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SSH/Telnet

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  • 17-01-2002 1:40pm
    #1
    molie
    Closed Accounts Posts: 5 ✭


    What are the actual differences between secure shell and telnet??


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    #2
    Gavin
    Registered Users Posts: 4,676 ✭✭✭Gavin


    telnet is unencrypted. It transmits as plain text.

    SSH is encrypted. As to what sort of encryption etc that it uses.. The standard is triple des or blowfish.. i have been told. Go search it on the net.

    It also makes use of certificates.. as I say do a search for it.


    Gav


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    #3
    moist
    Closed Accounts Posts: 296 ✭✭moist


    It can also be used for other handy things like tunneling and port forwarding.
    Its more a suite of tools to replace older versions where were never really desined with security in mind.
    ssh replaces telnet and rlogin.
    scp replaces rcp.
    sftp replaces ftp.

    You can also use public/private rsa/dsa keys so for people to use your account they need to
    get their hands on your private key _and_ your passphrase, not just your password.
    Also with these keys you can run an ssh-agent on your machine which will cache your passphrase
    for a key so you don't have to type it every
    time you log into a machine, very handy if you admin a lot of boxes, though it does reduce security.

    the OpenSSH FAQ should cover most of your questions.


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