SSH is actually a suite of three utilities - slogin, ssh, and scp - that are secure versions of the earlier UNIX utilities, rlogin, rsh, and rcp. SSH commands are encrypted and secure in several ways. In short, SSH allows you to connect to your server securely to perform Linux command-line operations. To get started, please visit your Server Guide in the Account Center , and make sure you have the following information ready:. You will need to set your root password in the Account Center the first time you connect to your server.
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How Does SSH Server Work?
OpenSSH is a powerful collection of tools for the remote control of, and transfer of data between, networked computers. You will also learn about some of the configuration settings possible with the OpenSSH server application and how to change them on your Ubuntu system. OpenSSH is a freely available version of the Secure Shell SSH protocol family of tools for remotely controlling, or transferring files between, computers. OpenSSH provides a server daemon and client tools to facilitate secure, encrypted remote control and file transfer operations, effectively replacing the legacy tools. The OpenSSH server component, sshd, listens continuously for client connections from any of the client tools.
SSH is a protocol for securely exchanging data between two computers over an untrusted network. SSH protects the privacy and integrity of the transferred identities, data, and files. It runs in most computers and in practically every server. The SSH protocol and SSH keys secure hundreds of millions of maintenance sessions, file transfers, and automated processes - every day.
Updated Wednesday, October 7, , by Linode. In the Getting Started guide, you learned how to deploy a Linux distribution, boot your Linode and perform basic administrative tasks. Keeping your software up to date is the single biggest security precaution you can take for any operating system. Software updates range from critical vulnerability patches to minor bug fixes, and many software vulnerabilities are actually patched by the time they become public. There are arguments for and against automatic updates on servers. Not all package managers make that easy or possible, though. The practicality of automatic updates is something you must judge for yourself because it comes down to what you do with your Linode. Bear in mind that automatic updates apply only to packages sourced from repositories, not self-compiled applications.