18. OpenSSH: Secure Network Communication
OpenSSH is a suite of secure network connectivity tools that replaces telnet, rcp, rsh/rshd, rlogin/rlogind, and ftp/ftpd. Unlike the tools it replaces, OpenSSH tools encrypt all traffic, including passwords. In this way they thwart malicious users who would eavesdrop, hijack connections, and steal passwords.
This chapter covers the following OpenSSH tools:
• scp—Copies files to/from another system
• sftp—Copies files to/from other systems (a secure replacement for ftp)
• ssh—Runs a command on ...