Secure Shell (SSH)

In this tutorial I will show you what is SSH and why we use it.
SSH(Secure Shell) Protocol:
SSH or Secure Shell is a cryptographic network protocol for operating network services securely over an unsecured network. Typical applications include remote command-line, login, and remote command execution, but any network service can be secured with SSH.

SSH provides a secure channel over an unsecured network by using a client–server architecture, connecting an SSH client application with an SSH server. The protocol specification distinguishes between two major versions, referred to as SSH-1 and SSH-2. The standard TCP port for SSH is 22. SSH is generally used to access Unix-like operating systems, but it can also be used on Microsoft Windows. Windows 10 uses OpenSSH as its default SSH client and SSH server.

SSH was designed as a replacement for Telnet and for unsecured remote shell protocols such as the Berkeley rsh and the related rlogin and rexec protocols. Those protocols send information, notably passwords, in plaintext, rendering them susceptible to interception and disclosure using packet analysis. The encryption used by SSH is intended to provide confidentiality and integrity of data over an unsecured network, such as the Internet. (ref: https://en.wikipedia.org/wiki/SSH_(Se...)
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What is Secure Shell (SSH) and How Does it Work?
SSH configuration on a cisco router/switch in cisco packet tracer | #SSHconfigurationInPacketTracer
SSH (Secure Shell) configuration,
Secure Shell (SSH) configuration on a switch and router in Packet Tracer,
Configuring SSH on a router in Packet Tracer.
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