cobblerd_selinux(8) cobblerd SELinux Policy documentation cobblerd_selinux(8)NAMEcobblerd_selinux - Security Enhanced Linux Policy for the cobblerd pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the cobblerd processes via flexible
mandatory access control.
BOOLEANS
SELinux policy is customizable based on least access required. cob‐
blerd policy is extremely flexible and has several booleans that allow
you to manipulate the policy and run cobblerd with the tightest access
possible.
If you want to allow Cobbler to connect to the network using TCP, you
must turn on the cobbler_can_network_connect boolean.
setsebool -P cobbler_can_network_connect 1
If you want to allow Cobbler to access nfs file systems, you must turn
on the cobbler_use_nfs boolean.
setsebool -P cobbler_use_nfs 1
If you want to allow HTTPD scripts and modules to connect to cobbler
over the network, you must turn on the httpd_can_network_connect_cob‐
bler boolean.
setsebool -P httpd_can_network_connect_cobbler 1
If you want to allow Cobbler to access cifs file systems, you must turn
on the cobbler_use_cifs boolean.
setsebool -P cobbler_use_cifs 1
NSSWITCH DOMAINSHARING FILES
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_con‐
tent_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_con‐
tent_rw_t domain, you must set the appropriate boolean.
Allow cobblerd servers to read the /var/cobblerd directory by adding
the public_content_t file type to the directory and by restoring the
file type.
semanage fcontext -a -t public_content_t "/var/cobblerd(/.*)?"
restorecon -F -R -v /var/cobblerd
Allow cobblerd servers to read and write /var/tmp/incoming by adding
the public_content_rw_t type to the directory and by restoring the file
type. This also requires the allow_cobblerdd_anon_write boolean to be
set.
semanage fcontext -a-t public_content_rw_t "/var/cobblerd/incom‐
ing(/.*)?"
restorecon -F -R -v /var/cobblerd/incoming
If you want to allow Cobbler to modify public files used for public
file transfer services., you must turn on the cobbler_anon_write bool‐
ean.
setsebool -P cobbler_anon_write 1
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file
type.
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files.
SELinux cobblerd policy is very flexible allowing users to setup their
cobblerd processes in as secure a method as possible.
The following file types are defined for cobblerd:
cobblerd_exec_t
- Set files with the cobblerd_exec_t type, if you want to transition an
executable to the cobblerd_t domain.
cobblerd_initrc_exec_t
- Set files with the cobblerd_initrc_exec_t type, if you want to tran‐
sition an executable to the cobblerd_initrc_t domain.
cobblerd_unit_file_t
- Set files with the cobblerd_unit_file_t type, if you want to treat
the files as cobblerd unit content.
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
PORT TYPES
SELinux defines port types to represent TCP and UDP ports.
You can see the types associated with a port by using the following
command:
semanage port -l
Policy governs the access confined processes have to these ports.
SELinux cobblerd policy is very flexible allowing users to setup their
cobblerd processes in as secure a method as possible.
The following port types are defined for cobblerd:
cobbler_port_t
Default Defined Ports:
tcp 25151
PROCESS TYPES
SELinux defines process types (domains) for each process running on the
system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
cobblerd policy is very flexible allowing users to setup their cobblerd
processes in as secure a method as possible.
The following process types are defined for cobblerd:
cobblerd_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process
type permissive. Permissive process types are not denied access by
SELinux. AVC messages will still be generated.
COMMANDS
semanage fcontext can also be used to manipulate default file context
mappings.
semanage permissive can also be used to manipulate whether or not a
process type is permissive.
semanage module can also be used to enable/disable/install/remove pol‐
icy modules.
semanage port can also be used to manipulate the port definitions
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), cobblerd(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com cobblerd cobblerd_selinux(8)