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Client data?

4 messages in this thread

list John Horne · Wed, 07 Mar 2012 20:36:00 +0000 ·
Hello,

Using Xymon 4.3.7 I see that most (possibly all) of the services being
monitored for a host contain a link in the web page saying 'Client data
available'.

By clicking on the link I can see that it shows some info about the
host, but my question is why? What is this link for?

As far as I can tell there is no way to disable the link from appearing.
Is that correct? It may be that we would prefer not having the link
present, so preventing users from seeing info about the host itself.


Thanks,

John.

-- 
John Horne, Plymouth University, UK
Tel: +XX (X)XXXX XXXXXX    Fax: +XX (X)XXXX XXXXXX
list Japheth Cleaver · Wed, 7 Mar 2012 13:43:46 -0800 (PST) ·
quoted from John Horne
On Wed, March 7, 2012 12:36 pm, John Horne wrote:
Hello,

Using Xymon 4.3.7 I see that most (possibly all) of the services being
monitored for a host contain a link in the web page saying 'Client data
available'.

By clicking on the link I can see that it shows some info about the
host, but my question is why? What is this link for?

As far as I can tell there is no way to disable the link from appearing.
Is that correct? It may be that we would prefer not having the link
present, so preventing users from seeing info about the host itself.
The client data is present to allow you to see full "raw" details for a
host which may aid in diagnosis. It really shines when the [hostdata] task
is enabled (by default), in that it saves a copy of the complete client
data report every time a status report changes. Need to see what process
was running when disk use rose above 95%? You can.

I don't think there's a specific way to prevent the client report link
from being visible, short of patching.

There's little visible in the raw client report that's not also percolated
up in the form of cpu/procs/disk/trends or other statuses (eg, in
protecting process lists), which might be why there hasn't been much
demand for blocking or hiding that link -- someone who can see the link
already has lots of info.

HTH,
-jc
list John Horne · Wed, 07 Mar 2012 22:00:41 +0000 ·
quoted from Japheth Cleaver
On Wed, 2012-03-07 at 13:43 -0800, user-87556346d4af@xymon.invalid wrote:
On Wed, March 7, 2012 12:36 pm, John Horne wrote:
Hello,

Using Xymon 4.3.7 I see that most (possibly all) of the services being
monitored for a host contain a link in the web page saying 'Client data
available'.

By clicking on the link I can see that it shows some info about the
host, but my question is why? What is this link for?

As far as I can tell there is no way to disable the link from appearing.
Is that correct? It may be that we would prefer not having the link
present, so preventing users from seeing info about the host itself.
It really shines when the [hostdata] task is enabled (by default),
Okay, not sure what this is but I'll take a look tomorrow (haven't
looked at 'tasks' at all yet).
quoted from Japheth Cleaver
Need to see what process was running when disk use rose above 95%? You
can.
Ah, okay. Yes I can see that would be useful.
quoted from Japheth Cleaver
I don't think there's a specific way to prevent the client report link
from being visible, short of patching.
Yes, I can see that it only requires commenting out one line (in
htmllog.c I think), but obviously would rather not unless required.

I'll take a closer look tomorrow at the info displayed and see if maybe
we're being a bit too paranoid? :-)
quoted from John Horne


Thanks,

John.

-- 
John Horne, Plymouth University, UK
Tel: +XX (X)XXXX XXXXXX    Fax: +XX (X)XXXX XXXXXX
list Larry Barber · Wed, 7 Mar 2012 16:13:06 -0600 ·
Resending to "xymon at xymon.com". That "reply" does not respond to the list
is kind of broken.

Thanks,
Larry Barber

On Wed, Mar 7, 2012 at 4:10 PM, Larry Barber <user-6ef9c2864140@xymon.invalid> wrote:
The "client data" is a copy of the information that the client sends the
Xymon server. Most of it will be displayed in the various client test
display pages for the host, so there is little point in trying to hide it.
Security by obscurity never works. Also, it can be very handy to have this
data available.

Thanks,
Larry Barber
quoted from John Horne


On Wed, Mar 7, 2012 at 2:36 PM, John Horne <user-e95f1ec2f147@xymon.invalid>wrote:
Hello,

Using Xymon 4.3.7 I see that most (possibly all) of the services being
monitored for a host contain a link in the web page saying 'Client data
available'.

By clicking on the link I can see that it shows some info about the
host, but my question is why? What is this link for?

As far as I can tell there is no way to disable the link from appearing.
Is that correct? It may be that we would prefer not having the link
present, so preventing users from seeing info about the host itself.


Thanks,

John.

--
John Horne, Plymouth University, UK
Tel: +XX (X)XXXX XXXXXX    Fax: +XX (X)XXXX XXXXXX