canna_selinux(8) SELinux Policy canna canna_selinux(8)NAMEcanna_selinux - Security Enhanced Linux Policy for the canna processes
Security-Enhanced Linux secures the canna processes via flexible manda‐
tory access control.
The canna processes execute with the canna_t SELinux type. You can
check if you have these processes running by executing the ps command
with the -Z qualifier.
ps -eZ | grep canna_t
The canna_t SELinux type can be entered via the canna_exec_t file type.
The default entrypoint paths for the canna_t domain are the following:
/usr/bin/catdic, /usr/sbin/jserver, /usr/bin/cannaping, /usr/sbin/can‐
SELinux defines process types (domains) for each process running on the
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
canna policy is very flexible allowing users to setup their canna pro‐
cesses in as secure a method as possible.
The following process types are defined for canna:
Note: semanage permissive -a canna_t can be used to make the process
type canna_t permissive. SELinux does not deny access to permissive
process types, but the AVC (SELinux denials) messages are still gener‐
SELinux policy is customizable based on least access required. canna
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run canna with the tightest access possible.
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
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
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 system to run with NIS, you must turn on the
nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
The SELinux process type canna_t can manage files labeled with the fol‐
lowing file types. The paths listed are the default paths for these
file types. Note the processes UID still need to have DAC permissions.
SELinux requires files to have an extended attribute to define the file
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 canna policy is very flexible allowing users to setup their
canna processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the canna, if you wanted to
store files with these types in a diffent paths, you need to execute
the semanage command to sepecify alternate labeling and then use
restorecon to put the labels on disk.
semanage fcontext -a -t canna_exec_t '/srv/canna/content(/.*)?'
restorecon -R -v /srv/mycanna_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for canna:
- Set files with the canna_exec_t type, if you want to transition an
executable to the canna_t domain.
/usr/bin/catdic, /usr/sbin/jserver, /usr/bin/cannaping,
- Set files with the canna_initrc_exec_t type, if you want to transi‐
tion an executable to the canna_initrc_t domain.
- Set files with the canna_log_t type, if you want to treat the data as
canna log data, usually stored under the /var/log directory.
- Set files with the canna_var_lib_t type, if you want to store the
canna files under the /var/lib directory.
- Set files with the canna_var_run_t type, if you want to store the
canna files under the /run or /var/run directory.
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 data‐
base. You will need to use restorecon to apply the labels.
semanage fcontext can also be used to manipulate default file context
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‐
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
This manual page was auto-generated using sepolicy manpage .
SEE ALSOselinux(8), canna(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
, setsebool(8)canna 14-05-08 canna_selinux(8)