Chapter 8 System Set-Up And Operation; Network Configuration; Setting Up A Gateway Machine - Sun Microsystems Sun Workstation 100U System Manager's Manual

Chapter 6
System Set-Up and Operation
This chapter describes procedures used to set-up and operate a Sun Workstation
UNIX
system.
Set-up material applies to a first-time installation: in most cases, it includes background inror-
mation on and installation procedures ror the various available utilities - like the mail system,
'1/'
log, uucp, and USENET -- you may wish to use. Operations procedures described here are
used periodically to reboot the system, analyze error messages rrom devices, do disk backups,
monitor system performance, and so on.
601. Network Configuration
6.1.1. Setting up a Gateway Machine
If you have a machine with two Ethernet Boards, you must edit
I
etcl hoat, and
I
etcl rc.local 'by
hand' to set up a proper configuration, Note that since each machine on a network must have a
unique hostname associated with each unique Internet address, a machine with two boards must
have a 'second identity'; it must be assigned a second hostname 3D.d Internet address. Proceed
as follows:
1. Edit
I
etcl hoat, on the gateway machine, and add a line for the machine's 'second' hostname
and address. For example, eay "jekyll" has two Ethernet Boarde: the machine is a eerver ror
a network or clients, and also is a gateway to another network containing a printer and so
on. Several lines of / etcl hoat, might look like this:
#=
Fantasy Local Net 192.9.200 -- 10Mb/s Ethernet -- Engineering
*
192.9.200.1
192.9.200.2
192.9.200.3
[ etc. ]
j~kyll
loghost datehost
usher
lenore
#=
Fantasy Local Net 192.9.4 -- 10Mb/s Ethernet -- Marketeering
#=
192.9.4.1
192.9.4.2
192.9.4.3
[ etc. ]
quasimoto
godzilla
rodan
Add an entry ror the machine's second address:
Revision
Ii
of 12 March 1984 6-1