Nagios help : to display when was my server lastrebooted.

[Anthony Montibello]

On Windows,
Frequently many admins leave automatic updates on to make there life easier,
but as a side effect the server reboots itself usually midweek.  To have
more controle over the reboot, wither manually run updates or configure a
SUS server.
Updates installed are published in the System Log as well as the reboot
itself.

If you really want the last boot time instead of the uptime, add a wrapper
shell script that calculates the reboot date by subtracting the uptime from
the current time.

tony (Author of NC_Net  -Windows plugin)


On Thu, Apr 10, 2008 at 8:50 AM, Paul Weaver <paul.weaver at bbc.co.uk> wrote:

> Uptime is a funny thing, it can go to zero for a number of reasons,
> usually because a 32 bit counter has rolled over (after 136 years, 68
> years, 500 days, 250 days, 49.7 days (win98 just stalled at this point),
> or 25 days.
>
> You can sometimes monitor the SNMP OID "htSystemUptime", which appears
> on my linux, solaris and windows 2000 boxes. When this value decreases
> to nearly 0, you've had a reboot, or the counter has rotated.
>
> This value is probably the same value reported by "uptime" on a linux or
> windows box. If you want to know when your system is available, you
> could set a "check_ping" *service* on thie host, in nagios, running
> every 30 seconds with retrys every 5 seconds. If the service goes away,
> then there's a good chance it's rebooted itself.
>
> If you suspect a reboot, look through the logs. In linux, run "last",
> you should see a "reboot" user if the system has rebooted. In windows
> check the Security or Applications logs from the suspected reboot time.
>
> Perhaps you had a power failure which caused your box to reboot?
>
> --
> "Power corrupts. Power failure corrupts absolutely"
>  -----Original Message-----
> From: nagios-users-bounces at lists.sourceforge.net
> [mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of
> Pallav.S.Gupta at relianceada.com
> Sent: 10 April 2008 12:19
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] Nagios help : to display when was my server
> lastrebooted.
> Importance: High
>
>
>
> Hi All
>
> I want my nagios to display when was my windows/unix based system was
> last rebooted , Is it possible to do so......since my Uptime is showing
> that System Uptime 1day 1 hr but i haven't rebooted it .
>
>
>
>
>
>
> The information contained in this e-mail message is intended only for
> the use of the individual or entity to which it is addressed. If you are
> not the intended recipient, you should return it to the sender
> immediately. Please note that while we scan all e-mails for viruses we
> cannot guarantee that any e-mail is virus-free and accept no liability
> for any damage caused by any virus transmitted by this email.
>
> http://www.bbc.co.uk/
> This e-mail (and any attachments) is confidential and may contain personal
> views which are not the views of the BBC unless specifically stated.
> If you have received it in error, please delete it from your system.
> Do not use, copy or disclose the information in any way nor act in
> reliance on it and notify the sender immediately.
> Please note that the BBC monitors e-mails sent or received.
> Further communication will signify your consent to this.
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
> Don't miss this year's exciting event. There's still time to save $100.
> Use priority code J8TL2D2.
>
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> Nagios-users mailing list
> Nagios-users at 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.monitoring-lists.org/archive/users/attachments/20080410/8d030cf9/attachment.html>
-------------- next part --------------
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
Don't miss this year's exciting event. There's still time to save $100. 
Use priority code J8TL2D2. 
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
-------------- next part --------------
_______________________________________________
Nagios-users mailing list
Nagios-users at 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