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    Logging into Telnet

    All uses of telnet begin with the designation of a destination; an address that you want to go to; a computer to be accessed. Although most would automatically take the direct route by telneting directly to their intended destination, one should always consider the option of not taking a direct route. As mentioned elsewhere the internet has very little provisions regarding privacy. When you telnet to a site the host (server) that accepts your entry, it also records where you have telneted from. If this is a concern of yours, it can be possible to telnet along several sites to your destination to cloud your trail and original departure point.

    With an address it may sometimes be beneficial to also have a port to telnet to. If you do not have one you will be sent to the default telnet port, and generally this is the right thing to do. However sometimes with M.U.D. or irc a special port number is needed. Similarly with other on-line services a special port number is needed. Other options in participating with a system are available through a number of other open ports that will allow telnet access. There are thousands of ports on a machine and there's no telling what some of them could be set up to do.

    Generally the command for telneting to a site is:

    • telnet presence.lglobal.com

    or with port numbers

    • telnet presence.lglobal.com 23

    Basically you start the command then give the address with the option of including the port number. Sometimes this command is also referred to as open.

    If you have the correct address and the appropriate port number if required, you will be then prompted to login. If you do not have instructions on what to login, or a login name of your own, well you're probably out of luck. It's always worth trying guest or new, sometimes this is the method of getting an account of your own. If you have a working login you will then usually be prompted for a password. Again, if you don't have one you're probably out of luck. If you have successfully passed these two points you are then in the system, at which point you're usually on your own. Each system tends to have its own uniqueness, and if your telneting for a service you will be automatically in some sort of environment that is probably user-friendly and menu driven.

    An important keyboard command to know is:

    • Ctrl ] or ^].

    It will always remove you from the environment of the system that you are on, and return you to the telnet environment where you'll see a telnet prompt and can type quit or close if you want out. Otherwise just press a clear return and you will return to the system you were on. When you have done your session on the machine type logout or exit to return to your original destination. Remember if you've taken a round-about route use successive logouts to get home.


    Training report sheet

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    Have you read this page

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    What other uses can you think of for the telnet application that have not been mentioned so far?

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