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Documentation for SUPDUP.

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Lars Brinkhoff
2019-04-04 15:48:56 +02:00
committed by Simon Tatham
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doc/intro.but
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\C{intro} Introduction to PuTTY
PuTTY is a free SSH, Telnet and Rlogin client for Windows
PuTTY is a free SSH, Telnet, Rlogin and SUPDUP client for Windows
systems.
\H{you-what} What are SSH, Telnet and Rlogin?
\H{you-what} What are SSH, Telnet, Rlogin and SUPDUP?
If you already know what SSH, Telnet and Rlogin are, you can safely
skip on to the next section.
If you already know what SSH, Telnet, Rlogin and SUPDUP are, you can
safely skip on to the next section.
SSH, Telnet and Rlogin are three ways of doing the same thing:
SSH, Telnet, Rlogin and SUPDUP are four ways of doing the same thing:
logging in to a multi-user computer from another computer, over a
network.
@ -22,19 +22,19 @@ at the same machine you are typing commands to. The commands, and
responses, can be sent over a network, so you can sit at one
computer and give commands to another one, or even to more than one.
SSH, Telnet and Rlogin are \i\e{network protocols} that allow you to
do this. On the computer you sit at, you run a \i\e{client}, which
makes a network connection to the other computer (the \i\e{server}).
The network connection carries your keystrokes and commands from the
client to the server, and carries the server's responses back to
you.
SSH, Telnet, Rlogin and SUPDUP are \i\e{network protocols} that allow
you to do this. On the computer you sit at, you run a \i\e{client},
which makes a network connection to the other computer (the
\i\e{server}). The network connection carries your keystrokes and
commands from the client to the server, and carries the server's
responses back to you.
These protocols can also be used for other types of keyboard-based
interactive session. In particular, there are a lot of bulletin
boards, \i{talker systems} and \i{MUDs} (Multi-User Dungeons) which support
access using Telnet. There are even a few that support SSH.
You might want to use SSH, Telnet or Rlogin if:
You might want to use SSH, Telnet, Rlogin or SUPDUP if:
\b you have an account on a Unix or VMS system which you want to be
able to access from somewhere else
@ -47,22 +47,22 @@ your commands for you.)
\b you want to use a \i{bulletin board system}, talker or MUD which can
be accessed using Telnet.
You probably do \e{not} want to use SSH, Telnet or Rlogin if:
You probably do \e{not} want to use SSH, Telnet, Rlogin, or SUPDUP if:
\b you only use Windows. Windows computers have their own
ways of networking between themselves, and unless you are doing
something fairly unusual, you will not need to use any of these
remote login protocols.
\H{which-one} How do SSH, Telnet and Rlogin differ?
\H{which-one} How do SSH, Telnet, Rlogin and SUPDUP differ?
This list summarises some of the \i{differences between SSH, Telnet
and Rlogin}.
This list summarises some of the \i{differences between SSH, Telnet,
Rlogin and SUPDUP}.
\b SSH (which stands for \q{\i{secure shell}}) is a recently designed,
high-security protocol. It uses strong cryptography to protect your
connection against eavesdropping, hijacking and other attacks. Telnet
and Rlogin are both older protocols offering minimal security.
connection against eavesdropping, hijacking and other attacks. Telnet,
Rlogin and SUPDUP are all older protocols offering minimal security.
\b SSH and Rlogin both allow you to \I{passwordless login}log in to the
server without having to type a password. (Rlogin's method of doing this is