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GUF-Yocto-34.0-r5756-0
Note: Due to the fact that telnet does not use encryption, it is recommended to deactivate this service
in final products in order to avoid security leaks. Disabling services is described in the chapter
Services].
The telnet service has a startup link that points to the corresponding start script:
/etc/rc.d/S20telnet -> /etc/init.d/telnet
The startup script simply starts
root@vincell:~# telnetd --help
BusyBox v1.22.1 (2015-09-17 20:08:55 CEST) multi-call binary.
Usage: telnetd [OPTIONS]
Following options are available and configured directly in the start script /etc/init.d/telnet:
Options:
-l LOGIN
-f ISSUE_FILE
-K
-p PORT
-b ADDR[:PORT]
-F
-i
-w SEC
-S
4.1.5 Module loading
The
modules
service is responsible for external module loading at system startup. It has a startup link that points
to the corresponding start script:
/etc/rcS.d/S05modutils.sh -> /etc/init.d/modutils.sh
The startup script simply looks which modules are listed in
To ensure that the module loading works correctly, the module dependencies in
sion>/modules.dep
have to be consistent.
4.1.6 Network initialization
The
network initialization
Fricke systems use ifplugd to detect if an ethernet cable or an WLAN stick is plugged.
The network interfaces are listed on the target system in the configuration file /etc/network/interfaces. On
conventional Linux systems, the user configures the network interfaces by hand using this file. On Garz & Fricke
systems, there is a service called
generates this file automatically according to the settings in the global XML configuration.
If the user wants to change the network settings, it is recommended to use the
4.2.1 Garz & Fricke system
Note: Changes that are made to
service on the next system startup and have no effect.
4.1.7 Garz & Fricke shared configuration
The
sharedconf
service reads shared configuration settings from the XML configuration and configures the
Linux system accordingly. This includes network (as described in
configuration.
The sharedconf service has a startup link that points to the corresponding start script:
16
VINCELL
User Manual
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/usr/sbin/telnetd
as a daemon. The usage of telnetd is shown by executing:
Exec LOGIN on connect
Display ISSUE_FILE instead of /etc/issue
Close connection as soon as login exits
(normally wait until all programs close slave pty)
Port to listen on
Address to bind to
Run in foreground
Inetd mode
Inetd 'wait' mode, linger time SEC
Log to syslog (implied by -i or without -F and -w)
service is responsible for initializing all network interfaces at system startup. Garz &
sharedconf
as described in
configuration].
/etc/network/interfaces
/etc/modules
and loads them using /sbin/modprobe.
I
[
4.1.7 Garz & Fricke shared configuration]
sconfig
directly will be overwritten by the sharedconf
I
[
4.1.6 Network
I
[
4.1
/lib/modules/<kernel ver-
that
I
script as described in
[
initialization]) and touch
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