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What's OpenSSH?
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Mainframe Glossary 94 #zmainframes #mainframes #openssh #sshorts
OpenSSH, also known as OpenBSD Secure Shell, is a suite of secure networking utilities based on the Secure Shell (SSH) protocol. It provides a safe and efficient way to remotely access and manage computer systems over an unsecured network. Here's a breakdown of its key points:
What it does:
Secure remote access: It allows you to log in to a remote computer and execute commands as if you were sitting in front of it, all while encrypting your connection and protecting your credentials.
Secure file transfer: You can securely transfer files between computers using tools like scp and sftp, which are also based on the SSH protocol.
Additional features: OpenSSH offers various advanced features like secure tunneling, port forwarding, and key-based authentication for even more secure and flexible connections.
Benefits:
Secure: Encrypts all communication between the client and server, protecting your data from eavesdropping and tampering.
Free and open-source: Freely available with open-source code, making it accessible and customizable.
Widely supported: Runs on most operating systems, including Linux, macOS, Windows, and even mainframes.
Versatile: Used for various tasks like system administration, file transfers, software deployment, and more.
Components:
Client: The program you use to connect to the remote server (e.g., ssh command).
Server: The program that runs on the remote server and listens for connections (e.g., sshd daemon).
Utilities: Additional tools like scp, sftp, ssh-keygen, and more for specific tasks.
Who uses it:
System administrators for remote server management.
Developers for deploying code to production servers.
Researchers for accessing remote computational resources.
Anyone who needs a secure way to connect to a remote computer.
OpenSSH vs. commercial SSH:
OpenSSH is the free and open-source option.
Commercial SSH options offer additional features like user management, compliance tools, and graphical user interfaces.
OpenSSH, also known as OpenBSD Secure Shell, is a suite of secure networking utilities based on the Secure Shell (SSH) protocol. It provides a safe and efficient way to remotely access and manage computer systems over an unsecured network. Here's a breakdown of its key points:
What it does:
Secure remote access: It allows you to log in to a remote computer and execute commands as if you were sitting in front of it, all while encrypting your connection and protecting your credentials.
Secure file transfer: You can securely transfer files between computers using tools like scp and sftp, which are also based on the SSH protocol.
Additional features: OpenSSH offers various advanced features like secure tunneling, port forwarding, and key-based authentication for even more secure and flexible connections.
Benefits:
Secure: Encrypts all communication between the client and server, protecting your data from eavesdropping and tampering.
Free and open-source: Freely available with open-source code, making it accessible and customizable.
Widely supported: Runs on most operating systems, including Linux, macOS, Windows, and even mainframes.
Versatile: Used for various tasks like system administration, file transfers, software deployment, and more.
Components:
Client: The program you use to connect to the remote server (e.g., ssh command).
Server: The program that runs on the remote server and listens for connections (e.g., sshd daemon).
Utilities: Additional tools like scp, sftp, ssh-keygen, and more for specific tasks.
Who uses it:
System administrators for remote server management.
Developers for deploying code to production servers.
Researchers for accessing remote computational resources.
Anyone who needs a secure way to connect to a remote computer.
OpenSSH vs. commercial SSH:
OpenSSH is the free and open-source option.
Commercial SSH options offer additional features like user management, compliance tools, and graphical user interfaces.
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