# Using a Terminal Emulator - PuTTy

### What is a Terminal Emulator

A terminal emulator is a computer program that replicates the functionalities of a physical computer terminal. With the help of a graphical user interface (GUI) or a command-line interface (CLI) users can interact with an operating system (OS). 

Terminal emulators are commonly used to access and control remote computers or network devices. They provide a way to enter commands, execute programs, and manage files on a computer system. Popular terminal emulators include programs like PuTTY, iTerm, and Terminal on macOS.

### How to use PuTTY

PuTTY is an SSH and telnet client that is widely used and helps users connect to their [VPS](/tutorials/decenomy-masternodes/setting-up-a-virtual-private-server-vps.md)<mark style="color:blue;">.</mark>

### Step 1&#x20;

* Download and install PuTTY <https://www.putty.org/>&#x20;

### Step 2

* Open the client and input the IP address and port of your VPS
* Ensure 'SSH' is checked&#x20;
* Click on the 'Open' button to initiate the connection

<figure><img src="/files/NWpNuvvy6CcRYh8aYCOe" alt=""><figcaption></figcaption></figure>

NB: You might be required to accept an SSH certificate if it's your first time connecting to the VPS.

### Step 3

* Next, you will be required to log in using your username and password&#x20;

<figure><img src="/files/MpobQ2uqKs82tSXuEysa" alt=""><figcaption></figcaption></figure>

* Press  "Enter" on your keyboard once you are done. You will then have access to your server as seen in the image below:

<figure><img src="/files/zMAzqyEADa7vNdtZhjQC" alt=""><figcaption></figcaption></figure>


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