Before you run the installation program, ensure that your operating system includes all required packages, fixes, and patches with the correct maintenance levels as specified in the installation requirements.
If you install the product in a distributed configuration, all servers must run the same operating system.
For both single server installations and multiple server installations, if the product is deployed on an operating system with an enabled firewall, the crawlers can only crawl data in the trusted zone.
The host name cannot be a loopback address. Verify your hosts file does not contain a loopback address. If it does, add a comment to the line so that it is excluded from the file. If the servers where you host Watson Explorer Content Analytics need to support dual IP addresses, you must manually configure the servers after running the installation program.