Specifications

Configuring iNEWS Servers
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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 AppendixB.
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)