242 lines
8.4 KiB
HTML
242 lines
8.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<html>
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<head>
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<title>The Answer Guy Issue 13</title>
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</head>
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<BODY BGCOLOR=#C0C0C0 TEXT=#000000 LINK=#0000FF VLINK=#0020F0
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ALINK=#FF0000 >
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<H4>"Linux Gazette...<I>making Linux just a little more fun!</I>
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"</H4>
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<P> <hr> <P>
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<!-- ===================================================================== -->
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<center>
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<H1><A NAME="answer">
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<img src="../gx/ans.gif" alt="" border=0 align=middle>
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The Answer Guy
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<img src="../gx/ans.gif" alt="" border=0 align=middle>
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</A></H1> <BR>
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<H4>By James T. Dennis,
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<a href="mailto:jimd@starshine.org">jimd@starshine.org</a> </H4>
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</center>
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<p><hr><p>
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<H3>Contents:</H3>
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<li><a HREF="./answer.html#dialup">Dialup Problem</a>
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<li><a HREF="./answer.html#file">File Referencing</a>
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<li><a HREF="./answer.html#modem">Combining Modems for More Speed</a>
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<li><a HREF="./answer.html#server">WWW Server</a>
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</ul>
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<p><hr><p>
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<!--================================================================-->
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<a name="modem"><p></a>
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<h3><img align=bottom alt=" " src="../gx/ques.gif">
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Combining modems for more speed
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</h3>
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Date: Mon, 23 Dec 1996 23:37:00 -0800 (PST) <br>
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From: liberty@pe.net (Keith) <br>
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<p>
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Thanks for reading this post. I have heard that it's possible to set up
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Linux to combine two analog modems into one so as to double the speed of
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a connection. Is this true, how does this work and where can I get more
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info, guidance, how-to, etc.? I have Slackware 96 from Infomagic.
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Your truly,
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Keith Bell
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<blockquote> <B>
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I've heard of this as well. I've never used it but
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let's look it up...
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<p>
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Ahh... that would be the EQL option in the kernel.
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Here's an excerpt from the 'make menuconfig' help pages
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(in the 2.0.27 kernel sources):
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<p>
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<b>Linux Kernel v2.0.27 Configuration</b>
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<p>
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EQL (serial line load balancing) support: <br>
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If you have two serial connections to some other computer (this
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usually requires two modems and two telephone lines) and you use
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SLIP (= the protocol for sending internet traffic over telephone
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lines) or PPP (= a better SLIP) on them, you can make them behave
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has to be supported at the other end as well, either with a similar
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EQL Linux driver or with a Livingston Portmaster 2e. Say Yes if you
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want this and read drivers/net/README.eql.
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<p>
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So that file is : <br>
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EQL Driver: Serial IP Load Balancing HOWTO <br>
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Simon "Guru Aleph-Null" Janes, simon@ncm.com <br>
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v1.1, February 27, 1995 <br>
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<p>
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(After reading this you'll know about as much on this subject
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as I do -- after using any of this you'll know *much* more).
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</B> </blockquote>
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<p><hr><p>
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<!--================================================================-->
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<a name="dialup"><p></a>
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<h3><img align=bottom alt=" " src="../gx/ques.gif">
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Dialup Problem
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</h3>
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Date: Tue, 31 Dec 1996 05:13:51 -0800 (PST) <BR>
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From: <A HREF="mailto:gekko@midusa.net">gekko@midusa.net</A><BR>
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<P>
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I don't know if you can, or even are willing, help me witha problem i
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have. I'm running redhat 4.0, on a p120 w/24 megs of ram, kernel 2.0.18
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<blockquote> <b>
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I'm willing.
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</b> </blockquote>
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anyway...i have this ppp connection problem and no I know knows what the
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problem is, i've looked through the FAQS, HOWTO's, tried #linux on irc,
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etc etc...no one knows what my problem is, so now i'm desperate.
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<P>
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When i try to dial my isp, i get logged in fine, but its REALLY slow.
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i'm using the 'network module' ppp thing in control panel on X.
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mru=1500, asyncmap=0,speed=115000, i couldn't find a place to insert
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mtu, and when i tried putting that in /etc/ppp/options the script this
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program was using wouldn't work.
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<blockquote> <B>
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Usually I see these symptoms when there is an IRQ
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conflict. Some of the data gets through -- with lots
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of errors and lots of retransmits but any activity on the
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rest of the machine -- or even just sitting there --
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and you get really bad throughput and very unreliable
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connections.
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</B> </blockquote>
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I noticed that after i input something and then move the cursor off of
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the windows, it runs at a much faster speed, and it gets annoying moving
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the cursor back and forth.
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I tried dip, minicom, and this 'network module' thing...all are slow
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<blockquote> <B>
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I would do all of your troubleshooting from outside of
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X. Just use the virtual consoles until everything else
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works right. (Fewer layers of things to conflict with
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one another).
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</B> </blockquote>
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if you can shed any light on this, it would be much appreciated.
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thanks
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<blockquote> <B>
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Take a really thorough look at the hardware settings for
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everything in the machine. Make a list of all the cards
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and interfaces -- go through the docs for each one
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and map out which ones are using which interfaces.
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<P>
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I ended up going through several combinations of
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video cards and I/O cards before I got my main system
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all integrated. Luckily newer systems are getting
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better (this is a 386DX33 with 32Mb of RAM and a
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2Mb video cards -- two IDE's, two floppy drives, two
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SCSI hardisks, an internal CD-ROM, and external magneto
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optical drive, a serial mouse, a modem (used for dial-in
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dial-out, uucp, and ppp) and null modem (I hook a laptop
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to it as a terminal for my wife) and an ethernet card.
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<P>
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Another thing to check is the cabling between your serial
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connector and your modem. If you're configured for
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XON/XOFF you're in trouble. If you're configured for
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hardware flow control and you don't have the appropriate
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wires in your cable than you're in worse trouble.
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<P>
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Troubleshooting of this sort really is best done over
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voice or in person. There are too many steps to
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the troubleshooting and testing to do effectively
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via e-mail.
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</B> </blockquote>
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<p><hr><p>
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<!--================================================================-->
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<a name="file"><p></a>
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<h3><img align=bottom alt=" " src="../gx/ques.gif">
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File Referencing
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</h3>
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Date: Wed, 18 Dec 1996 00:16:42 -0800 (PST) <br>
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<pre>
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> "A month of sundays ago L.U.S.T List wrote:"
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>> 1. I do not know why on Linux some program could not run
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>> correctly.
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>> for example
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>> #include <stdio.h>
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>> main()
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>> {
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>> printf("test\n");
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>> fflush(stdout);
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>> }
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>> They will not echo what I print.
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>
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> Oh yes it will. I bet you named the executable "test" ... :-)
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> (this is a UNIX faq).
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>
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</pre>
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<blockquote> <B>
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I really suggest that people learn the tao of "./"
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<p>
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This is easy -- any time you mean to refer to any file
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in the current directory precede it with "./" -- this
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forces all common Unix shells to refer to the file in
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THIS directory. It solves all the problems with files
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that start with dashes and it allows you to remove :.:
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from your path (which *all* sysadmins should do right
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NOW).
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<p>
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That is the tao of "./" -- the two keystrokes that can
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save you many hours of grief and maybe save your whole
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filesystem too.
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</B> </blockquote>
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<p><hr><p>
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<!--================================================================-->
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<a name="server"><p></a>
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<h3><img align=bottom alt=" " src="../gx/ques.gif">
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WWW Server?
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</h3>
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Date: Tue, 31 Dec 1996 05:19:11 -0800 (PST) <BR>
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From: (Paulo Marcio Villaca Veiga) <A
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HREF="mailto:paulom@cedro.fisica.ufmg.br">paulom@cedro.fisica.ufmg.bri</a><BR>
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<P>
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Where can I get (or buy) a WWW server for LINUX? <BR>
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Please, help me.
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<blockquote> <B>
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Web servers are included with most distributions
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of Linux. The most popular one right now is
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called Apache. You can look on your CD's
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(if you bought a set) or you can point a
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web client (browser) at http://www.apache.org
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for more information and for an opportunity to
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download a copy.
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<P>
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There are several others available -- however
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Apache is the most well known -- so it will be
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the best for you to start with. It is also
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widely considered to offer the best performance
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and feature set (of course that is a matter
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of considerable controversy among "connosieurs"
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just as is the ongoing debate about 'vi' vs. 'emacs').
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</B> </blockquote>
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thank you
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<blockquote> <B>
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You're welcome.
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</B> </blockquote>
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<P> <hr> <P>
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<center><H5>Copyright © 1997, James T. Dennis <BR>
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Published in Issue 13 of the Linux Gazette</H5></center>
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<P> <hr> <P>
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<!--================================================================-->
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<A HREF="./index.html"><IMG SRC="../gx/indexnew.gif" ALT="[ TABLE OF
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CONTENTS ]"></A> <A HREF="../index.html"><IMG SRC="../gx/homenew.gif"
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ALT="[ FRONT PAGE ]"></A>
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<A HREF="lg_bytes13.html"><IMG SRC="../gx/back2.gif" ALT=" Back "></A>
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<A HREF="./comdex.html"><IMG SRC="../gx/fwd.gif" ALT=" Next "></A>
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</td></tr></table>
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</body>
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</html>
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