[Xymon] Client reports getting muddled up

Ralph M ralphmitchell at gmail.com
Tue Aug 18 17:09:41 CEST 2020 

I think I saw something in one of the patches to fix the client report
munging.  I'm currently in the Dark Ages, with 4.3.12, on hardware that
should have been life-cycled about 10 years ago...  I'm supposed to be
getting new hardware sometime soon.  When I get that, I'll pick up the
latest release.

One problem I have with upgrading is making sure I carry over a few patches
I've made, some of which have already been rolled into mainstream Xymon.  I
may just let the other changes go and run with vanilla 4.3.31.

Ralph Mitchell

On Tue, Aug 18, 2020 at 10:40 AM SebA <spah at syntec.co.uk> wrote:

> That's interesting Ralph.  We sometimes get the same issue with client's
> status reports getting assigned to the wrong host in the Xymon server too
> (and this is just using the normal xymond receiver).  I thought it might be
> related to one or two very big message senders though.  It's difficult to
> track down and can happen briefly, trigger an alert and vanish into the
> mist within a minute when the next report comes in (though some evidence is
> left behind in the history).  But perhaps you are getting big message
> senders are a reboot as it's sending quite a lot of data in the msg column?
>
> Kind regards,
>
> SebA
>
>
>
> On Sat, 15 Aug 2020 at 05:21, Ralph M <ralphmitchell at gmail.com> wrote:
>
>> I think direct SSL wrapping is what I need, thanks.
>>
>> Would it be unreasonable to suggest that the SSL setup, decryption, etc
>> be offloaded to a standalone program that then delivers the message to the
>> core daemon in the same manner as cgimsg?  I'd like to get Apache out of
>> the loop, and just have an SSL-enabled message receiver funneling status
>> messages to the core daemon.
>>
>> The problem I've been living with is, I have a bunch of near-identical
>> clients that all reboot at 1:30am to deal with a memory-leaking Java
>> program.  This means that their Xymon clients all start up at pretty much
>> the same time and deliver messages fairly close together.  From time to
>> time a message storm prevents some clients getting through, and sometimes
>> it seems like status messages are being merged.  At least, I get clients
>> reporting filesystems they don't have, and graphs that shows max values
>> equal to the lifetime of the Universe measured in femtoseconds...
>>
>> Ralph Mitchell
>>
>>
>> On Fri, Aug 14, 2020 at 10:56 PM Japheth Cleaver <cleaver at terabithia.org>
>> wrote:
>>
>>> Hi Ralph,
>>>
>>> For direct SSL wrapping of client submission to xymond, yes. For
>>> authentication of source messages via proxy or intermediary, no.
>>>
>>> For high-volume situations, or where a reply is not needed, cgimsg will
>>> still be a useful mechanism. SSL setup, teardown, and decryption in the
>>> core daemon still has an impact, so offloading that to a receiver for
>>> termination would be recommended depending on your scale.
>>>
>>> Regards,
>>> -jc
>>>
>>> On 8/14/2020 7:30 PM, Ralph M wrote:
>>>
>>> Is the 4.4 release going to have encrypted communications?  I'm not
>>> supposed to send plain text over the network, so I've been faking it with
>>> curl posting to xymoncgimsg on port 443.  It would be really nice to get
>>> port 1984 opened and do it properly.
>>>
>>> Thanks,
>>>
>>> Ralph Mitchell
>>>
>>>
>>> On Fri, Jul 31, 2020 at 11:33 AM James Louis <jglouisjr at gmail.com>
>>> wrote:
>>>
>>>> Thanks for the update Japheth!
>>>>
>>>> On Fri, Jul 31, 2020 at 9:27 AM Japheth Cleaver <cleaver at terabithia.org>
>>>> wrote:
>>>>
>>>>> Hi Jim,
>>>>>
>>>>> I'm looking at the XSS report and sorting through a variety of the
>>>>> patches since this release now.
>>>>> There will be a 4.3.31 release with this as well as other updates, as
>>>>> well as a 4.4 pre-release. Due to there being a longish gap, a maintenance
>>>>> release is appropriate.
>>>>>
>>>>> -jc
>>>>>
>>>>>
>>>>> On 7/31/2020 7:15 AM, James Louis wrote:
>>>>>
>>>>> Japheth,
>>>>>
>>>>> Will 4.3.31 be out soon or will it jump to 4.4?
>>>>>
>>>>> Thanks,
>>>>> Jim
>>>>>
>>>>> On Thu, Sep 5, 2019 at 5:29 PM Japheth Cleaver <cleaver at terabithia.org>
>>>>> wrote:
>>>>>
>>>>>> Xymon 4.3.30 has been released and is now available for download.
>>>>>>
>>>>>> 4.3.30 is mostly a bug-fix release, quashing issues stemming from the
>>>>>> security fixes in 4.3.29, including improperly-tight restrictions on
>>>>>> allowed characters in hostname for browsing along with several other
>>>>>> parsing errors. Thanks in particular to Tom Schmidt for his assistance
>>>>>> in tracking these down.
>>>>>>
>>>>>> Xymon should also now be more easily buildable on older GCC versions
>>>>>> without the diagnostics pragma available.
>>>>>>
>>>>>> Xymon 4.3.30 is available from the Xymon SourceForge page at
>>>>>> https://sourceforge.net/projects/xymon/
>>>>>>
>>>>>> As always, thank you to all who have contributed code, ideas, and
>>>>>> features
>>>>>> to the project!
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>> Japheth "J.C." Cleaver
>>>>>>
>>>>>> _______________________________________________
>>>>>> Xymon mailing list
>>>>>> Xymon at xymon.com
>>>>>> http://lists.xymon.com/mailman/listinfo/xymon
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> *Jim Louis           \\\\||////           \ ~ ~  /           | @ @ | *
>>>>>
>>>>>
>>>>> *--oOo---(_)---oOo-- *
>>>>>
>>>>> “It does me no injury for my neighbor to say there are twenty gods, or
>>>>> no God. It neither picks my pocket nor breaks my leg.”
>>>>>
>>>>> ~ Thomas Jefferson
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *Jim Louis           \\\\||////           \ ~ ~  /           | @ @ | *
>>>>
>>>>
>>>> *--oOo---(_)---oOo-- *
>>>>
>>>> “It does me no injury for my neighbor to say there are twenty gods, or
>>>> no God. It neither picks my pocket nor breaks my leg.”
>>>>
>>>> ~ Thomas Jefferson
>>>> _______________________________________________
>>>> Xymon mailing list
>>>> Xymon at xymon.com
>>>> http://lists.xymon.com/mailman/listinfo/xymon
>>>>
>>>
>>> _______________________________________________
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>> Xymon at xymon.com
>> http://lists.xymon.com/mailman/listinfo/xymon
>>
>
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