Sunday, July 10, 2016

how to do remote ssh connection to openshift using putty?

What is the Openshift service?

Openshift is a platform as a server PAAS developed by Redhat company. Basically, openshift is a cloud computing platform provider for managing application development using several languages like PHP and nodejs framework. In the current market, the cloud is a famous buzzword with similar to amazon web services.OpenShift has different plans. You can choose a plan based on your requirement. Openshift provides a free plan which gives access to 3 small gears without a credit card. So you will develop applications using your favorite language and can deploy to openshift cloud, map this hosted application to your domain created in other domain registers like GoDaddy.

OpenShift platform features and advantages

  • Applications development and deployment
  • Hosting provider 
  • Support different languages, databases, and tools
  • No credit card required to jump start in
Once OpenShift selected, First step is to register in openshift online platform, you will get access to a set of tools and all features above.

First, you need to create an application, In my case, I created an online application by choosing PHP language and MySQL database.  your gear machine is created. We will see below how we log in to Openshift gear. We will have different options to connect to Openshift


Remote SSH connection to Openshift via putty in windows

First, you need putty, puttygen tools to connect to openshit gear.

Putty introduction


Putty is a free client tool. It provides a console to connect to different remote Linux and Ubuntu systems. It supports different ssh, HTTP Fttp protocols, and authorization technique to connect remote server securely. You can download this tool from the putty site.

puttyGen introduction

PuttyGen is also a free opensource tool which you get as part of the putty installation. It can be used to generate private and public keys to connect to a remote server


With putty and puttyGen installed on your windows system. First Open puttyGen tool to generate private key

Generate private Key using PuttyGen client tool


The puttygen tool is opened select SSH-2 RSA key type and finally click to generate a random key.

The random key generated by moving the mouse over space as per given black rectangle shape

Generate public Key using PuttyGen client tool


Next step, PuttyGen generated a private key as shown below


generated public private key pair using PuttyGen

Save the private key to your windows file system which can be used in the putty tool configuration

Go to OpenShift online setting, create a public key as like below by copying the from above screenshot to below text area and save it.

add public key in openshift online settings


That's from openshift settings, Now your machine in openshift is ready to receive remote ssh connection. Next step is an open putty tool,

Openshift source gear settings

copy the source code gear address with random password

openshift ssh remote connection using putty


After you click on open, You are able to connect to openshift gear in windows using SSH Client tools. Please comment if you have any difficulty to do remote connection to gear