Wednesday, March 11, 2015

File Transfer using Puppet

       sudo apt-get install irb libopenssl-ruby libreadline-ruby rdoc ri ruby ruby-dev
       sudo apt-get install puppet puppetmaster
       sudo apt-get install irb libopenssl-ruby libreadline-ruby rdoc ri ruby ruby-dev
       sudo apt-get install puppet  

 1)  Both side: server and client
 1.1) Edit: gedit /etc/hosts

Set syntax below:

Server ip:   
Client ip:     

  2) Puppet server
      2.1) Edit puppet.conf:
gedit /etc/puppet/puppet.conf
Set syntax below:
certname = 
(This name will be puppet server name for certificate)
2.2) Create Folder in Puppet:

2.2.1) Step - 1:
make folder in /etc/puppet/ which name is 'files'

At cmd:
mkdir /etc/puppet/files
2.2.2) Step - 2:
make folder 'testing' in 'files' folder which will clone at client side

At cmd:
mkdir /etc/puppet/files/testing
Copy testing source and paste /etc/puppet/files/testing

At cmd:  
cp  -r / tesing /  /etc/puppet/files/testing

Edit  fileserver.conf
gedit etc/puppet/fileserver.conf

Set syntax below :
 path /etc/puppet/files
 allow *
 #  deny *

 allow *
 #  deny *

2.4) Create 'site.pp' file in /etc/puppet/manifests/
Add below code :
  class sudo {
    file { "/ tesing ":
     mode => "644",
     owner => 'root',
    group => 'root',
   ensure => directory,
   recurse => true,
   purge => true,
   force => true,
  source => 'puppet:///files/ tesing’

node puppetclient {
    include sudo

Restart puppetserver
cmd:  /etc/init.d/puppetmaster restart
3) Puppet client
3.1) Edit puppet.conf
gedit /etc/puppet/puppet.conf

Set syntax as given below:

certname =
(This name is puppet client name for certificate)
server =
runinterval = 60  
3.2) Restart puppet
cmd:  /etc/init.d/puppet restart          

4) Connect server and client

Client side
As a command, for certificate request:
puppetd --server  --waitforcert 60 –test
(You should see the following message.)
err: No certificate; running with reduced functionality.
info: Creating a new certificate request for pclient.example.con
info: Requesting certificate
warning: peer certificate won’t be verified in this SSL session
notice: Did not receive certificate

Server side
Use command as shown below:
puppetca --list

Then Display client request like below:
Then sign the certificate.
To sign the certificate, use below command 
puppetca –sign

If everything went OK you should see this message on puppetclient.
info: Requesting certificate
warning: peer certificate won’t be verified in this SSL session
notice: Ignoring –listen on onetime run
info: Caching configuration at /etc/puppet/localconfig.yaml
notice: Starting configuration run
notice: //puppetclient/test_class/File[/tmp/testfile]/ensure: created
info: Creating state file /var/lib/puppet/state/state.yaml
notice: Finished configuration run in 0.11 seconds

if everything is ok, client have folder named liferay-tomcat in filesystem.

5) If any problem to verify certificate, use below command

find /var/lib/puppet -type f -print0 |xargs -0r rm

restart client and send request by going again to step (4).     

Thursday, August 21, 2014

Happy To Announce My Another Book - DynamoDB Applied Design Patterns

About This Book
Create, design, and manage databases in DynamoDB
Immerse yourself in DynamoDB design examples and user cases, be it for new users or expert ones
Perform sharding and modeling, to give your applications the low cost NoSQL edge

Who This Book Is For
If you are an intermediate to advanced DynamoDB developer looking to learn the best practices associated with efficient data modeling, this book is for you.

In Detail
DynamoDB provides fast and predictable performance with seamless scalability. If you are a developer, you can use DynamoDB to create a database table that can store and retrieve any amount of data, and serve any level of request traffic. DynamoDB automatically spreads the data and traffic across multiple Availability Zones in a Region to provide high built-in availability and data durability. As a database administrator, you can create, scale up or down your request capacity for the DynamoDB table without downtime or performance degradation, and gain visibility into resource utilization and performance metrics.
Designed as a complete solutions guide for AWS DynamoDb, this book is a fully managed proprietary NoSQL database service pattern that is offered by as part of the Amazon Web Services portfolio. You will learn how to create, design, and manage databases in DynamoDB, using the AWS SDKs, APIs as well as the AWS Management Console, followed by designing a browser-based graphical user interface for interacting with the service.
The book will include a significant number of examples that can be used by new users and experts alike. The book begins with a description on the concepts of data model including tables, items, and attributes, primary key, indexes, and design patterns. You will learn to access DynamoDB in the Management Console, command line, and eclipse plugin. You will also gain insights into DynamoDB locals and CLI commands. Furthermore, global and local secondary indexes and its importance in DynamoDB will be looked into. You will then learn how to use Query and Scan operations in DynamoDB tables, along with DynamoDB APIs and their formats. The book ends by covering the best design use cases DynamoDB architectures along with real-time problem statements and their best solutions.
By the end of the book, you will have all that it takes to efficiently use DynamoDB to its utmost capabilities.

ISBN13  9781783551897
Paperback  179 pages

Even you can checkout my other titles on

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