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Do You Telnet into bama.ua.edu?If you use a telnet program like TeraTerm to log into bama.ua.edu, you should know that you now have a simple, more secure, alternative. The standard telnet protocol passes your username, password, and all other commands across the network in plain text. This means that someone using a program called a "sniffer" could easily grab your username and password and use them to gain access to bama and your account. The way to prevent this is to encrypt all traffic before it's sent across the network, which can be done using a protocol called Secure Shell. You have a choice of Secure Shell programs to use. You can get the Secure Shell 1 plugin for TeraTerm or a separate Secure Shell 2 program from SSH Communications. The SSH Secure Shell 2 program also has a secure FTP client for file transfers to bama. You can download either program from the Seebeck Software Library (computercenter.ua.edu/software). We encourage you to help protect your data and the security of the bama server by using the new secure protocols. However, other machines that you may access through telnet or FTP may not be running Secure Shell so you will still need to keep TeraTerm and WS_FTP around for now. (TeraTerm gives you the option of using a plain telnet login while SSH Secure Shell 2 does not.) If you administer a Unix workstation and would like to be able to use Secure Shell to access your machine, you can download the Secure Shell software for servers from bama.ua.edu/~unixinfo/pickup/ssh. |
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