177 lines
3.5 KiB
HTML
177 lines
3.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>The Support Machines</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="The Mock Mainframe Mini-HOWTO"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="The Terminals"
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HREF="x187.html"><LINK
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REL="NEXT"
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TITLE="Putting the Pieces together"
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HREF="x346.html"></HEAD
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><BODY
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CLASS="section"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>The Mock Mainframe Mini-HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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ACCESSKEY="P"
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>Prev</A
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></TD
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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>Next</A
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></TD
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></TR
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="section"
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><H1
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CLASS="section"
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><A
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NAME="AEN337"
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></A
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>5. The Support Machines</H1
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><P
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> In theory, you should need no other computers than the mock mainframe and
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whatever you use as terminals. In practice, you'll probably want additional
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machines for specific tasks. Usually this will be because of security, not
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performance.
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</P
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><P
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> For example, let's assume you have a network with a dial-up connection to
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the Internet for email and browsing. Of course you could put all the hard-
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and software required on the mock mainframe and not see much of a
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performance hit (in fact, if your network is slow, it might even be
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faster). But that puts your most valuable computer right where everybody
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who is on the Internet — which increasingly means anybody on the planet —
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can attack it.
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</P
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><P
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> For better security, put a machine between the mock mainframe and the
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outside world. Make sure this <STRONG
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>Guardian</STRONG
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> machine is not only heavily
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fortified, but also expendable, so if it is taken over by the forces of
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evil or compromised in any other way, you won't lose anything valuable. To
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lock down the network in an emergency, all you have to do now is to
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physically turn off the power of the guardian machine (assuming this is the
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only entry point to your local net). This can be very useful if you can't
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sit down and go though security measures the moment you see a problem,
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because, say, your boss at the burger grill just does not realize how
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important that dorm network is and unfeelingly insists you show up on time
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to flip the meat.
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</P
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><P
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> Other functions you might want to isolate on different machines are web- or
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other servers on your net that people from the Internet can access. You can
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also have a support machine tend your Linux Terminals (a <STRONG
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>Terminal Mother</STRONG
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>)
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or to burn CDs (a <STRONG
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>Burner</STRONG
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>).
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</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="x187.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="x346.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>The Terminals</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Putting the Pieces together</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |