cobblerd_selinux(8)					      SELinux Policy cobblerd					       cobblerd_selinux(8)

NAME

       cobblerd_selinux - Security Enhanced Linux Policy for the cobblerd processes

DESCRIPTION

       Security-Enhanced Linux secures the cobblerd processes via flexible mandatory access control.

       The cobblerd processes execute with the cobblerd_t SELinux type. You can check if you have these processes running by executing the ps com-
       mand with the -Z qualifier.

       For example:

       ps -eZ | grep cobblerd_t

ENTRYPOINTS

       The cobblerd_t SELinux type can be entered via the cobblerd_exec_t file type.

       The default entrypoint paths for the cobblerd_t domain are the following:

       /usr/bin/cobblerd

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  cob-
       blerd processes in as secure a method as possible.

       The following process types are defined for cobblerd:

       cobblerd_t

       Note: semanage permissive -a cobblerd_t can be used to make the process type cobblerd_t permissive. SELinux does not deny access to permis-
       sive process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANS

       SELinux policy is customizable based on least access required.  cobblerd 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 determine whether Cobbler can connect to the network using TCP, you must turn on the cobbler_can_network_connect boolean.
       Disabled by default.

       setsebool -P cobbler_can_network_connect 1

       If you want to determine whether Cobbler can access cifs file systems, you must turn on the cobbler_use_cifs boolean. Disabled by default.

       setsebool -P cobbler_use_cifs 1

       If you want to determine whether Cobbler can access nfs file systems, you must turn on the cobbler_use_nfs boolean. Disabled by default.

       setsebool -P cobbler_use_nfs 1

       If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the  authlo-
       gin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow all daemons to write corefiles to /, you must turn on the daemons_dump_core boolean. Disabled by default.

       setsebool -P daemons_dump_core 1

       If you want to enable cluster mode for daemons, you must turn on the daemons_enable_cluster_mode boolean. Enabled by default.

       setsebool -P daemons_enable_cluster_mode 1

       If you want to allow all daemons to use tcp wrappers, you must turn on the daemons_use_tcp_wrapper boolean. Disabled by default.

       setsebool -P daemons_use_tcp_wrapper 1

       If you want to allow all daemons the ability to read/write terminals, you must turn on the daemons_use_tty boolean. Disabled by default.

       setsebool -P daemons_use_tty 1

       If  you	want  to  deny	any  process  from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If you want to allow all domains to have the kernel load modules, you must turn on  the	domain_kernel_load_modules  boolean.  Disabled	by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

       If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.

       setsebool -P kerberos_enabled 1

       If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1

       If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled by default.

       setsebool -P nscd_use_shm 1

NSSWITCH DOMAIN

       If  you	want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the cobblerd_t, you must
       turn on the authlogin_nsswitch_use_ldap boolean.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow confined applications to run with kerberos for the cobblerd_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

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

MANAGED FILES

       The  SELinux  process  type  cobblerd_t can manage files labeled with the following file types.	The paths listed are the default paths for
       these file types.  Note the processes UID still need to have DAC permissions.

       cifs_t

       cluster_conf_t

	    /etc/cluster(/.*)?

       cluster_var_lib_t

	    /var/lib/pcsd(/.*)?
	    /var/lib/cluster(/.*)?
	    /var/lib/openais(/.*)?
	    /var/lib/pengine(/.*)?
	    /var/lib/corosync(/.*)?
	    /usr/lib/heartbeat(/.*)?
	    /var/lib/heartbeat(/.*)?
	    /var/lib/pacemaker(/.*)?

       cluster_var_run_t

	    /var/run/crm(/.*)?
	    /var/run/cman_.*
	    /var/run/rsctmp(/.*)?
	    /var/run/aisexec.*
	    /var/run/heartbeat(/.*)?
	    /var/run/cpglockd.pid
	    /var/run/corosync.pid
	    /var/run/rgmanager.pid
	    /var/run/cluster/rgmanager.sk

       cobbler_tmp_t

       cobbler_var_lib_t

	    /var/lib/cobbler(/.*)?
	    /var/www/cobbler(/.*)?
	    /var/cache/cobbler(/.*)?
	    /var/lib/tftpboot/etc(/.*)?
	    /var/lib/tftpboot/ppc(/.*)?
	    /var/lib/tftpboot/grub(/.*)?
	    /var/lib/tftpboot/s390x(/.*)?
	    /var/lib/tftpboot/images(/.*)?
	    /var/lib/tftpboot/pxelinux.cfg(/.*)?
	    /var/lib/tftpboot/yaboot
	    /var/lib/tftpboot/memdisk
	    /var/lib/tftpboot/menu.c32
	    /var/lib/tftpboot/pxelinux.0

       dhcp_etc_t

	    /etc/dhcpc.*
	    /etc/dhcp3?(/.*)?
	    /etc/dhcpd(6)?.conf
	    /etc/dhcp3?/dhclient.*
	    /etc/dhclient.*conf
	    /etc/dhcp/dhcpd(6)?.conf
	    /etc/dhclient-script

       dnsmasq_etc_t

	    /etc/dnsmasq.d(/.*)?
	    /etc/dnsmasq.conf

       named_conf_t

	    /etc/rndc.*
	    /etc/unbound(/.*)?
	    /var/named/chroot(/.*)?
	    /etc/named.rfc1912.zones
	    /var/named/chroot/etc/named.rfc1912.zones
	    /etc/named.conf
	    /var/named/named.ca
	    /etc/named.root.hints
	    /var/named/chroot/etc/named.conf
	    /etc/named.caching-nameserver.conf
	    /var/named/chroot/var/named/named.ca
	    /var/named/chroot/etc/named.root.hints
	    /var/named/chroot/etc/named.caching-nameserver.conf

       named_zone_t

	    /var/named(/.*)?
	    /var/named/chroot/var/named(/.*)?

       net_conf_t

	    /etc/hosts[^/]*
	    /etc/yp.conf.*
	    /etc/denyhosts.*
	    /etc/hosts.deny.*
	    /etc/resolv.conf.*
	    /etc/sysconfig/networking(/.*)?
	    /etc/sysconfig/network-scripts(/.*)?
	    /etc/sysconfig/network-scripts/.*resolv.conf
	    /etc/ethers
	    /etc/ntp.conf

       nfs_t

       public_content_rw_t

	    /var/spool/abrt-upload(/.*)?

       root_t

	    /
	    /initrd

       rsync_etc_t

	    /etc/rsyncd.conf

       systemd_passwd_var_run_t

	    /var/run/systemd/ask-password(/.*)?
	    /var/run/systemd/ask-password-block(/.*)?

       tftpd_etc_t

	    /etc/xinetd.d/tftp

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.

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the cobblerd, if you wanted to store files with these types in a diffent paths, you need to exe-
       cute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.

       semanage fcontext -a -t cobblerd_exec_t '/srv/cobblerd/content(/.*)?'
       restorecon -R -v /srv/mycobblerd_content

       Note: SELinux often uses regular expressions to specify labels that match multiple files.

       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 transition an executable to the cobblerd_initrc_t domain.

       Note: File context can be temporarily modified with the chcon command.  If you want to permanently change the file context you need to  use
       the semanage fcontext command.  This will modify the SELinux labeling database.	You will need to use restorecon to apply the labels.

SHARING 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 pub-
       lic_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  pub-
       lic_content_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/cobblerd/incoming by adding the public_content_rw_t type to the directory	and  by  restoring
       the file type.  You also need to turn on the cobblerd_anon_write boolean.

       semanage fcontext -a -t public_content_rw_t "/var/cobblerd/incoming(/.*)?"
       restorecon -F -R -v /var/cobblerd/incoming
       setsebool -P cobblerd_anon_write 1

       If  you	want  to  determine  whether  Cobbler  can  modify public files used for public file transfer services., you must turn on the cob-
       bler_anon_write boolean.

       setsebool -P cobbler_anon_write 1

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 policy 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 policy settings.

AUTHOR

       This manual page was auto-generated using sepolicy manpage .

SEE ALSO

       selinux(8), cobblerd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)

cobblerd							     14-06-10						       cobblerd_selinux(8)