The IP address and the name of your management server must be added to the /etc/hosts. Failure to add the IP address and name will cause Sun N1 System Manager installation to fail.
Log in as root to the Sun N1 System Manager management server.
Verify that the /etc/hosts file has entries for loopback and the management server.
Make certain that either of the following loopback entries is in the /etc/hosts file.
127.0.0.1 localhost.localdomain localhost
Make certain that an entry exists for the management server and its IP address. For example:
220.127.116.11 n1mgmt.domain n1mgmt.domain
where 18.104.22.168 is the IP address of the management server, and n1mgmt is the name of the management server and domain is your company domain name.
Your /etc/hosts should be similar to the following example:
127.0.0.1 localhost.localdomain localhost 10.5.157.123 n1mgmt.company.com
Save and close /etc/hosts.
Reboot the N1 System Manager management server.
Configure the management server mail service as described in Configuring the Management Server Mail Service and Account.