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Platform as a Service (PaaS)

Platform as a Service
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In simple words in this project we are going to develop a online coding webapp where you can just choose the programming language in which you want to code and Execute your code in the website itself.
The magic of using webserver and docker technology in PaaS is 
you can just connect all your device with the server and anyone connected with it will have access to the Coding Website we will develop.

1. First we will Develop the Web Page and Save it as  paas.html in the html folder of you apache server.

Write the Following code in that--


<form action ="http://192.168.43.80/cgi-bin/paas.py">
<br>

<pre>
    <h2>Select the Language</h2>   
<select name="languages">

  <option value="java">Java</option>
  <option value="python">Python</option>
  <option value="c">C</option>
  <option value="…
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Share applications with ssh (SaaS)

We are going to share our server's application programs to client system without actually installing it to client's pc. In this example we are going to use firefox as application program but any installed application(on server side) can be used for SaaS.

Server- RHEL7.2
Client- Windows or any linux based OS

For any type of service we need server applications which defines protocols that tells how the communication to client is going to happen.

For SaaS we will use SSH protocol-
Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network.
The server will be open-ssh --
OpenSSH is the connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking.

Step 1-
Installing SSH server --
Open terminal and type-
[root@www Desktop]# yum  install openssh-server

This will install the open-ssh server to your rhel7.2 server. In case you don't have the rpm file for open-s…