The IP address and the name of the server must be added to the /etc/hosts on that server. Failure to add the IP address and name will cause Open Telecommunications Platform installation to fail.
Log in as root (su - root) to the server.
Verify that the /etc/hosts file has entries for loopback and the server primary and secondary Ethernet interfaces.
Make certain that either of the following loopback entries is in the /etc/hosts file.
127.0.0.1 localhost
or
127.0.0.1 localhost.localdomain localhost
Make certain that an entry exists for the server primary and secondary Ethernet IP address.
For example:
111.11.111.11 server_name_interface1.domain_name 111.11.111.22 server_name_interface2.domain_name
where:
111.11.111.11 is the IP address of the primary Ethernet interface
server_name_interface1 is the primary name of the server being configured such as the external OTP installation server, the first OTP host, or the additional OTP host
111.11.111.22 is the IP address of the secondary Ethernet interface
server_name_interface2 is the secondary name of the server being configured
domain_name is your corporate domain name
The /etc/hosts should be similar to the following example, where server_name.company.com
127.0.0.1 localhost.localdomain localhost 10.11.123.15 management-server.company.com 10.11.123.16 management-server-port2.company.com
Save and close the /etc/hosts file.
Reboot the server.
Ensure port 162 is not in use as described in the next procedure.