1. Introduction
2. Network
   • Host name
   • Interface
   • Default route
   • DHCP client
3. Super user
4. OpenBlockS series
   • Network
   • Others

The directory, /etc, of SSD/Linux mimics NetBSD-1.4 but is different from that of the other Linux distributions.
One sees from the file, /etc/inittab, that /etc/rc.sysinit is executed when the system boots and then /etc/rc is done.

/etc/rc.sysinit and /etc/rc read /etc/rc.subr and /etc/rc.conf.
Functions are defined in the file, /etc/rc.subr.
The file, /etc/rc.conf, reads /etc/defaults/rc.conf.
The default values of the system are substituted to variables in it and write values which you want to change of the variables in /etc/rc.conf.
The system configuration is done with reference these values of the functions and the variables from /etc/rc.

This document explains files and ones relate with that among files which must be edited to run the system.
Please read SSD/Linux User's Guide, too.
There is duplication partly but there is the description written only here.

/etc/netstart is executed at first in /etc/rc.
It is the network configuration.
If

do_contrib_rc=YES

is in /etc/rc.conf, the file, /etc/netstart, reads the file, /usr/contrib/etc/netstart.local, if it exists.
Since this file is needed to use the WEB set up tool for OpenBlockS series, it is described bellow.

The host name is defined in /etc/rc.conf as follows,

hostname="foo.example.com"

or in /etc/myname,

foo.example.com

For the interface, eth0, in /etc/rc.conf as follows,

ifconfig_eth0="inet 192.168.253.254 netmask 255.255.255.0 broadcast 192.168.253.255"

or in /etc/ifconfig.eth0,

inet 192.168.253.254 netmask 255.255.255.0 broadcast 192.168.253.255

It is similar for the interface, eth1, and so on.
The names of interfaces are displayed by

$ /sbin/ifconfig -l

The default route is defined in /etc/rc.conf as follows,

defaultroute="192.168.253.1"

or in /etc/mygate,

192.168.253.1

To be DHCP client with the interface, eth1, the following definitions are in /etc/rc.conf,

dhclient=YES
dhclient_flags="eth1"

One sees from the configurations for SU_WHEEL_ONLY in the file, /etc/login.defs, and for su in the file, /etc/pam.conf, as follows.
To become super user with su(1) command the user must belong to the group, wheel.
Please add the user to wheel group in /etc/group.

To configure with the WEB set up tool the other files are referenced.
Please define in /etc/rc.conf as follows,

do_contrib_rc=YES

/etc/netstart reads /usr/contrib/etc/netstart.local.
/usr/contrib/etc/openblocks.conf is read in the latter and then network configuration is done with the information.

The contents of the file, /usr/contrib/etc/openblocks.conf, are overwritten with the configuration by the WEB set up tool. Thus you cannot use the WEB set up tool after you edit it manually.

/etc/rc reads /usr/contrib/etc/rc.local.
/usr/contrib/etc/openblocks.conf is read in the latter and then configuration based on the information is done and thttpd is started.