Archive for guide

[just.few.tuts] Puppet ~ Beginner’s Concept Guide (Part 4) Where Is My Data?

Posted in Blogroll, tutorial with tags , , , , , , , , , , , , , , , on August 2, 2013 by abhishekkr

justfewtuts.blogspot.in [26/July/2013]

http://justfewtuts.blogspot.com/2013/07/wip-puppet-beginners-concept-guide-part.html

Puppet
beginners concept guide (Part 4)

Where is my Data?

When I started my Puppet-ry, the examples I used to see had all configuration data buried inside the DSL code of manifests, people were trying to use inheritance to push down data. Then got to see a design pattern in puppet manifests keeping out separate parameters manifest for configuration variables. Then came along the External Data lookup via CSV files as a Puppet function. Then with enhancements in puppet and other modules came along more.

Below are few usable to fine ways utilizing separate data sources within your manifests,

Here, we will see usage styles of data for Puppet Manifests, Extlookup CSV, Hiera, Plug-in Facts and PuppetDB.

params-manifest:

It is the very basic way of separating out data from your functionality code, and the preferred way for in-future growing value-set type of data. It will keep it separate from the code since start.

…..

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[just.few.tuts] Beginner’s Guide to OpenStack : Basics of Nova #Part.2

Posted in Blogroll, tutorial with tags , , , , , , , , , , , , on April 30, 2013 by abhishekkr

justfewtuts.blogspot.com []

http://justfewtuts.blogspot.in/2013/04/beginners-guide-to-openstack-basics-of.html

parts of Beginner’s Guide to OpenStack to read before this ~
Part1: Basics

[Part.2 Basics of Nova] Beginner’s Guide to OpenStack

# Nova?
It’s the main fabric controller for IaaS providing Cloud Computing Service by OpenStack. Took its first baby steps in NASA. Contributed to OpenSource and became most important component of OpenStack.
It built of multiple components performing…..

# Components?
Nova stores states of virtual machines in a central database. It’s optimal for…..

# API Style
Interface is mostly RESTful. Routes (python re-implementation of Rails route system) packagesmaps URIs to…..

# Threading Model
Uses Green Thread implementation by design using eventlet and greenlet libraries. This results into single process thread for O.S. with it’s blocking I/O issues. Though…..

# Filtering Scheduler
In short it’s the mechanism used by ‘nova-scheduler’ to choose the worthy nova-compute host for new required virtual machine to be spawned upon. It prepare…..

# Message Queue Usage
Nova components use RPC to communicate each other via Message Broker using PubSub. Nova implements rpc.call (request/response, API acts as consumer) and rpc.cast (one way, API acts as publisher)…..

…..

…click here to read full post

[just.few.tuts] Beginner’s Guide to OpenStack : Basics #Part.1

Posted in Blogroll, tutorial with tags , , , , , , , , , , , , , , , , , , on April 30, 2013 by abhishekkr

justfewtuts.blogspot.com [17/Apr/2013]

http://justfewtuts.blogspot.in/2013/04/beginners-guide-to-openstack-basics.html

OpenStack?
OpenStack (http://www.openstack.org/) is an OpenSource cloud computing platform that can be used to build up a Public and Private cloud. As in weaving of various technological components to provide a capability to…..

# Quick Hands-On
DevStack (http://devstack.org/) gives you the easiest fastest way to get all OpenStack components installed,…..

# Components?

OpenStack Cloud Platform constitutes of mainly following components:
…..

Message Queue Service is used by most of the OpenStack Compute services to communicate with each other using AMQP (Advanced Message Queue Protocol) supporting async calls and callbacks.

# Weaving of Components

asciigram: openstack ~ evolution mode, how varied components are connected

…click here to read full post

[just.few.tuts] Puppet ~ Beginners Concept Guide [Part#3] :: Modules much more

Posted in AbhishekKr, Blogroll, tutorial with tags , , , , , , , , , on September 1, 2012 by abhishekkr

justfewtuts.blogspot.in [5/August/2012]

http://justfewtuts.blogspot.in/2012/08/puppet-beginners-concept-guide-part-3.html

MODULES WITH MORE

here some time on the practices to prefer while writing most of your modules

[] HowTo Write Good Puppet Modules  
(so everyone could use it and you could use it everywhere)

  • platform-agnostic
    With change in Operating System …..
  • untangled puppet strings
    You are…..
  • no data in c~o~d~e
    Now when you are…..
  • puppet-lint
    To keep the …..
  • do-undo-redo
    It’s suggested to …..

[] More about Modules  (moreover…..)
Where to get…..

…..click here to read full post

[just-few-tuts] A Beginner’s Concept Guide for Puppet [part#1]

Posted in AbhishekKr, Blogroll, tutorial with tags , , , , , , , , , on July 10, 2012 by abhishekkr

justfewtuts.blogspot.in [29/May/2012]

http://justfewtuts.blogspot.in/2012/05/puppet-beginners-concept-guide-part-1.html

Puppet beginners concept guide (Part 1)
[] What  it  is?  When  is  it  required?  (for all new guys, who came here while just browsing internet)
Puppet is an…..

[] Quickie.
Install …..

[] Dumb  usage  structure.
Create…..

[] How  it  evolves?
Now, as any …..

…..click here to read full post

[hackersmag] Social Engineering ~ Eden Guide to Hacking

Posted in AbhishekKr, security with tags , , , , , , , on November 14, 2011 by abhishekkr

@ hackersmag.blogspot.com [3-October-2011]

http://hackersmag.blogspot.com/2011/10/eden-guide-to-hacking-httpsgithub.html

@github…..Active_Recon/article2_Social_Engineering.txt

Most creative non-technical hacker practice known to mankind.

a.) It’s Art of Communication with People for ‘Information Leakage‘.

You have a ‘Victim’ identified by now and…..

…..click here to read in detail

 

[hackersmag] Open Intelligence Gathering ~ Eden Guide to Hacking

Posted in security, Uncategorized with tags , , , , , , , on November 14, 2011 by abhishekkr

@ hackersmag.blogspot.com [13-September-2011]

http://hackersmag.blogspot.com/2011/09/open-intelligence-gathering-for-passive.html

@github…..chapter4_Reconnaissance/section0_Passive_Recon/article0_Open_Intelligence_Gathering.txt

|
 |[+] What Is Open Intelligence?
 |
 |[+] Legal Documents Got Them
 |
 |[+] Search Engines Sort Them
 |
 |[+] Web Activity Caught Them
 | |
 | |[+] You Blog/Comment
 | |[+] You Socialize.....

…..click here to read in detail