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GNU/Linux |
CentOS 5.2 |
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samba_selinux(8) |
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samba_selinux − Security Enhanced Linux Policy for Samba
Security-Enhanced Linux secures the Samba server via flexible mandatory access control.
SELinux
requires files to have an extended attribute to define the
file type. Policy governs the access daemons have to these
files. If you want to share files other than home
directories, those files must be labeled samba_share_t. So
if you created a special directory /var/eng, you would need
to label the directory with the chcon tool.
chcon -t samba_share_t /var/eng
If you want to make this permanant, i.e. survive a relabel,
you must
add an entry to the file_contexts.local file.
/etc/selinux/POLICYTYPE/contexts/files/file_contexts.local
/var/eng(/.*)? system_u:object_r:samba_share_t
If you want to share files with multiple domains (Apache, FTP, rsync, Samba), you can set a file context of public_content_t and public_content_rw_t. These context allow any of the above domains to read the content. If you want a particular domain to write to the public_content_rw_t domain, you must set the appropriate boolean. allow_DOMAIN_anon_write. So for samba you would execute:
setsebool -P allow_smbd_anon_write=1
SELinux policy
is customizable based on least access required. So by
default SElinux policy turns off SELinux sharing of home
directories and the use of Samba shares from a remote
machine as a home directory.
If you are setting up this machine as a Samba server and
wish to share
the home directories, you need to set the
samba_enable_home_dirs
boolean.
setsebool -P samba_enable_home_dirs 1
If you want to use a remote
Samba server for the home directories on
this machine, you must set the use_samba_home_dirs
boolean.
setsebool -P use_samba_home_dirs 1
You can disable SELinux protection for the samba daemon by executing:
setsebool -P
smbd_disable_trans 1
service smb restart
system-config-securitylevel is
a GUI tool available to customize
SELinux policy settings.
AUTHORThis manual page was written by Dan Walsh <dwalsh@redhat.com>. SEE ALSOselinux(8), samba(7), chcon(1), setsebool(8)
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