FAQ: Can I run LogScale on IPv6-only, IPv4-only or both?

LogScale runs on either or both IP versions, depending on what you specify using HUMIO_OPTS. By default, the process binds on both IPv4 and IPv6 simultaneously.

To use IPv4 individually:

ini
HUMIO_OPTS=-Djava.net.preferIPv4Stack=true

To use IPv6 individually:

ini
HUMIO_OPTS=-Djava.net.preferIPv6Addresses=true

If you use the Docker images provided by LogScale for Kafka/ZooKeeper or run the "humio/humio" image that includes both of them, ensure those processes also receive the same options regarding IP protocol as the LogScale process.