Avid Technology iNEWS, Installation & Operation Manual

Page: 63 / 152

Configuring iNEWS Servers
63
c
Always back up the
/etc/hosts
file before editing.
To add IP addresses to all iNEWS Servers’
/etc/hosts
files:
1. Select all servers at the console. Instructions for how to do this is
provided in Chapter 2 of the iNEWS Newsroom Computer System
Operations Manual.
2. Type
su
to log in as superuser and type the superuser password.
These steps require the
use of
ed
, the UNIX
line editor. For more
information, see
Chapter 10 of the
iNEWS Newsroom
Computer System
Operations Manual.
3. Type ed /etc/hosts
This command launches the UNIX line editor, and positions the cursor
at the end of the
/etc/hosts
file, which contains a list of IP
addresses, computer names, and comments, such as:
125.1.0.1 NRCS-A nrcs-a nrcs-a.yourdomain.com
125.1.0.2 NRCS-B nrcs-b nrcs-b.yourdomain.com
n
A sample
/etc/hosts
file is provided in Appendix B .
4. Add addresses to the file by doing the following:
a. Type
a
and press Enter to append information to the file.
b. Enter IP addresses, computer names, and comments, such as:
125.1.10.50 MOSGWY mosgwy #MOS Gateway machine
c. Type a period (
.
) to stop appending information to the file.
d. (Optional) Type
p
to print the appended file and verify your
changes.
e. Save the file by typing
w
.
f. Quit ed by typing q .
The following example shows the UNIX line editing commands used
in step 4 along with explanations (appearing in parentheses after the
command):
a
(begins append mode)
125.1.10.50 MOSGWY mosgwy # MOS Gateway
125.1.10.60 MG1 mg1 # MOS Gateway Server1
(backup MOS
Gateway)
125.1.10.70 MG2 mg2 # MOS Gateway Server2
.
(ends append mode)
p
(prints appended file)