If you try to run Elasticsearch in a Jail without an external IP address you might an error like: No up-and-running loopback addresses found, got [name:lo1 (lo1)] you need to bind your Elasticsearch to your Loopbkac address:

/usr/local/etc/elasticsearch/elasticsearch.yml:
network.host: 10.10.10.2

hackacad

a collection of FreeBSD and security related snippets