Kibana version: Kibana 5.0.0-alpha5

Elasticsearch version: Elasticsearch 5.0.0-alpha5

Server OS version: Proxmox Ubuntu 15.10 LXC

Browser version: Chrome/Firefox

Browser OS version:

Original install method (e.g. download page, yum, from source, etc.):

• https://download.elastic.co/kibana/kibana/kibana-5.0.0-alpha5-linux-x86_64.tar.gz
• https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/5.0.0-alpha5/elasticsearch-5.0.0-alpha5.tar.gz
• http://javadl.oracle.com/webapps/download/AutoDL?BundleId=211989

Description of the problem including expected versus actual behavior:

Steps to reproduce:

1. Create Ubuntu 15.10 container; apt update; apt upgrade
2. Download java, kibana, elasticsearch
3. No changes to kibana.yml
4. Make changes to elasticsearch.yml (see below)
5. Start Elasticserach su elastic -c "ES_JAVA_OPTS='-Xms2048m -Xmx2048m' elasticsearch"
6. Start Kibana
7. Receive error (see screenshot)

root@Kibana-500-alpha5:~# grep -v "#" /opt/elasticsearch-5.0.0-alpha5/config/elasticsearch.yml                                                                                            cluster.name: cluster-mk1-beta
discovery.zen.minimum_master_nodes: 1
node.master: false
node.data: false

This error does not occur if elasticsearch.yml is set to:

network.host: _site_ 

and kibana.yml is set to:

elasticsearch.url: "http://10.1.10.213:9200"

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):