Tutorial Series

How To Troubleshoot SSH

SSH is the primary method available for managing DigitalOcean Droplets. Dealing with SSH errors or failures can be frustrating because the errors themselves often prohibit you from accessing your servers. This troubleshooting series covers some of the most common issues you may encounter with SSH, how to address them, when to consider re-deploying, and how to get further support.
  • SSH is the primary method available for managing DigitalOcean Droplets. Dealing with SSH errors or failures can be frustrating because the errors themselves often prohibit you from accessing your servers. This troubleshooting series covers some of the most common issues you may encounter with SSH, how to address them, when to consider re-deploying, and how to get further support.
  • When connecting an SSH client to an SSH server, basic network connectivity must be properly established. This tutorial will cover how to identify some common situations that would cause issues at this point in the process, how to resolve those situations, and additional resources to prevent them in the future
  • This installment in the series covers protocol initiation issues. Once a connection is successfully established, the SSH protocol negotiates an encrypted connection with the client based on establishing trust. Before you can even verify who you are on the system, the system will attempt to establish an encryption method with your client. There are a few unique issues that can occur in this scope, and this tutorial covers how to identify them, how to resolve them, and additional resources to prev
  • This tutorial covers SSH authentication issues. Once the connection is established and the protocol is initiated to communicate securely, the system can then verify the user connecting to the system. This layer of authentication supports a wide variety of authentication mechanisms, but this walkthrough will cover the two most common: password and private/public keypair.
  • Once your SSH connection is established and you are authenticated, the remote shell environment is then executed. There are a couple of issues that can occur at this point as described below, followed by actions you can take to address them.