![]() In this tutorial, we will walk you through the steps of generating SSH keys with PuTTY and connecting them with a VPS. Irrespective of the OS you’re using, you can leverage key-pair authentication to protect your resources and enjoy a hassle-free experience. ![]() In fact, Linux users can configure the Linux server and use key-based authentication too. Undeniably, SSH key-pair authentication is a highly secure and reliable way of connecting with servers. Only if both keys pass the validation and there is a match, the connection is made, else the connection is denied. The private key gets validated with the public key to make connections. The private key is kept on your local machine, whereas, the public key gets uploaded to the server. You generate a pair of keys (private and public keys) and match the server to the client. The server accepts connections, while the client is responsible for the Transmission Control Protocol (TCP) to connect with the server. SSH Key authentication uses a client-server model to exchange data from the server and the client. In this tutorial, we will use the “RSA key” method with the default port sizeĢ048 to generate private and public keys and connect with the VPS. If you’re generating keys for the first time, RSA is the preferred option. With SSH, you get an option to choose either “RSA” (Rivest-Shamir-Adleman) or “DSA” (“Digital Signature Algorithm”) keys. Today, SSH key-based authentication is the most reliable mode of authentication and a favorite among Linux users. The cryptographic algorithms used in SSH keys give an advanced level of security to protect servers, where deciphering becomes impossible, even through brute force. You need a robust and advanced method like SSH key-pair authorization to access, manage and control servers. The standard practice of using a username and password is highly insecure, unsafe, and ineffective. Protection from cyber-attacks is of crucial importance to streamline workflows and to ensure business continuity. When you have successfully authenticated, you are connected to your new Droplet.Security is a prime consideration for server admins, especially when there is a need to access servers remotely at regular intervals. If you uploaded SSH keys, you are either connected directly or prompted for the password you set on your key. Choose Yes to save the server identity in PuTTY’s cache or No to connect without saving the identity.Īfter PuTTY starts, type in the root password that you chose when you created the Droplet. The first time you connect to the Droplet, PuTTY asks you to confirm that you trust the server. Once you have loaded your preferences, click the Open button to connect to your Droplet. This auto-fills all of the fields with the values you initially selected. Once you have a session saved, you can recall these values at any time by returning to the Session screen, selecting the session you would like to use in the Saved Sessions section, and clicking Load to recall the settings. Once your preferences are saved, you are ready to connect to the Droplet. Click on Session in the left sidebar, then add a name in the text box under Saved Sessions and click Save on the right. Save your Preferencesįinally, you can save these preferences to avoid typing them manually in the future. For the initial setup, this should be the root user, which is the administrative user of your server. Next, in the Connection subheading in the Data configuration section, enter your server’s username in the Auto-login username field. Search for the private key file, which ends in. ![]() In the Private key file for authentication section, click the Browse button. If you previously created an SSH key pair, uploaded the public key to your account, and specified the key when you created the Droplet, open the Auth subcategory. If you will use a username and password to connect to your Droplet, skip this step. Make sure 2 is selected for SSH protocol version. Next, click on SSH in the left sidebar (under Connection). Confirm that the Port is set to 22 and that the Connection type SSH is selected. On the PuTTY Configuration screen, fill in the field labeled Host Name (or IP Address) with your Droplet’s IP address, which you can find in the control panel. Add the Droplet IP and Connection Details The following steps guide you through configuring a profile to connect to your Droplet. Once PuTTY is installed, start the program. If you don’t have PuTTY installed, visit the PuTTY website and choose the Windows installer from the Package files list. It allows you to securely connect to remote servers from a local Windows computer. PuTTY is an open-source SSH and Telnet client for Windows. Each Droplet you create is a new server you can use, either standalone or as part of a larger, cloud-based infrastructure. ![]() DigitalOcean Droplets are Linux-based virtual machines (VMs) that run on top of virtualized hardware. ![]()
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