Chapter 19. OpenSSH: Secure Network Communication

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IN THIS CHAPTER

About OpenSSH

708

OpenSSH Clients

711

JumpStart: Using ssh and scp

711

sshd: OpenSSH Server

720

JumpStart: Starting the sshd Daemon

720

Troubleshooting

724

Tunneling/Port Forwarding

725

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OpenSSH is a suite of secure network connectivity tools that replaces telnet/telnetd, rcp, rsh/rshd, rlogin/rlogind, and ftp/ftpd. Unlike the tools they replace, OpenSSH tools encrypt all traffic, including passwords. In this way they thwart malicious users who attempt to eavesdrop, hijack connections, and steal passwords.

This chapter covers the following OpenSSH tools:

  • scp. Copies files to and from another system

  • sftp. Copies files to and from other systems (a secure replacement ...

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