Arvind Kushwah Web Developer and Software Consultant

1. Give 400 permission to pem file. sudo chmod 400 example.pem 2. Login on server.  ssh -i  example. pem file ubuntu@ip_address ------------------------------ ------------------------------ ---------- 3. You can check ubuntu server details by: lsb_release -a No LSB modules are available. Distributor ID:    Ubuntu Description:    Ubuntu 16.04.2 LTS Release:    16.04 Codename:    xenial ------------------------------ ------------------------------ ---------- 4. Install the required libraries: sudo apt-get update sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev nodejs yarn sudo apt-get install libgdbm-dev libncurses5-dev automake libtool bison libffi-dev gpg --keyserver hkp:// keys.gnupg.net  --recv-keys 409B6B1796C275462A1703113804BB 82D39DC0E3 curl -sSL  https://get.rvm.io  | bash -s stable source

I was getting follwing error on server. ActionView::Template::Error (Failed to open TCP connection to localhost:9292 (Connection refused - connect(2) for "localhost" port 9292)) It can be fixed by following options: sudo nano /etc/nginx/sites-available/default location /faye {     proxy_pass  http://localhost:9292 ;      proxy_set_header Host $host;      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;      proxy_set_header X-Real-IP $remote_addr;      proxy_connect_timeout 90;      proxy_send_timeout 90;      proxy_read_timeout 90;      proxy_set_header X-Forwarded-Proto https;      break; } rackup  private_pub.ru  -s thin -E production -D

From a fresh install of Ubuntu 16.04: sudo apt-get install elasticsearch After that, the following should work but doesn't: sudo /bin/systemctl daemon-reload sudo /bin/systemctl enable elasticsearch.service sleep 10 curl  http://localhost:9200/ Despite that, the following does work: sudo -u elasticsearch /usr/share/elasticsearch/bin/elasticsearch & sleep 10 curl  http://localhost:9200/