137 lines
5.3 KiB
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137 lines
5.3 KiB
HTML
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<TITLE>The Answer Guy 39: Overactive diald</TITLE>
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<H4>"The Linux Gazette...<I>making Linux just a little more fun!</I>"</H4>
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<P> <hr> <P>
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<H1><A NAME="answer">
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border="0" align="middle">
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<font color="#B03060">The Answer Guy</font>
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</A></H1>
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<BR>
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<H4>By James T. Dennis,
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<a href="mailto:linux-questions-only@ssc.com">linux-questions-only@ssc.com</a><BR>
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LinuxCare,
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<A HREF="http://www.linuxcare.com/">http://www.linuxcare.com/</A>
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</H4>
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</center>
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
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height="50" width="60" alt="(?) " border="0"
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>Overactive diald</H3>
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<p><strong>From PCTech1018 on Wed, 10 Mar 1999
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</strong></p>
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<!-- ::
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Overactive diald
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~~~~~~~~~~~~~~~~
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:: -->
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<P><STRONG>Hello Jim,
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<br>I have been following Linux Gazette and your Answer Guy column for about
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6 months now. You do a good job as far as I need (other people may need
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more than I do).
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</STRONG></P>
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<P><STRONG>
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Situation: I have a Linux PC (RedHat 5.2) running as a dial-on-demand
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Internet Gateway using diald. It works great. I have Samba up and
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running as well as named. I can connect to the internet from both my
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Linux PC and Windows95 boxes. When the connection is down, and I attempt
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to connect with <tt>ftp</tt>, <tt>ping</tt>, <tt>http</tt> or whatever,
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<tt>diald</tt> correctly establishes the internet connection to my ISP.
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</STRONG></P>
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<P><STRONG>
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Everything is hunky-dory except one annoyance: <tt>diald</tt> dials every hour
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whether or not someone is attempting an internet connection. How do I
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get this to stop?
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</STRONG></P>
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<P><STRONG>
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Thanks,
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Darren
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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You almost certainly have a <tt>cron</tt> script that is doing
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this. Look at your <TT>/etc/crontab</TT> file to see what's
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running at that time. Some fairly subtle things can
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involve DNS/MX or other Internet services which are
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dynamically bringing up your connection.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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'<tt>diald</tt>' has features to filter out some sorts of traffic
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from its consideration as "activity" for the line. Thus
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it can be configured to ignore some sorts of packets.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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Read the diald man pages for more details on that.
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</BLOCKQUOTE>
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<!-- sig -->
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<p><em>[ The University of Oregon hosts a site which points at lots
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of documentation for Linux. At
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<a href="http://limestone.uoregon.edu/woven/linux-doc-other.html#LMP"
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>http://limestone.uoregon.edu/woven/linux-doc-other.html#LMP</a>
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you should be able to find a website near you carrying manpages,
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if there aren't adequate ones on your installation.
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-- Heather ] </em></p>
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<!-- end 16 -->
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<P> <hr> <P>
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<H5 align="center"><a href="http://www.linuxgazette.com/copying.html"
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>Copyright ©</a> 1999, James T. Dennis
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<BR>Published in <I>The Linux Gazette</I> Issue 39 April 1999</H5>
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<P> <hr> <P>
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