Chapter 17. Secure Remote Logins and File Copying

In This Chapter

• A Quick Introduction to SSH Encryption

• Starting OpenSSH

• Testing the Status of SSH

• The /etc/ssh/sshd_config File

• Using SSH to Log Into a Remote Machine

• What to Expect with Your First Login

• Deactivating TELNET After Installing SSH

• Executing Remote Commands on Demand with SSH

• SCP: A Secure Alternative to FTP

• SFTP: Another Secure Alternative to FTP

• Using SSH and SCP Without a Password

• Conclusion

One of the most popular file transfer and remote login Linux applications is OpenSSH, which provides a number of ways to create encrypted remote terminal and file transfer connections between clients and servers. The OpenSSH Secure Copy (SCP) and Secure FTP (SFTP) programs are secure replacements for FTP, and Secure Shell (SSH) is often used as a stealthy alternative to TELNET. OpenSSH isn't limited to Linux; SSH and SCP clients are available for most operating systems including Windows.