How to use SSH for Mac OS X

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The OpenSSH client is a remote login program for the Mac OS X Terminal. It provides a secure way of logging into a remote machine and executing commands on that remote machine. It sets up a secure encrypted connection between two untrusted hosts over an insecure network.

Things You'll Need

  • Mac OS X
  • Internet Connection
  • Mac's Terminal Utility
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    • 1

      Launch the Terminal application on your computer running Mac OS X. The application is located in Utilities folder within Applications.

    • 2

      In the command-line prompt window that appears, type "man ssh" without the quotation marks. A man (short for manual) page appears. Read the man page to familiarize yourself with using SSH. When you are ready, type the letter q at the prompt to quit the page.

    • 3

      Type "ssh user@hostname" without quotation marks. Substitute the appropriate username for "user." The hostname should be either the domain or the IP address of the remote machine.

    • 4

      You are prompted for a password for the remote machine. Enter the user's password. You are connected to the remote machine and can execute commands remotely.

Tips & Warnings

  • You may see the following message: "Connection refused: port 22 is not accepting connections." Check with the remote administrator to see what port to use. Use the -p000 option after ssh, where 000 is the actual port number.

  • If you get the message "Could not resolve hostname," check and correct the hostname, or IP address and repeat the steps given.

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