SSH Protocol and ssh/scp Commands

This chapter provides introductions and tutorial notes on SSH (Secure SHell) protocol and 'ssh/scp' commands. Topics include SSH connection steps; user password and public key authentication methods; SSH server configuration settings; 'ssh' for remote login sessions; 'scp' for copying remote files.

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SSH (Secure SHell) Protocol

How Does SSH Work

SSH Connection Example - "ssh" Remote Terminal Session

SSH Server Verification with Server Public Key

Set Up User Public Key Authentication

SSH Server Configuration

"ssh" - SSH Client for Remote Login

"scp" - Secure Copy Remote Files

"ssh -vvv" - Very Very Verbose Mode

SSH "debug2: we did not send a packet, disable method"


Table of Contents

 About This Book

 Introduction to Linux Systems

 Cockpit - Web Portal for Administrator

 Process Management

 Files and Directories

 Users and Groups

 File Systems

 Block Devices and Partitions

 LVM (Logical Volume Manager)

 Installing CentOS

 SELinux - Security-Enhanced Linux

 Network Connection on CentOS

 Internet Networking Tools

SSH Protocol and ssh/scp Commands

 Software Package Manager on CentOS - DNF and YUM

 vsftpd - Very Secure FTP Daemon

 LDAP (Lightweight Directory Access Protocol)

 Administrative Tasks


 Full Version in PDF/EPUB