Disable USB ports on Windows Registry

With this trick, you can disable USB access ports on Windows based PC to prevent people from taking out data without permission or spreading viruses through the use of USB drives.

Follow the steps :

Click on Start.
Click on Run. If you cannot find RUN, type it in the search box.
Type "regedit" without quotes. This will launch the Registry Editor.

Navigate to  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbstor.

In the work area, double click on Start.
In the Value Data box, enter 4.
Click on OK.

Close Registry Editor and refresh your desktop.
To re-enable access to your USB ports, enter 3 in the Value Data box.

This works on Windows 10, Windows 8, Windows 8.1, Windows 7 and Windows XP.

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Exchange 2007/2010/2013 Server Roles_function of each roles

Server roles allow an administrator to split the functions of an Exchange server and place each role, or a combination of roles, on different servers in the organization. This can be done for performance reasons, management reasons, or any other reason deemed necessary by the organization's policies.

Exchange 2007 introduces five roles

·         Edge Transport

·         Hub Transport

·         Client Access

·         Mailbox

·         Unified Messaging

·         Edge Transport

The Edge Transport role is installed on the edge of the network and therefore is installed on a standalone server that is not a member of the Active Directory domain. This allows the Edge Transport to perform recipient lookups and Spam filtering.

Hub Transport

The Hub Transport role is responsible for all internal mail flow. This role is similar to the bridgehead server in an Exchange 2000/2003 organization. In fact it originally was called the Bridgehead Role until it was changed.

Client Access

The Client Access Role is similar to the role a Front-End server would play in an Exchange 2000/2003 organization. The Client Access server is the server that users connect to with their mail client, mobile device, or web browser. 

 Mailbox

The simplest of the roles has to be the Mailbox Role. Quite simply the Mailbox role holds the Exchange databases within which the user mailboxes are contained. It is also home to the Public Folder databases if you enabled Public Folders. (They are not enabled by default in Exchange 2007)

Unified Messaging

The Unified Messaging role is responsible for merging your VOIP infrastructure with your Exchange organization.

Port exchange server 2013 mail flow:

Port 25 – It was used for SMTP
Port 587 – It was used for Client Connections (POP\IMAP)
Port 717 – It was used for outbound proxy connections.
Port 465 – It was used to accept proxy connection that was received on port 587
Port 475 – Mailbox Transport Delivery Service listens to this port to send mails to the users.
Port 2525 – It was used when CAS and MBX servers are collocated on the same server.

Image Source : Microsoft

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Router

CCNA

Router: It is the 3^rd layer of OSI model.

It is most intelligent device.

It maintain routing table which contains the information of best route to reach any network.

It creates no collision domain and broadcast domain.

R1 : 192.168.10.1                                                                             R1 & R2 : Router

R2 : 192.168.10.2                                                                             A / B: Computer 

A : 172.14.0.14

B : 10.0.0.2

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AWS solution architect

 AWS Architect ::::

What is auto-scaling?

Ans.Auto-scaling is a feature of AWS which allows you to configure and automatically provision and spin-up new instances without the need for your intervention.

What are the different types of cloud services?

Ans. Software as a Service (SaaS), Data as a Service (DaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

What is Amazon S3?

Ans. Amazon S3 (Simple Storage Service) is an object storage with a simple web service interface to store and retrieve any amount of data from anywhere on the web.

What is SimpleDB?

Ans. It is a structured data store that supports indexing and data queries to both EC2 and S3.

What is an AMI? 

Ans. AMI (Amazon Machine Image) is a snapshot of the root filesystem.

What is the type of architecture, where half of the workload is on the public load while at the same time half of it is on the local storage?

Ans. Hybrid cloud architecture.

Can I vertically scale an Amazon instance? How do you do it?

Ans. Yes. Spinup a new larger instance than the one you are running, then pause that instance to detach the root ebs volume from this server and discard. After that, stop the live instance and detach its root volume. Note the unique device ID and attach that root volume to the new server, and start again. This way you will have scaled vertically.

How can you send request to Amazon S3?

Ans. You can send request by using the REST API or the AWS SDK wrapper libraries that wrap the underlying Amazon S3 REST API.

How many buckets can be create in AWS by default?

Ans. By default, 100 buckets can be created.

Should encryption be used for S3?

Ans. Encryption should be considered for sensitive data as S3 is a proprietary technology.

What are the various AMI design options?

Ans. Fully Baked AMI, JeOS (just enough operating system) AMI, and Hybrid AMI.

What is Geo Restriction in CloudFront?

Ans. Geo restriction, also known as geoblocking, is used to prevent users in specific geographic locations from accessing content that you’re distributing through a CloudFront web distribution.

Explain what is T2 instances?

Ans. T2 instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by workload.

What is AWS Lambda?

Ans. AWS Lambda is a compute service that lets you run code in the AWS Cloud without provisioning or managing servers.

What is a Serverless application in AWS?

Ans. The AWS Serverless Application Model (AWS SAM) extends AWS CloudFormation to provide a simplified way of defining the Amazon API Gateway APIs, AWS Lambda functions, and Amazon DynamoDB tables needed by your serverless application.

What is the use of Amazon ElastiCache?

Ans. Amazon ElastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory data store or cache in the cloud.

Explain how the buffer is used in Amazon web services?

Ans. The buffer is used to make the system more robust to manage traffic or load by synchronizing different component.

Differentiate between stopping and terminating an instance

Ans. When an instance is stopped, the instance performs a normal shutdown and then transitions to a stopped state.

When an instance is terminated, the instance performs a normal shutdown, then the attached Amazon EBS volumes are deleted unless the volume’s deleteOnTermination attribute is set to false.

Is it possible to change the private IP addresses of an EC2 while it is running/stopped in a VPC?

Ans. The primary private IP address cannot be changed. Secondary private addresses can be unassigned, assigned or moved between interfaces or instances at any point.

Give one instance where you would prefer Provisioned IOPS over Standard RDS storage?

Ans. When you have batch-oriented workloads.

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AWS CLI (Command Line Interface) Installation on Microsoft Windows

AWS CLI Installation Process  on MS Windows ::

MSI Installation Steps ::

You can download MSI setup for 32 & 64 Bit OS.

https://s3.amazonaws.com/aws-cli/AWSCLI64.msi

https://s3.amazonaws.com/aws-cli/AWSCLI32.msi

From this link download the setup and install the setup it will install and open the AWS configuration.

For check that set up installed properly or not simply use the below command :: aws --version




>>
>> Steps for installing Python, pip, and the AWS CLI

Steps ::

>> install Python 3.6 and pip (Windows)::

Download the Python 3.6 Windows x86-64 executable installer from this link

Python.Org

Run the installer. Choose Add Python 3.6 to PATH. Choose Install Now.

Installation Progress going on





After finishing the installation Verify that Python and pip are both installed correctly with the following commands:

C:\Windows\System32> python --version

Python 3.6.2

C:\Windows\System32> pip --version


>> AWS CLI using pip:

C:\Windows\System32> pip install awscli

PIP Installation going on

After installation done. Need to verify
C:\Windows\System32> aws –version (open command prompt as administrator)




Here it is showing aws version. AWS Installation properly.

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One day trip to Mumbai_Colaba

Bombay (Mumbai) can be overwhelming on your first visit, but after multiple trips it’s much easier to get around with ease and see more of the amazing city. I’ll share with you my short trip in Colaba Mumbai. 

My trip was started from Pune Maharashtra. There are many ways to reach mumbai from Pune.

From Pune you can travel by Air,BUS, Train, Travel Car, or even you can rent Car as well. All options are available.

We were went mumbai from pune by Train.

Pune Railway Station ::

Chhatrapati Shivaji Terminus railway station

We reached in morning.

We covered Colaba Area in one day. Here are the some visiting places in colaba.

Gateway of India
The Gateway of India is one of India's most unique landmarks situated in the city of Mumbai. The colossal structure was constructed in 1924. 

People can visit the monument at any time of the day. The best time to visit the Gateway of India is during the period of November to March, as the post-monsoon climate is very pleasant and there are very less chances for downpours at this time.

Front View from Gate way of India_Arabian Sea

Taj Hotel 

Juhu Beach :

Juhu Beach in Mumbai is one of the most famous Indian beaches. This beach is known to be the one of the most-visited beaches of India and is situated in 'Ville Parle'. It is located approximately 18 km from the city center and is a desired location for most film shootings.

 The street foods, such as 'Pani Puri', 'Bhel Puri' and 'Pav Bhaji' are just some of the many delicacies offered at the beach stalls.

The best time to visit Juhu Beach is from the months of October to February. It is best to avoid visiting the beach during the monsoon season as high tides are expected during this time.

Regal Cinema

According to the Limca Book of Records, Regal Cinema was India’s first air-conditioned theater, and has remained a sanctuary away from the heat and crowds ever since. Regal was one of the theaters built during the outburst of cinema in India,making Regal cinema not only an entertaining visit, but a historic one too. 

Back Bay

Back Bay is the water kingdom of Colaba, a beautiful area of sea and sand away from the hustle and bustle of the city. The bay encompasses the famous Chowpatty beach, one of the most popular beaches in the city. Take a stroll along the bay and observe the couples taking a romantic walk, college students strolling and cycling along the walkways, taking in the salty breeze that fills the air with freshness.

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Launching EC2 Instance_Free tier_Using Default VPC step by step

In AWS computing here i will show you how to launch EC2 instance (free tier) using default VPC (Virtual Private Cloud).  Before starting you must have an account on aws.

Steps ::

Log in to AWS Console.

Log in in aws console if dont have account simply can create account. For creating account in aws you must have credit card. You can also use international debit card as well.

After log in the console you will get the dash board. From dash board you can select regions as there are multiple regions are there and they are different types. Here I select Asia-Mumbai. And then you can get the option EC2 from compute. If you not you can search from drop down list or simply type on search box.

After opening ec2 dashboard you will get this type dashboard of ec2. From here you have to click launch instance.

Then you have to choose AMI (Amazon machine image). Here I am creating GUI so I am choosing here Windows Server 2016.

Here we have to Choose an Instance Type
There are many tepes of instances here basics are eligble for freetoer. Are rest of chargable so before proccedd must check which state you are choosing.
In this instance type there are 5 types and both are different purpose use. For more click here

Here I am selecting t2 micro general purpose free tier

Click Next : Configure instance type.
Now we got configure instance type here we have to configure vpc (already I mentioned this instance I am creating with default vpc , by default aws provided 1 deafult vpc so I am selecting default vpc).

Here I am selecting Number of instance 1 (Only 1 is eligble free tier after that you have to charge)
Network option selecting deafult vpc in subnetting als selectiong enable deafult vpc subnet

Shutdown behavior : use terminate as I will stop my instacne it will terminate the instance.

Then click on next and go to add storage

In storage by default vps already added need to check once, one more thing
In default storage drive is not encrypred and also you cant encrypt.
Click on next to configure security group.
Here you will get the security group. If you have already security group then you can use exisisting or you can create new security group.

Check final and review the instance before launch

Then  click on launch the instance.
Before launching you will ask for key pair. If you have already you can use or can create. Here I am showing create new key pair.
Give the name of the key pair

And download the key pair by simply clicking download option
And then click on LAUNCH

Your instance almost ready . check status check option what showing it will pass 2 test, system test and network test. After completed this 2 state then only launch the instance. Here it is showing initializing

After completed initializing the instance. You have to launch the instance.
For windows instance launcing need to folow the steps.
1st need to get he password. For that we have to use the security key which we download before launching the instance.
Click on action and then go to windows password

Here you have to select the file which you download before lunching then instance

After thet click on decrypt
Password

Here you will get you password for log in the instance

Now start the instance.
For winows we can take it remote for that need to open remote session
Type win+r button and type mstsc

Now you have to enter ip4 address
That address you will get from here

Enter the ip address to remote desktop control

You will be prompt for credentials username and password

Use administrator as deafult username
And password which you decrypt  and click ok

If all are ok it will identify and ask you for the  connection click yes

And it will load the page

Here finally instance launch susseccyfully.

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