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Remote Access

Remote Access . Telnet FTP. Applications and Communications. Telnet Program for accessing systems remotely. Available on Windows and most Unix systems. Many different applications for windows are available free on the internet. Some are easy and free…. Putty.exe Offers secure login.

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Remote Access

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  1. Remote Access • Telnet • FTP

  2. Applications and Communications • Telnet • Program for accessing systems remotely. • Available on Windows and most Unix systems. • Many different applications for windows are available free on the internet. • Some are easy and free…. • Putty.exe Offers secure login. • Others are ‘systems’ and may cost money • Cygwin, x-win32

  3. Telnet Windows • A telnet program comes standard on all Windows installations. • Start - > run - > telnet [remote address] • [remote address] is the full address of the system you wish to connect to. • To access miller • telnet miller.cs.uwm.edu • To access your alpha account • telnet alphaR.csd.uwm.edu (replace R in alphaR with the first letter of your last name.)

  4. Telnet Unix • telnet is installed on miller and grid as well. Useful if you need to access a different account or a different system (i. e. alpha) • At command prompt type telnet [remote address] • miller.cs: telnet alphaR.csd.uwm.edu • You’ll be prompted for login and password • With both UNIX and Windows telnet, once you are logged in the telnet window becomes your UNIX xsession window. • Can use most of the commands you would normally use on a local machine.

  5. Telnet in CEAS Labs • Has standard Windows telnet • Use SSH Secure Shell Client, click to launch. • Click ‘quick connect key’ • Will prompt you for a host name and login name. Enter them, click <Connect> • The SSH client looks like the UNIX xsession that you see in e270. • You can launch as many telnet sessions as you need. So if you need 3 windows, launch tree sessions of telnet / SSH / Putty

  6. Putty - > Easy, Free telnet client • General search for ‘Putty.exe’ will give you a download site. • http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html • There is no installation involved. • Offers secure shell login • Features UNIX style cut and paste • Most current version supports emacs • Can modify terminal settings (color/size/fonts)

  7. Telnet Don’t s • Cannot use any external applications that exist on the UNIX system. • For example, you cannot run Netscape or emacs in telnet. • Cannot explicitly save a file to miller from your local machine. • Cannot print to your local machine from the telnet window.

  8. FTP – File Transfer Protocol • Easiest and most convenient way to transfer files between systems. • Basic ftp comes standard on all Windows installations. • Many free GUI’s of FTP available. Get one. They are easier to use than command line FTP • WS_ftp • Cuteftp • Need to know three things before beginning: • 1.) Address • 2.) Login • 3.) Password

  9. FTP - Windows • Working from the command line. Both Windows and Unix command line work mostly the same with the same commands. • Windows command line ftp • Start - > run - > ftp [address of remote system] • Launches command window.

  10. FTP - Windows • Commands. • help – Lists all the commands for the system you are on. • open [address] • ex. ftp> open miller.cs.uwm.edu • dir or ls - lists all directories/files. • cd [directory] • get/send (or put) [filename] - You send from the local machine and get from the distant machine. • close - close ftp connection • quit - quit ftp session

  11. FTP – UNIX • Works the same as Windows • Run from command prompt: • miller.cs: ftp • ftp> open alphar.csd.uwm.edu • Same commands….. • help, open, close, dir, quit • To get a brief description of a particular command • help [command] • Example. ftp> help open

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