Linux Tutorial : Putty Setup

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How to Install and Configure PuTTY for Remote Linux Access

When working with remote Linux servers, cloud virtual machines, or remote practice labs like Linuxzoo, you need a reliable terminal emulator to interact with the command line. PuTTY is one of the most widely used, free, and open-source SSH and telnet clients available for Windows.

1. What is PuTTY?

PuTTY is a lightweight terminal client that enables secure remote connections over network protocols such as SSH (Secure Shell), Telnet, and Raw Socket connections. It provides a straightforward interface to execute shell commands on a remote machine just as if you were sitting right in front of it.

2. Step-by-Step Installation and Setup

1. Download PuTTY: Visit the official PuTTY download website and download the standalone executable (putty.exe) or the installer package suitable for your Windows architecture (32-bit or 64-bit).
2. Launch the Application: Run putty.exe to open the PuTTY Configuration window. No complex setup or installation overhead is required for the standalone executable.
3. Enter Host Details:
   • In the Host Name (or IP address) field, type the IP address or domain name of your Linux server.
   • Set the Port (default for SSH is 22; for Telnet it is 23).
   • Choose your Connection type (e.g., SSH or Telnet).
4. Save Your Session: Enter a name under Saved Sessions and click Save so you don't need to retype the IP address each time you connect.
5. Connect to Server: Click Open. If connecting for the first time, accept the security host key alert.
6. Authenticate: Enter your Linux login username and password when prompted in the terminal window to begin executing commands.

3. Essential PuTTY Features for Beginners

• Session Profiles: Save connection settings for multiple machines or cloud instances.
• Terminal Customization: Adjust font styles, cursor colors, and window dimensions to your liking.
• Copy and Paste: Simply select text with your mouse inside the terminal to copy it, and right-click anywhere to paste clipboard content.

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