syslogd_selinux(8) syslogd SELinux Policy documentation syslogd_selinux(8)NAMEsyslogd_selinux - Security Enhanced Linux Policy for the syslogd pro‐
cesses
DESCRIPTION
Security-Enhanced Linux secures the syslogd processes via flexible
mandatory access control.
BOOLEANS
SELinux policy is customizable based on least access required. syslogd
policy is extremely flexible and has several booleans that allow you to
manipulate the policy and run syslogd with the tightest access possi‐
ble.
If you want to determine whether Polipo session daemon can send syslog
messages, you must turn on the polipo_session_send_syslog_msg boolean.
setsebool -P polipo_session_send_syslog_msg 1
If you want to allow syslogd daemon to send mai, you must turn on the
logging_syslogd_can_sendmail boolean.
setsebool -P logging_syslogd_can_sendmail 1
If you want to allow syslogd the ability to read/write terminal, you
must turn on the logging_syslogd_use_tty boolean.
setsebool -P logging_syslogd_use_tty 1
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the sys‐
logd_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
syslogd_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 syslogd_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 syslogd policy is very flexible allowing users to setup their
syslogd processes in as secure a method as possible.
The following file types are defined for syslogd:
syslogd_exec_t
- Set files with the syslogd_exec_t type, if you want to transition an
executable to the syslogd_t domain.
Paths:
/usr/sbin/rsyslogd, /usr/sbin/syslog-ng, /usr/sbin/metalog,
/usr/sbin/syslogd, /usr/sbin/minilogd, /sbin/rsyslogd,
/usr/lib/systemd/systemd-kmsg-syslogd, /sbin/syslogd, /sbin/sys‐
log-ng, /usr/lib/systemd/systemd-journald, /sbin/minilogd
syslogd_initrc_exec_t
- Set files with the syslogd_initrc_exec_t type, if you want to transi‐
tion an executable to the syslogd_initrc_t domain.
syslogd_tmp_t
- Set files with the syslogd_tmp_t type, if you want to store syslogd
temporary files in the /tmp directories.
syslogd_var_lib_t
- Set files with the syslogd_var_lib_t type, if you want to store the
syslogd files under the /var/lib directory.
Paths:
/var/lib/syslog-ng.persist, /var/lib/r?syslog(/.*)?, /var/lib/sys‐
log-ng(/.*)?
syslogd_var_run_t
- Set files with the syslogd_var_run_t type, if you want to store the
syslogd files under the /run directory.
Paths:
/var/log/syslog-ng(/.*)?, /var/run/syslogd.pid, /var/run/syslog-
ng(/.*)?, /var/run/metalog.pid, /var/run/log(/.*)?, /var/run/sys‐
log-ng.ctl
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 syslogd policy is very flexible allowing users to setup their
syslogd processes in as secure a method as possible.
The following port types are defined for syslogd:
syslogd_port_t
Default Defined Ports:
tcp 6514
udp 514,6514
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
syslogd policy is very flexible allowing users to setup their syslogd
processes in as secure a method as possible.
The following process types are defined for syslogd:
syslogd_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), syslogd(8), semanage(8), restorecon(8), chcon(1) , setse‐
bool(8)dwalsh@redhat.com syslogd syslogd_selinux(8)
