tor_selinux(8) tor SELinux Policy documentation tor_selinux(8)NAMEtor_selinux - Security Enhanced Linux Policy for the tor processes
DESCRIPTION
Security-Enhanced Linux secures the tor processes via flexible manda‐
tory access control.
BOOLEANS
SELinux policy is customizable based on least access required. tor
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run tor with the tightest access possible.
If you want to allow tor daemon to bind tcp sockets to all unreserved
ports, you must turn on the tor_bind_all_unreserved_ports boolean.
setsebool -P tor_bind_all_unreserved_ports 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the tor_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
tor_t, you must turn on the allow_kerberos boolean.
setsebool -P allow_kerberos 1
If you want to allow system to run with NI for the tor_t, you must turn
on the allow_ypbind boolean.
setsebool -P allow_ypbind 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 tor policy is very flexible allowing users to setup their tor
processes in as secure a method as possible.
The following file types are defined for tor:
tor_etc_t
- Set files with the tor_etc_t type, if you want to store tor files in
the /etc directories.
tor_exec_t
- Set files with the tor_exec_t type, if you want to transition an exe‐
cutable to the tor_t domain.
Paths:
/usr/sbin/tor, /usr/bin/tor
tor_initrc_exec_t
- Set files with the tor_initrc_exec_t type, if you want to transition
an executable to the tor_initrc_t domain.
tor_unit_file_t
- Set files with the tor_unit_file_t type, if you want to treat the
files as tor unit content.
tor_var_lib_t
- Set files with the tor_var_lib_t type, if you want to store the tor
files under the /var/lib directory.
Paths:
/var/lib/tor(/.*)?, /var/lib/tor-data(/.*)?
tor_var_log_t
- Set files with the tor_var_log_t type, if you want to treat the data
as tor var log data, usually stored under the /var/log directory.
tor_var_run_t
- Set files with the tor_var_run_t type, if you want to store the tor
files under the /run directory.
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 tor policy is very flexible allowing users to setup their tor
processes in as secure a method as possible.
The following port types are defined for tor:
tor_port_t
Default Defined Ports:
tcp 6969,9001,9030,9051
tor_socks_port_t
Default Defined Ports:
tcp 9050
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
tor policy is very flexible allowing users to setup their tor processes
in as secure a method as possible.
The following process types are defined for tor:
tor_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), tor(8), semanage(8), restorecon(8), chcon(1) , setsebool(8)dwalsh@redhat.com tor tor_selinux(8)
