[no subject]

Before tracerouting, I do:

     ping -c 1 yahoo.com

If it says "unknown host" or fails to output its first line with the
DNS resolution that normally looks like:

     PING yahoo.com (216.109.112.135) from 10.11.12.13 : 56(84) bytes...

then DNS is down.

Regardless of that, know the IP of a system on the Internet and then
do a traceroute to its numeric IP, e.g.,

     traceroute 216.109.112.135

You may want to give the "-n" flag to not do DNS resolution.

Bob Toxen
bob at verysecurelinux.com               [Please use for email to me]
<a  rel="nofollow" href="http://www.verysecurelinux.com";>http://www.verysecurelinux.com</a>        [Network&amp;Linux/Unix security consulting]
<a  rel="nofollow" href="http://www.realworldlinuxsecurity.com";>http://www.realworldlinuxsecurity.com</a> [My book:&quot;Real World Linux Security 2/e&quot;]
Quality Linux &amp; UNIX security and SysAdmin &amp; software consulting since 1990.

&quot;Microsoft: Unsafe at any clock speed!&quot;
   -- Bob Toxen 10/03/2002

On Thu, Jan 27, 2005 at 12:29:16PM -0500, Brian MacLeod wrote:

&gt; &gt; -----Original Message-----
&gt; &gt; From: ale-bounces at ale.org [<a  rel="nofollow" href="mailto:ale-bounces";>mailto:ale-bounces</a> at ale.org] On 
&gt; &gt; Behalf Of Jim Popovitch
&gt; &gt; Sent: Thursday, January 27, 2005 12:16 PM


&gt; &gt; I'm seeing bid DNS issues all around today (major latency at 
&gt; &gt; times).  Is it possible that SpeedFactory is A-OK but they 
&gt; &gt; are having problems with their DNS servers?

&gt; &gt; -Jim P.


&gt; I wish it were that easy.  No, something a little worse than that, as I
&gt; cannot reach my home server using ssh or openvpn via the IP address.
&gt; Good thing I'm not home.

&gt; bnm


</pre>
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<li><strong><a name="01223" href="msg01223.html">Connectivity Troubleshooting (was Re: [ale] OT Speedfactory Problems	Anyone?)</a></strong>
<ul><li><em>From:</em> jbaldwin at antinode.net (James Baldwin)</li></ul></li>
<li><strong><a name="01230" href="msg01230.html">[ale] OT Speedfactory Problems Anyone?</a></strong>
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