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<TITLE>LinuxFocus Magazine, September/October 2003</TITLE>
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<H1>Welcome to the LinuxFocus September/October 2003
issue</H1>
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Mozilla and netscape-7 users: Watch out! When you download
a page for translation and you use File->Save page as...,
then select in the dialog box "Files of type: Html only" and
not "Files of type: complete". Using "complete" modifies the page
source code!. If you have some kind of translation page where
people can get the articles then please add this note to warn
people.
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<b>Note:</b> This page uses Server Side Includes. If you want to download it
and translate it then use <a
href="ftp://main.linuxfocus.org/pub/lf/English/September2003/index.shtml">ftp://main.linuxfocus.org/pub/lf/English/September2003/index.shtml</a>.
Do not try to download it via http://.... You would get an already server side
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<a href="../../common/images/coverSeptember2003_big.jpg"><img src="../../common/images/coverSeptember2003.png" alt="reading Linuxfocus" align="right" width="400" height="300"></a>
Editorial goes here.
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<H2>LinuxFocus.org Articles</H2>
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<H4>Graphics</H4>
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<LI type="circle">
<img src="../../common/images/frame_tux.gif" alt="[translated]"
align="middle"> <a href="article307.shtml">
Going 3D with Blender: A toy train
</A> , by
Katja Socher<BR>
<p class="clbox">Please use the file <a href="article307.meta.shtml">article307.meta.shtml</a> for any translation work.</p>
<BR>
In this article you learn how to use the
C-API that comes with MySQL.
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<H4>Software Development</H4>
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<LI type="circle">
<img src="../../common/images/frame_tux.gif" alt="[translated]"
align="middle"> <a href="article304.shtml">
The MySQL C API
</A> , by
Özcan Güngör <BR>
<p class="clbox">Please use the file <a href="article304.meta.shtml">article304.meta.shtml</a> for any translation work.</p>
<BR>
In this article you learn how to use the
C-API that comes with MySQL.
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<H4>Applications</H4>
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<img src="../../common/images/frame_tux.gif" alt="[translated]"
align="middle"> <a href="article306.shtml">
Linux on the desktop: A computer for Mom
</A> , by
Guido Socher <BR>
<p class="clbox">Please use the file <a href="article306.meta.shtml">article306.meta.shtml</a> for any translation work.</p>
<BR>
My Mom belongs to a generation which grew up without computers.
She uses now Linux on the desktop and loves it.
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<a name="tip"> </a>
<H4>The LinuxFocus Tip</H4>
You don't need nessus or other scanners to
check all open ports on an ordinary computer without firewall.
It is enough to just run "netstat -a". The output will look
similar to the one below and you can see imediately in the colum "Local Address"
which ports are available for connections:
<pre>
netstat -a
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:login *:* LISTEN
tcp 0 0 *:shell *:* LISTEN
tcp 0 0 *:pop2 *:* LISTEN
tcp 0 0 *:pop3 *:* LISTEN
tcp 0 0 *:imap2 *:* LISTEN
tcp 0 0 *:www *:* LISTEN
tcp 0 0 *:domain *:* LISTEN
...printout continues here...
</pre>
You can even go one step further and check which program
opens a port with the command socklist (normally
part of a package called procinfo):
<pre>
socklist
type port inode uid pid fd name
tcp 513 1007 0 448 5 xinetd
tcp 514 1006 0 448 4 xinetd
tcp 6000 1133 0 680 0 X
tcp 80 1076 0 643 16 httpd
...printout continues here...
</pre>
netstat works on any Unix system but socklist is a Linux specific
feature.
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