Owner's Manual

16 Configuring Your Network
Configuring a DNS Server
To configure a DNS server using GNS:
1 Configure GNS VIP address on DNS server—In the DNS, create a name
resolution entry for the GNS virtual IP address in the forward Lookup file.
For example:
gns-server IN A 192.0.2.2
where gns-server is the GNS virtual IP address given during grid installation.
The address that you provide must be routable and should be in public
range. For example, 192.0.2.2.
2 Configure the GNS sub-domain delegation—In the DNS, create an entry
to establish DNS Lookup that directs the DNS resolution of a GNS
sub-domain to the cluster. Add the following to the DNS Lookup file:
clusterdomain.example.com. NS gns-server.example.com .
where
clusterdomain.example.com is the GNS sub domain (provided during
grid installation) that you delegate and
gns-server.clustername.com resolves
to GNS virtual IP address.
Configuring a DNS Client
To configure a DNS client:
1
Add host entries within the /etc/hosts file domain name. On each node,
modify lines in the /etc/hosts file by typing:
127.0.0.1 localhost.localdomain localhost
<public IP node1> <fully qualified hostname node1>
<public hostname node1>
<public IP node2> <fully qualified hostname node2>
<public hostname node2>