samba_unconfined_script_selinux(8)

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NAME

6       samba_unconfined_script_selinux  -  Security  Enhanced Linux Policy for
7       the samba_unconfined_script processes
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DESCRIPTION

10       Security-Enhanced Linux secures the  samba_unconfined_script  processes
11       via flexible mandatory access control.
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13       The  samba_unconfined_script  processes  execute  with the samba_uncon‐
14       fined_script_t SELinux type. You can check if you have these  processes
15       running by executing the ps command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep samba_unconfined_script_t
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ENTRYPOINTS

24       The  samba_unconfined_script_t  SELinux  type  can  be  entered via the
25       samba_unconfined_script_exec_t, shell_exec_t file types.
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27       The default entrypoint paths for the  samba_unconfined_script_t  domain
28       are the following:
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30       /var/lib/samba/scripts(/.*)?,   /bin/d?ash,   /bin/ksh.*,   /bin/zsh.*,
31       /usr/bin/d?ash, /usr/bin/ksh.*,  /usr/bin/zsh.*,  /bin/esh,  /bin/bash,
32       /bin/fish,  /bin/mksh,  /bin/sash,  /bin/tcsh,  /bin/yash,  /bin/bash2,
33       /usr/bin/esh,     /sbin/nologin,     /usr/bin/bash,      /usr/bin/fish,
34       /usr/bin/mksh,     /usr/bin/sash,     /usr/bin/tcsh,     /usr/bin/yash,
35       /usr/bin/bash2,  /usr/sbin/sesh,   /usr/sbin/smrsh,   /usr/bin/scponly,
36       /usr/libexec/sesh,        /usr/sbin/nologin,        /usr/bin/git-shell,
37       /usr/sbin/scponlyc,  /usr/libexec/sudo/sesh,   /usr/bin/cockpit-bridge,
38       /usr/libexec/cockpit-agent, /usr/libexec/git-core/git-shell
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PROCESS TYPES

41       SELinux defines process types (domains) for each process running on the
42       system
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44       You can see the context of a process using the -Z option to ps
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46       Policy governs the access confined processes have  to  files.   SELinux
47       samba_unconfined_script policy is very flexible allowing users to setup
48       their samba_unconfined_script processes in as secure a method as possi‐
49       ble.
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51       The following process types are defined for samba_unconfined_script:
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53       samba_unconfined_script_t
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55       Note:  semanage  permissive -a samba_unconfined_script_t can be used to
56       make the process  type  samba_unconfined_script_t  permissive.  SELinux
57       does  not deny access to permissive process types, but the AVC (SELinux
58       denials) messages are still generated.
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BOOLEANS

62       SELinux  policy  is  customizable  based  on  least  access   required.
63       samba_unconfined_script  policy  is  extremely flexible and has several
64       booleans that allow you to manipulate the policy and  run  samba_uncon‐
65       fined_script with the tightest access possible.
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69       If you want to deny user domains applications to map a memory region as
70       both executable and writable, this  is  dangerous  and  the  executable
71       should be reported in bugzilla, you must turn on the deny_execmem bool‐
72       ean. Disabled by default.
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74       setsebool -P deny_execmem 1
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78       If you want to control the ability to mmap a low area  of  the  address
79       space,  as  configured  by /proc/sys/vm/mmap_min_addr, you must turn on
80       the mmap_low_allowed boolean. Disabled by default.
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82       setsebool -P mmap_low_allowed 1
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86       If you want to disable kernel module loading, you must turn on the  se‐
87       cure_mode_insmod boolean. Disabled by default.
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89       setsebool -P secure_mode_insmod 1
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93       If  you  want to allow unconfined executables to make their heap memory
94       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
95       badly  coded  executable, but could indicate an attack. This executable
96       should be reported in bugzilla, you must turn  on  the  selinuxuser_ex‐
97       echeap boolean. Disabled by default.
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99       setsebool -P selinuxuser_execheap 1
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103       If  you  want  to allow unconfined executables to make their stack exe‐
104       cutable.  This should never, ever be necessary.  Probably  indicates  a
105       badly  coded  executable, but could indicate an attack. This executable
106       should be reported in bugzilla, you must turn on the  selinuxuser_exec‐
107       stack boolean. Enabled by default.
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109       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

114       The SELinux process type samba_unconfined_script_t can manage files la‐
115       beled with the following file types.  The paths listed are the  default
116       paths  for these file types.  Note the processes UID still need to have
117       DAC permissions.
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119       file_type
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121            all files on the system
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FILE CONTEXTS

125       SELinux requires files to have an extended attribute to define the file
126       type.
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128       You can see the context of a file using the -Z option to ls
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130       Policy  governs  the  access  confined  processes  have to these files.
131       SELinux samba_unconfined_script policy is very flexible allowing  users
132       to  setup their samba_unconfined_script processes in as secure a method
133       as possible.
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135       STANDARD FILE CONTEXT
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137       SELinux defines the file context types for the samba_unconfined_script,
138       if you wanted to store files with these types in a different paths, you
139       need to execute the semanage command to specify alternate labeling  and
140       then use restorecon to put the labels on disk.
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142       semanage  fcontext -a -t samba_unconfined_script_exec_t '/srv/samba_un‐
143       confined_script/content(/.*)?'
144       restorecon -R -v /srv/mysamba_unconfined_script_content
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146       Note: SELinux often uses regular expressions  to  specify  labels  that
147       match multiple files.
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149       The following file types are defined for samba_unconfined_script:
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153       samba_unconfined_script_exec_t
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155       -  Set  files with the samba_unconfined_script_exec_t type, if you want
156       to transition an executable to the samba_unconfined_script_t domain.
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160       Note: File context can be temporarily modified with the chcon  command.
161       If  you want to permanently change the file context you need to use the
162       semanage fcontext command.  This will modify the SELinux labeling data‐
163       base.  You will need to use restorecon to apply the labels.
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COMMANDS

167       semanage  fcontext  can also be used to manipulate default file context
168       mappings.
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170       semanage permissive can also be used to manipulate  whether  or  not  a
171       process type is permissive.
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173       semanage  module can also be used to enable/disable/install/remove pol‐
174       icy modules.
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176       semanage boolean can also be used to manipulate the booleans
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179       system-config-selinux is a GUI tool available to customize SELinux pol‐
180       icy settings.
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AUTHOR

184       This manual page was auto-generated using sepolicy manpage .
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