pppd_selinux(8) pppd SELinux Policy documentation pppd_selinux(8)NAMEpppd_selinux - Security Enhanced Linux Policy for the pppd processes
DESCRIPTION
Security-Enhanced Linux secures the pppd processes via flexible manda‐
tory access control.
BOOLEANS
SELinux policy is customizable based on least access required. pppd
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run pppd with the tightest access possible.
If you want to allow pppd to be run for a regular use, you must turn on
the pppd_for_user boolean.
setsebool -P pppd_for_user 1
If you want to allow pppd to load kernel modules for certain modem, you
must turn on the pppd_can_insmod boolean.
setsebool -P pppd_can_insmod 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the pppd_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
pppd_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 pppd_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 pppd policy is very flexible allowing users to setup their pppd
processes in as secure a method as possible.
The following file types are defined for pppd:
pppd_etc_rw_t
- Set files with the pppd_etc_rw_t type, if you want to treat the files
as pppd etc read/write content.
Paths:
/etc/ppp(/.*)?, /etc/ppp/resolv.conf, /etc/ppp/peers(/.*)?
pppd_etc_t
- Set files with the pppd_etc_t type, if you want to store pppd files
in the /etc directories.
Paths:
/etc/ppp, /root/.ppprc
pppd_exec_t
- Set files with the pppd_exec_t type, if you want to transition an
executable to the pppd_t domain.
Paths:
/usr/sbin/pppd, /usr/sbin/ipppd, /usr/sbin/pppoe-server,
/usr/sbin/ppp-watch, /sbin/pppoe-server, /sbin/ppp-watch
pppd_initrc_exec_t
- Set files with the pppd_initrc_exec_t type, if you want to transition
an executable to the pppd_initrc_t domain.
Paths:
/etc/rc.d/init.d/ppp, /etc/ppp/(auth|ip(v6|x)?)-(up|down)
pppd_lock_t
- Set files with the pppd_lock_t type, if you want to treat the files
as pppd lock data, stored under the /var/lock directory
pppd_log_t
- Set files with the pppd_log_t type, if you want to treat the data as
pppd log data, usually stored under the /var/log directory.
Paths:
/var/log/ppp(/.*)?, /var/log/ppp-connect-errors.*
pppd_secret_t
- Set files with the pppd_secret_t type, if you want to treat the files
as pppd se secret data.
pppd_tmp_t
- Set files with the pppd_tmp_t type, if you want to store pppd tempo‐
rary files in the /tmp directories.
pppd_unit_file_t
- Set files with the pppd_unit_file_t type, if you want to treat the
files as pppd unit content.
pppd_var_run_t
- Set files with the pppd_var_run_t type, if you want to store the pppd
files under the /run directory.
Paths:
/var/run/pppd[0-9]*.tdb, /var/run/ppp(/.*)?,
/var/run/(i)?ppp.*pid[^/]*
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.
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
pppd policy is very flexible allowing users to setup their pppd pro‐
cesses in as secure a method as possible.
The following process types are defined for pppd:
pppd_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 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), pppd(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com pppd pppd_selinux(8)
