Virtual TapeServer 8.0 Configuration Guide

48 | Enabling and Configuring Role Swapping
Configuring network settings and TCP/IP security
You must configure network settings and TCP/IP security for all VTS locations. To configure
the primary (local) system, you must attach a monitor, keyboard, and mouse to the VTS
server. To configure secondary (remote) systems, you must use a remote-access application to
access those systems, or perform the steps at each site. The IP address, which will differ for
each VTS server, must be configured at the primary and secondary sites. Consult your
network administrator to determine the gateway and subnet mask to use for each system.
In addition, you should be familiar with networking concepts to complete the steps in this
section. Obtain the following information before beginning this procedure:
• Root access to the VTS system; see Managing operating system accounts on page 99 for a
list of the default accounts provided on the server
• IP address, subnet mask, and gateway of each VTS server
Configuring network settings
The following steps use two sites as an example of enabling Data Replication between two
sites, Server A and Server B, connected by a wide area network (WAN):
To configure network settings
1. Verify that the hostname, IP address, and gateway are configured on each VTS server in
the environment. Refer to the Quick Start Guide for more information.
2. If DNS or DHCP is not configured in your environment and you want the servers to
communicate using hostnames, set up the /etc/hosts file to configure aliases for each VTS
server in the environment. Perform this step on the secondary server for each primary
VTS server.
a. At the command prompt, log in.
b. Become root:
su -
c. Be sure the file contains the IP address, hostname, and alias for the primary VTS
server and the secondary server(s). Here is an example of the file on Server A:
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
10.10.2.144 server_a.domain.com server_a
10.10.2.145 server_b.domain.com server_b
Here is an example of the file on Server B:
# Do not remove the following line, or various programs
# that require network functionality will fail.