secadm_selinux(8)

1secadm_selinux(8)     secadm SELinux Policy documentation    secadm_selinux(8)
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NAME

6       secadm_r - Security administrator 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 secadm_r role is secadm_t.
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22       The newrole program to transition directly to this role.
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24       newrole -r secadm_r -t secadm_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 secadm_r by adding a  similar  line  to
28       the /etc/sudoers file.
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30       USERNAME ALL=(ALL) ROLE=secadm_r TYPE=secadm_t COMMAND
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32       sudo will run COMMAND as staff_u:secadm_r:secadm_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 secadm_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 secadm_r to the staff_u  user.   You  could  setup  the
42       staff_u user to be able to use the secadm_r role with a command like:
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44       $ semanage user -m -R 'staff_r system_r secadm_r' staff_u
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48       SELinux  policy also controls which roles can transition to a different
49       role.  You can list these rules using the following command.
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51       search --role_allow
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53       SELinux policy allows the sysadm_r, staff_r, auditadm_r roles can tran‐
54       sition to the secadm_r role.
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BOOLEANS

59       SELinux  policy is customizable based on least access required.  secadm
60       policy is extremely flexible and has several booleans that allow you to
61       manipulate the policy and run secadm with the tightest access possible.
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65       If you want to allow users to resolve user passwd entries directly from
66       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
67       gin_nsswitch_use_ldap boolean. Disabled by default.
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69       setsebool -P authlogin_nsswitch_use_ldap 1
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73       If you want to deny user domains applications to map a memory region as
74       both executable and writable, this  is  dangerous  and  the  executable
75       should be reported in bugzilla, you must turn on the deny_execmem bool‐
76       ean. Enabled by default.
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78       setsebool -P deny_execmem 1
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82       If you want to deny any process from ptracing or  debugging  any  other
83       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
84       default.
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86       setsebool -P deny_ptrace 1
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90       If you want to allow all domains to execute in fips_mode, you must turn
91       on the fips_mode boolean. Enabled by default.
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93       setsebool -P fips_mode 1
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97       If  you  want  to allow confined applications to run with kerberos, you
98       must turn on the kerberos_enabled boolean. Disabled by default.
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100       setsebool -P kerberos_enabled 1
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104       If you want to allow system to run with  NIS,  you  must  turn  on  the
105       nis_enabled boolean. Disabled by default.
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107       setsebool -P nis_enabled 1
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111       If  you  want to allow confined applications to use nscd shared memory,
112       you must turn on the nscd_use_shm boolean. Disabled by default.
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114       setsebool -P nscd_use_shm 1
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118       If you want to allow unconfined executables to make  their  stack  exe‐
119       cutable.   This  should  never, ever be necessary. Probably indicates a
120       badly coded executable, but could indicate an attack.  This  executable
121       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
122       stack boolean. Disabled by default.
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124       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

129       The SELinux process type secadm_t can manage  files  labeled  with  the
130       following file types.  The paths listed are the default paths for these
131       file types.  Note the processes UID still need to have DAC permissions.
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133       boolean_type
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136       default_context_t
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138            /etc/selinux/([^/]*/)?contexts(/.*)?
139            /root/.default_contexts
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141       dosfs_t
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144       etc_runtime_t
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146            /[^/]+
147            /etc/mtab.*
148            /etc/blkid(/.*)?
149            /etc/nologin.*
150            /etc/.fstab.hal..+
151            /halt
152            /fastboot
153            /poweroff
154            /.autofsck
155            /etc/cmtab
156            /forcefsck
157            /.suspended
158            /fsckoptions
159            /.autorelabel
160            /etc/.updated
161            /var/.updated
162            /etc/killpower
163            /etc/nohotplug
164            /etc/securetty
165            /etc/ioctl.save
166            /etc/fstab.REVOKE
167            /etc/network/ifstate
168            /etc/sysconfig/hwconf
169            /etc/ptal/ptal-printd-like
170            /etc/xorg.conf.d/00-system-setup-keyboard.conf
171            /etc/X11/xorg.conf.d/00-system-setup-keyboard.conf
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173       file_context_t
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175            /etc/selinux/([^/]*/)?contexts/files(/.*)?
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177       screen_home_t
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179            /root/.screen(/.*)?
180            /home/[^/]+/.screen(/.*)?
181            /home/[^/]+/.screenrc
182            /home/[^/]+/.tmux.conf
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184       security_t
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186            /selinux
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188       selinux_config_t
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190            /etc/selinux(/.*)?
191            /etc/selinux/([^/]*/)?seusers
192            /etc/selinux/([^/]*/)?users(/.*)?
193            /etc/selinux/([^/]*/)?setrans.conf
194            /var/lib/sepolgen(/.*)?
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196       selinux_login_config_t
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198            /etc/selinux/([^/]*/)?logins(/.*)?
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200       semanage_store_t
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202            /etc/selinux/([^/]*/)?policy(/.*)?
203            /etc/selinux/(minimum|mls|targeted)/active(/.*)?
204            /etc/selinux/([^/]*/)?modules/(active|tmp|previous)(/.*)?
205            /var/lib/selinux(/.*)?
206            /etc/share/selinux/mls(/.*)?
207            /etc/share/selinux/targeted(/.*)?
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209       systemd_passwd_var_run_t
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211            /var/run/systemd/ask-password(/.*)?
212            /var/run/systemd/ask-password-block(/.*)?
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214       user_tmp_type
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216            all user tmp files
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COMMANDS

220       semanage fcontext can also be used to manipulate default  file  context
221       mappings.
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223       semanage  permissive  can  also  be used to manipulate whether or not a
224       process type is permissive.
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226       semanage module can also be used to enable/disable/install/remove  pol‐
227       icy modules.
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229       semanage boolean can also be used to manipulate the booleans
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232       system-config-selinux is a GUI tool available to customize SELinux pol‐
233       icy settings.
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AUTHOR

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

DESCRIPTION

BOOLEANS

MANAGED FILES

COMMANDS

AUTHOR

SEE ALSO