Re: [Nagios-users] Monitoring Distributed Resource [Resolved]
Thank you!
Your assumption about the layout is correct.
I will try to define a parent/child relationship between core_gw_1, core_gw_2
and each remote gateway connected to it, and then a parent/child relationship
between the remote_gw and remote_host.
I've seen the tab for that in centreon, so I'll try to configure this next week.
I appreciate all your great help whith this!
Mit freundlichen Gr??en / With best regards
Andreas Iwanowski - IT Administrator / Software Developer
www.awato.de | namez...@afim.info
T: +49 (0)2133 2969 28 | F: +49 (0)2133 2969 69
awato Software GmbH | Salm Reifferscheidt Allee 37 | D-41540 Dormagen
avisor-Support | T: +49 (0)621 6094 043 | F: +49 (0)621 6071 447
Gesch?ftsf?hrer: Ursula Iwanowski | HRB: Neuss 7208 | VAT-no.: DE 122796158
-Original Message-
From: Chris Beattie [mailto:cbeat...@geninfo.com]
Sent: Thursday, August 09, 2012 5:01 PM
To: nagios-users@lists.sourceforge.net
Subject: Re: [Nagios-users] Monitoring Distributed Resource
On 8/8/2012 5:57 PM, Andreas M. Iwanowski wrote:
So as I understand, if I define a parent-child relationship between
the VPN services (or core gateways) on the parent side and the remote
gateway on the other side, the remote gateway will be checked (and we
notified) as long as one core gateway is online?
This is how I picture your setup:
core_gw_1
Nagios- -remote_gw-remote_host
core_gw_2
If you put parents core_gw_1,core_gw_2 in remote_gw's host
definition and parents remote_gw in the remote_host's definition, then
as long as Nagios thinks either core_gw is up, it should continue checking
remote_gw and remote_host behind it.
And since the remote hosts all depend on the remote gateway, they
should inherit that behavior. Correct?
When you say depend, do you mean a host dependency as in you've got a define
hostdependency {... somewhere? That's more advanced than what I'm talking
about, and those dependencies are NOT inherited. You'd have to define one for
every host.
Defining parent/child relationships is a simple way to describe to Nagios the
network's layout, specifically for determining if a host can be reached. If
remote_host_1's parent is remote_gw and you copy
remote_host_1 when you add remote_host_2, then remote_host_2 will also have
remote_gw as a parent.
I don't think the check_cluster would work since the host services are
checked via nrpe running custom php monitoring scripts on the
machines, but I'll check it out tomorrow at the office anyways.
Check_cluster is a meta-check. It doesn't perform the component service or
host checks itself. Instead, it examines the results of the checks that Nagios
is already performing. Now that I think about it some more, it's probably
overkill for this case.
--
-Chris
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If you have received this message in error, please notify us immediately by
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Thank you.
--
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Re: [Nagios-users] Monitoring Distributed Resource
On 8/8/2012 5:57 PM, Andreas M. Iwanowski wrote:
So as I understand, if I define a parent-child relationship between
the VPN services (or core gateways) on the parent side and the remote
gateway on the other side, the remote gateway will be checked (and we
notified) as long as one core gateway is online?
This is how I picture your setup:
core_gw_1
Nagios- -remote_gw-remote_host
core_gw_2
If you put parents core_gw_1,core_gw_2 in remote_gw's host
definition and parents remote_gw in the remote_host's definition, then
as long as Nagios thinks either core_gw is up, it should continue
checking remote_gw and remote_host behind it.
And since the remote hosts all depend on the remote gateway, they should
inherit that behavior. Correct?
When you say depend, do you mean a host dependency as in you've got a
define hostdependency {... somewhere? That's more advanced than what
I'm talking about, and those dependencies are NOT inherited. You'd have
to define one for every host.
Defining parent/child relationships is a simple way to describe to
Nagios the network's layout, specifically for determining if a host can
be reached. If remote_host_1's parent is remote_gw and you copy
remote_host_1 when you add remote_host_2, then remote_host_2 will also
have remote_gw as a parent.
I don't think the check_cluster would work since the host services are
checked via nrpe running custom php monitoring scripts on the machines,
but I'll check it out tomorrow at the office anyways.
Check_cluster is a meta-check. It doesn't perform the component service
or host checks itself. Instead, it examines the results of the checks
that Nagios is already performing. Now that I think about it some more,
it's probably overkill for this case.
--
-Chris
Nothing in this message is intended to make or accept an offer or to form a
contract, except that an attachment that is an image of a contract bearing the
signature of an officer of our company may be or become a contract. This
message (including any attachments) is intended only for the use of the
individual or entity to whom it is addressed. It may contain information that
is non-public, proprietary, privileged, confidential, and exempt from
disclosure under applicable law or may constitute as attorney work product. If
you are not the intended recipient, we hereby notify you that any use,
dissemination, distribution, or copying of this message is strictly prohibited.
If you have received this message in error, please notify us immediately by
telephone and delete this message immediately.
Thank you.
--
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
___
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Re: [Nagios-users] Monitoring Distributed Resource
On 8/7/2012 8:33 AM, Andreas M. Iwanowski wrote: I.e. if the primary gateway goes down and the standby takes over, I would still like to be notified about host troubles behind the VPN. Only if both were to be down nagios should stop sending messages. Would setting parent/child relationships, and maybe using the check_cluster plugin help you? I have two network core switches. Every physical host on the network has both of those two core switches defined as a parent in Nagios. Nagios will continue to check everything as long as at least one of those two switches is up. I did something similar with check_cluster. To monitor a VMware ESX cluster comprising three ESX hosts, I defined a Nagios host for each ESX host. There is another Nagios host to represent the cluster whose host check is a check_cluster command. Every guest has the cluster defined as its parent. If one ESX host goes down, the cluster goes into a warning state. If two or more ESX hosts go down, the cluster enters a critical state. The guests may all have migrated onto the still-running ESX host and might still be up, but the monitoring of individual guests can take a back seat at that point. -- -Chris Nothing in this message is intended to make or accept an offer or to form a contract, except that an attachment that is an image of a contract bearing the signature of an officer of our company may be or become a contract. This message (including any attachments) is intended only for the use of the individual or entity to whom it is addressed. It may contain information that is non-public, proprietary, privileged, confidential, and exempt from disclosure under applicable law or may constitute as attorney work product. If you are not the intended recipient, we hereby notify you that any use, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this message in error, please notify us immediately by telephone and delete this message immediately. Thank you. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Monitoring Distributed Resource
Thank you Chris! This sounds great So as I understand, if I define a parent-child relationship between the VPN services (or core gateways) on the parent side and the remote gateway on the other side, the remote gateway will be checked (and we notified) as long as one core gateway is online? And since the remote hosts all depend on the remote gateway, they should inherit that behavior. Correct? I don't think the check_cluster would work since the host services are checked via nrpe running custom php monitoring scripts on the machines, but I'll check it out tomorrow at the office anyways. -Andy Mit freundlichen Gr??en / With best regards Andreas Iwanowski - IT Administrator / Software Developer www.awato.de | namez...@afim.info T: +49 (0)2133 2969 28 | F: +49 (0)2133 2969 69 awato Software GmbH | Salm Reifferscheidt Allee 37 | D-41540 Dormagen avisor-Support | T: +49 (0)621 6094 043 | F: +49 (0)621 6071 447 Gesch?ftsf?hrer: Ursula Iwanowski | HRB: Neuss 7208 | VAT-no.: DE 122796158 -Original Message- From: Chris Beattie [mailto:cbeat...@geninfo.com] Sent: Wednesday, August 08, 2012 3:12 PM To: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] Monitoring Distributed Resource On 8/7/2012 8:33 AM, Andreas M. Iwanowski wrote: I.e. if the primary gateway goes down and the standby takes over, I would still like to be notified about host troubles behind the VPN. Only if both were to be down nagios should stop sending messages. Would setting parent/child relationships, and maybe using the check_cluster plugin help you? I have two network core switches. Every physical host on the network has both of those two core switches defined as a parent in Nagios. Nagios will continue to check everything as long as at least one of those two switches is up. I did something similar with check_cluster. To monitor a VMware ESX cluster comprising three ESX hosts, I defined a Nagios host for each ESX host. There is another Nagios host to represent the cluster whose host check is a check_cluster command. Every guest has the cluster defined as its parent. If one ESX host goes down, the cluster goes into a warning state. If two or more ESX hosts go down, the cluster enters a critical state. The guests may all have migrated onto the still-running ESX host and might still be up, but the monitoring of individual guests can take a back seat at that point. -- -Chris Nothing in this message is intended to make or accept an offer or to form a contract, except that an attachment that is an image of a contract bearing the signature of an officer of our company may be or become a contract. This message (including any attachments) is intended only for the use of the individual or entity to whom it is addressed. It may contain information that is non-public, proprietary, privileged, confidential, and exempt from disclosure under applicable law or may constitute as attorney work product. If you are not the intended recipient, we hereby notify you that any use, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this message in error, please notify us immediately by telephone and delete this message immediately. Thank you. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
[Nagios-users] Monitoring Distributed Resource
Dear Nagios Gurus, We've been using nagios for the past two years (actually centreon/nagios), and are very happy with it. However, I couldn't find a way to monitor a distributed resource. Let me explain what I mean. For example, I may have redundant VPN gateways, so if one goes offline it is not catastrophic. I may also have monitored devices behind the VPN, so I set up host dependencies. I would like to have host dependency in an either or configuration. I.e. if the primary gateway goes down and the standby takes over, I would still like to be notified about host troubles behind the VPN. Only if both were to be down nagios should stop sending messages. Does that make sense? I'm sure there is a way to implement this in Nagios, but I haven't found out how quite yet... Has anyone implemented something in this way? Mit freundlichen Gr??en / With best regards Andreas Iwanowski - IT Administrator / Software Developer www.awato.dehttp://www.awato.de | namez...@afim.infomailto:namez...@afim.info T: +49 (0)2133 2969 28 | F: +49 (0)2133 2969 69 awato Software GmbH | Salm Reifferscheidt Allee 37 | D-41540 Dormagen avisor-Support | T: +49 (0)621 6094 043 | F: +49 (0)621 6071 447 [awato Software GmbH] [cid:qrCode-63e3864e-f744-4ad2-aae3-38aaf37b4110a750d4] Gesch?ftsf?hrer: Ursula Iwanowski | HRB: Neuss 7208 | VAT-no.: DE 122796158 inline: qrCode-63e3864e-f744-4ad2-aae3-38aaf37b4110a750d4-- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
