When configuring Aria Operations for Logs with "Prefer IPv6 addresses" select for dual stack network the cluster status shows unknown for nodes in the cluster.
Aria Operations for Logs 8.18.x
The address for the primary nodes show FQDN or IPv4 address instead of an IPv6 address.
Edit the configuration in internal config.
ifconfig -a
<daemon host="<FQDN>" port="16520" token="################">
<service-group name="standalone" />
</daemon>
<daemon host="<IPv6 address>" port="16520" token="##############">
<service-group name="workernode" />
</daemon>
<daemon host="<IPv6 address>" port="16520" token="##############">
<service-group name="workernode" />
</daemon>
service loginsight restart