Some background: I am attempting to connect to an Oracle database. I have a username, password, IP address, port, and service name. I only have access to this database from an Ubuntu EC2 instance on AWS because the Oracle database is located inside another organization. Due to this, I do not have access to a DNS hostname for this machine.
I downloaded the "Oracle Instant Client with SQL Plus" client package from Oracle's website and extracted it to a folder. When I try to run it, I get this message:
ORA-24454: client host name is not set