[hobbit] Re: Conn test problems

Josh Luthman josh at imaginenetworksllc.com
Mon Jan 14 18:40:33 CET 2008


Wouldn't the traceroute used by Hobbit be the same command as the shell?

On 1/14/08, Hobbit User in Richmond <hobbit at epperson.homelinux.net> wrote:
>
> Actually, ICMP echo-request and echo-reply packets are almost certainly
> not an issue here, nor is packet-filtering/firewalling.  In current
> implementations, traceroute by default uses UDP packets to abitrary and
> unlikely-to-respond ports, varying the TTL and using the ICMP type 11
> (Time Exceeded) from hops along the way to map the routing path.
>
> The manpage in Fedora 8 says "We start our probes with a ttl of one and
> increase by one until we...got to the "host", or hit a max (which defaults
> to  30  hops)".
>
> So, the behavior you're seeing is as documented.  If a firewall were an
> issue in sending/receiving the packets used by traceroute, you'd see the
> 30-hop behavior whether the host was up or down.
>
> On Mon, January 14, 2008 11:17, Michael A. Price wrote:
> > Josh,
> >
> >
> >
> > Thanks for helping... The source/destination is on a closed network,
> > sorry...and I don't own the router...
> >
> >
> >
> > But, I don't understand, how the traceroute works when the host is up,
> > but when the host is down it times out???
> >
> >
> >
> > If it works when the host is up, then you would think the ACL on the
> > router just before the host would allow my ICMP packets through.
> >
> >
> >
> > What is your thoughts???
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > From: Josh Luthman [mailto:josh at imaginenetworksllc.com]
> > Sent: Thursday, January 10, 2008 11:01 AM
> > To: hobbit at hswn.dk
> > Subject: Re: [hobbit] Re: Conn test problems
> >
> >
> >
> > That third hop is denying ICMP echoes to you.  Is it a router of your
> > own or is it outside your network?  If you'd be willing to share that
> > destination with us at least I would be willing to traceroute it from my
> > location to help see if it is an issue at your end or not.
> >
> > On 1/10/08, Michael A. Price <mprice at sgt-inc.com> wrote:
> >
> > Yes....
> >
> >
> >
> > Its weird,  from the shell#. I can trace route to the host if its up in
> > 3 HOPS. But if the host is offline, it does 2 HOPS and then 28 more
> > blank lines of stars. Not sure why it doesn't just time out after 3
> > HOPS, it takes a couple minutes to time out.
> >
> >
> >
> > That's what my problem is, so I removed the trace option to my hosts.
> > Any help would be great...
> >
> >
> >
> > Thanks, michael
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > From: Josh Luthman [mailto:josh at imaginenetworksllc.com]
> > Sent: Wednesday, January 09, 2008 3:32 PM
> > To: hobbit at hswn.dk
> > Subject: Re: [hobbit] Re: Conn test problems
> >
> >
> >
> > Michael,
> >
> > Were you the one that couldn't traceroute to the host via the shell?
> >
> > Josh
> >
> > On 1/9/08, Michael A. Price < mprice at sgt-inc.com
> > <mailto:mprice at sgt-inc.com> > wrote:
> >
> > My 'ping test completed' goes through the roof if my #trace tag is in
> > the monitoring field and the host is down...
> >
> >
> >
> > It keeps trying to trace route and it times out..
> >
> >
> >
> > Never found a fix..
> >
> >
> >
> > ________________________________
> >
> > From: Josh Luthman [mailto: josh at imaginenetworksllc.com]
> > Sent: Wednesday, January 09, 2008 10:55 AM
> > To: hobbit at hswn.dk
> > Subject: [hobbit] Re: Conn test problems
> >
> >
> >
> > Has anyone else encountered issues like this?  Has anyone else
> > encountered any similar issues with all the conn tests going haywire?
> >
> > I figured I'd also post this information while "bumping" the email:
> >
> > bbgen for Hobbit version 4.2.0
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Statistics:
> >
> >
> >
> >
> >
> >
> >  Hosts               :   164
> >
> >
> >
> >
> >
> >
> >
> >  Status messages     :   531
> >
> >
> >
> >
> >
> >
> >
> >  Purple messages     :     0
> >
> >
> >
> >
> >
> >
> >  Pages               :     1
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > TIME SPENT
> >
> >
> >
> >
> >
> >
> > Event                                            Starttime
> > Duration
> >
> >
> >
> >
> >
> >
> >
> >
> > Startup                                  1199894029.525853
> > -
> >
> >
> >
> >
> >
> >
> >
> > Load links done                          1199894029.526327
> > 0.000474
> >
> >
> >
> >
> >
> >
> >
> > Load bbhosts done                        1199894029.531645
> >           0.005318
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ACK removal done                         1199894029.531742
> > 0.000097
> >
> >
> >
> >
> >
> >
> >
> > Load STATE done                          1199894029.563429
> > 0.031687
> >
> >
> >
> >
> >
> >
> > Color calculation done
> > 1199894029.563629          0.000200
> >
> >
> >
> >
> >
> >
> >
> > Hobbit pagegen start                     1199894029.563659
> > 0.000030
> >
> >
> >
> >
> >
> >
> > Hobbit pagegen done
> > 1199894029.573544          0.009885
> >
> >
> >
> >
> >
> >
> > BB2 generation done
> >
> > 1199894029.576605          0.003061
> >
> >
> >
> >
> >
> >
> > BBNK generation done                     1199894029.577261
> >           0.000656
> >
> >
> >
> >
> >
> >
> > Summary transmission done                1199894029.577265
> > 0.000004
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > WML generation done
> > 1199894029.578793
> >           0.001528
> >
> >
> >
> >
> >
> >
> > Run completed                            1199894029.578798
> > 0.000005
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > TIME TOTAL
> > 0.052945
> >
> >
> >
> > bbtest-net version
> > 4.2.0
> >
> >
> >
> >
> >
> >
> > SSL library : OpenSSL 0.9.8b 04 May 2006
> >
> >
> >
> >
> >
> >
> > LDAP library: OpenLDAP 20327
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Statistics:
> >
> >
> >
> >
> >
> >
> >
> >  Hosts total           :      161
> >
> >
> >
> >
> >
> >
> >
> >  Hosts with no tests   :        1
> >
> >
> >
> >
> >
> >
> >  Total test count      :      181
> >
> >
> >
> >
> >
> >
> >
> >  Status messages       :      182
> >
> >
> >
> >
> >
> >
> >
> >
> >  Alert status msgs     :        0
> >
> >
> >
> >
> >
> >
> >  Transmissions         :        3
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > DNS statistics:
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >  # hostnames resolved  :       16
> >
> >
> >
> >
> >
> >
> >
> >  # succesful           :       16
> >
> >
> >
> >
> >
> >
> >  # failed              :        0
> >
> >
> >
> >
> >
> >
> >
> >  # calls to dnsresolve :       27
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > TCP test statistics:
> >
> >
> >
> >
> >
> >
> >
> >  # TCP tests total     :       13
> >
> >
> >
> >
> >
> >
> >  # HTTP tests          :        5
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >  # Simple TCP tests    :        8
> >
> >
> >
> >
> >
> >
> >
> >  # Connection attempts :       13
> >
> >
> >
> >
> >
> >
> >  # bytes written       :      780
> >
> >
> >
> >
> >
> >
> >
> >  # bytes read          :    22792
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > TIME SPENT
> >
> >
> >
> >
> >
> >
> > Event                                            Starttime
> > Duration
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > bbtest-net startup                       1199893834.785076
> > -
> >
> >
> >
> >
> >
> >
> >
> > Service definitions loaded
> > 1199893834.787463          0.002387
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Tests loaded                             1199893834.793085
> > 0.005622
> >
> >
> >
> >
> >
> >
> >
> > DNS lookups completed                    1199893834.883042
> > 0.089957
> >
> >
> >
> >
> >
> >
> > Test engine setup completed
> > 1199893834.886789          0.003747
> >
> >
> >
> >
> >
> >
> >
> > TCP tests completed                      1199893835.028904
> > 0.142115
> >
> >
> >
> >
> >
> >
> > PING test completed (160 hosts)
> > 1199893870.087696         35.058792
> >
> >
> >
> >
> >
> >
> > PING test results sent
> >
> > 1199893870.090125          0.002429
> >
> >
> >
> >
> >
> >
> > Test result collection completed         1199893870.090173
> >           0.000048
> >
> >
> >
> >
> >
> >
> > LDAP test engine setup completed         1199893870.090175
> > 0.000002
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > LDAP tests executed
> > 1199893870.090177
> >           0.000002
> >
> >
> >
> >
> >
> >
> > LDAP tests result collection completed   1199893870.090179
> > 0.000002
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > NSLOOKUP tests executed                  1199893870.244778
> > 0.154599
> >
> >
> >
> >
> >
> >
> >
> > Test results transmitted
> > 1199893870.246478          0.001700
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > bbtest-net completed                     1199893870.248556
> > 0.002078
> >
> >
> >
> >
> >
> >
> >
> > TIME TOTAL
> > 35.463480
> >
> >
> >
> > On 1/7/08, Josh Luthman <josh at imaginenetworksllc.com> wrote:
> >
> > I've been getting a lot of these recently.  A lot of the time I'll get a
> > good 3/4 of the hosts I'm monitoring like this, other days it is just
> > one or two.  I can't seem to find any pattern to it.  I'm very confident
> > it isn't network related as it happens to the first entry, Hobbit
> > server.  I just can't imagine why it would have issues getting to
> > 127.0.0.1!
> >
> > I was also under the impression that the ping test is done every 60s or
> > 120s so these tests just can't be true positive results.
> >
> > Poking around I also found that the test to my hobbit server (this is
> > 127.0.0.1 mind you) went up in early December.
> >
> > Looking for any input at this point!
> >
> > --
> > Josh Luthman
> > Office: 937-552-2340
> > Direct: 937-552-2343
> > 1100 Wayne St
> > Suite 1337
> > Troy, OH 45373
> >
> > Those who don't understand UNIX are condemned to reinvent it, poorly.
> > --- Henry Spencer
> >
> >
> >
> >
> >
> > --
> > Josh Luthman
> > Office: 937-552-2340
> > Direct: 937-552-2343
> > 1100 Wayne St
> > Suite 1337
> > Troy, OH 45373
> >
> > Those who don't understand UNIX are condemned to reinvent it, poorly.
> > --- Henry Spencer
> >
> >
> >
> >
> > --
> > Josh Luthman
> > Office: 937-552-2340
> > Direct: 937-552-2343
> > 1100 Wayne St
> > Suite 1337
> > Troy, OH 45373
> >
> > Those who don't understand UNIX are condemned to reinvent it, poorly.
> > --- Henry Spencer
> >
> >
> >
> >
> > --
> > Josh Luthman
> > Office: 937-552-2340
> > Direct: 937-552-2343
> > 1100 Wayne St
> > Suite 1337
> > Troy, OH 45373
> >
> > Those who don't understand UNIX are condemned to reinvent it, poorly.
> > --- Henry Spencer
> >
> >
>
>
> To unsubscribe from the hobbit list, send an e-mail to
> hobbit-unsubscribe at hswn.dk
>
>
>


-- 
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer
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