cannt connect to kibana...

As the error message indicates, the version of Kibana requires Elasticsearch >= 0.90.9. If you follow that tutorial, you should have Elasticsearch 1.7 installed. Ensure that you have correctly added the repository. The file /etc/yum.repos.d/elasticsearch.repo should look like:

[elasticsearch-1.7]
name=Elasticsearch repository for 1.7.x packages
baseurl=http://packages.elastic.co/elasticsearch/1.7/centos
gpgcheck=1
gpgkey=http://packages.elastic.co/GPG-KEY-elasticsearch
enabled=1

You can verify the version of Elasticsearch by running the command yum info elasticsearch The output should look like:

$ yum info elasticsearch
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.solarvps.com
 * epel: ftp.osuosl.org
 * extras: ftp.osuosl.org
 * updates: mirror.atlanticmetro.net
Installed Packages
Name        : elasticsearch
Arch        : noarch
Version     : 1.7.5
Release     : 1
Size        : 30 M
Repo        : installed
From repo   : elasticsearch-1.7
Summary     : elasticsearch
License     : (c) 2009
Description : Elasticsearch - Open Source, Distributed, RESTful Search Engine