r -t unconfined_t
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26       sudo is the preferred method to do transition from one role to another.
27       You setup sudo to transition to unconfined_r by adding a  similar  line
28       to the /etc/sudoers file.
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30       USERNAME ALL=(ALL) ROLE=unconfined_r TYPE=unconfined_t COMMAND
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32       sudo will run COMMAND as staff_u:unconfined_r:unconfined_t:LEVEL
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34       When  using  a  non  login role, you need to setup SELinux so that your
35       SELinux user can reach unconfined_r role.
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37       Execute the following to see all of the assigned SELinux roles:
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39       semanage user -l
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41       You need to add unconfined_r to the staff_u user.  You could setup  the
42       staff_u  user  to  be  able to use the unconfined_r role with a command
43       like:
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45       $ semanage user -m -R 'staff_r system_r unconfined_r' staff_u
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BOOLEANS

50       SELinux policy is customizable based on least access required.   uncon‐
51       fined  policy is extremely flexible and has several booleans that allow
52       you to manipulate the policy and run unconfined with the  tightest  ac‐
53       cess possible.
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57       If  you  want to allow a unconfined user to dynamically transition to a
58       new context using setcon, you must turn on the  unconfined_dyntrans_all
59       boolean. Disabled by default.
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61       setsebool -P unconfined_dyntrans_all 1
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65       If  you  want  to  allow  unconfined users to transition to the Mozilla
66       plugin domain when running xulrunner plugin-container, you must turn on
67       the unconfined_mozilla_plugin_transition boolean. Enabled by default.
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69       setsebool -P unconfined_mozilla_plugin_transition 1
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73       If you want to determine whether crond can execute jobs in the user do‐
74       main as opposed to the the generic cronjob domain, you must turn on the
75       cron_userdomain_transition boolean. Enabled by default.
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77       setsebool -P cron_userdomain_transition 1
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81       If you want to deny user domains applications to map a memory region as
82       both executable and writable, this  is  dangerous  and  the  executable
83       should be reported in bugzilla, you must turn on the deny_execmem bool‐
84       ean. Disabled by default.
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86       setsebool -P deny_execmem 1
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90       If you want to control the ability to mmap a low area  of  the  address
91       space,  as  configured  by /proc/sys/vm/mmap_min_addr, you must turn on
92       the mmap_low_allowed boolean. Disabled by default.
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94       setsebool -P mmap_low_allowed 1
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98       If you want to allow system to run with  NIS,  you  must  turn  on  the
99       nis_enabled boolean. Disabled by default.
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101       setsebool -P nis_enabled 1
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105       If  you want to disable kernel module loading, you must turn on the se‐
106       cure_mode_insmod boolean. Disabled by default.
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108       setsebool -P secure_mode_insmod 1
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112       If you want to allow unconfined executables to make their  heap  memory
113       executable.   Doing  this  is  a  really bad idea. Probably indicates a
114       badly coded executable, but could indicate an attack.  This  executable
115       should  be  reported  in bugzilla, you must turn on the selinuxuser_ex‐
116       echeap boolean. Disabled by default.
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118       setsebool -P selinuxuser_execheap 1
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122       If you want to allow unconfined executables to make  their  stack  exe‐
123       cutable.   This  should  never, ever be necessary. Probably indicates a
124       badly coded executable, but could indicate an attack.  This  executable
125       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
126       stack boolean. Enabled by default.
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128       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

133       The SELinux process type unconfined_t can manage files labeled with the
134       following file types.  The paths listed are the default paths for these
135       file types.  Note the processes UID still need to have DAC permissions.
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137       file_type
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139            all files on the system
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COMMANDS

143       semanage fcontext can also be used to manipulate default  file  context
144       mappings.
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146       semanage  permissive  can  also  be used to manipulate whether or not a
147       process type is permissive.
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149       semanage module can also be used to enable/disable/install/remove  pol‐
150       icy modules.
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152       semanage boolean can also be used to manipulate the booleans
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155       system-config-selinux is a GUI tool available to customize SELinux pol‐
156       icy settings.
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AUTHOR

160       This manual page was auto-generated using sepolicy manpage .
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NAME

DESCRIPTION

BOOLEANS

MANAGED FILES

COMMANDS

AUTHOR

SEE ALSO