Content-type: text/html Manpage of rshd_selinux

rshd_selinux

Section: rshd SELinux Policy documentation (8)
Updated: rshd
Index Return to Main Contents
 

NAME

rshd_selinux - Security Enhanced Linux Policy for the rshd processes  

DESCRIPTION

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

 

NSSWITCH DOMAIN

If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the rshd_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 rshd_t, you must turn on the kerberos_enabled boolean.

setsebool -P kerberos_enabled 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 lsP Policy governs the access confined processes have to these files. SELinux rshd policy is very flexible allowing users to setup their rshd processes in as secure a method as possible.

The following file types are defined for rshd:

rshd_exec_t

- Set files with the rshd_exec_t type, if you want to transition an executable to the rshd_t domain.


Paths:
/usr/sbin/in.rshd, /usr/kerberos/sbin/kshd, /usr/sbin/in.rexecd

rshd_keytab_t

- Set files with the rshd_keytab_t type, if you want to treat the files as kerberos keytab files.

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.

 

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 rshd policy is very flexible allowing users to setup their rshd processes in as secure a method as possible.

The following port types are defined for rshd:

rsh_port_t

Default Defined Ports: tcp 514

 

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 psP Policy governs the access confined processes have to files. SELinux rshd policy is very flexible allowing users to setup their rshd processes in as secure a method as possible.

The following process types are defined for rshd:

rshd_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.

 

MANAGED FILES

The SELinux user type rshd_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.


auth_cache_t

        /var/cache/coolkey(/.*)?


auth_home_t

        /root/.google_authenticator

       /root/.google_authenticator~

       /home/[^/]*/.google_authenticator

       /home/[^/]*/.google_authenticator~


cgroup_t

        /cgroup

       /sys/fs/cgroup


faillog_t

        /var/log/btmp.*

       /var/run/faillock(/.*)?

       /var/log/faillog

       /var/log/tallylog


initrc_var_run_t

        /var/run/utmp

       /var/run/random-seed

       /var/run/runlevel.dir

       /var/run/setmixer_flag


krb5_host_rcache_t

        /var/cache/krb5rcache(/.*)?

       /var/tmp/nfs_0

       /var/tmp/host_0

       /var/tmp/imap_0

       /var/tmp/HTTP_23

       /var/tmp/HTTP_48

       /var/tmp/ldap_55

       /var/tmp/ldap_487

       /var/tmp/ldapmap1_0


lastlog_t

        /var/log/lastlog


pam_var_run_t

        /var/(db|lib|adm)/sudo(/.*)?

       /var/run/sudo(/.*)?

       /var/run/sepermit(/.*)?

       /var/run/pam_mount(/.*)?


pcscd_var_run_t

        /var/run/pcscd(


 

Index

NAME
DESCRIPTION
NSSWITCH DOMAIN
FILE CONTEXTS
PORT TYPES
PROCESS TYPES
MANAGED FILES

This document was created by man2html, using the manual pages.
Time: 19:34:42 GMT, September 30, 2012