nagios check-host-alive always down {Disarmed} {Fraud?} {Disarmed} {Fraud?}

[Marc Powell]

And that's even more unexpected. If you ran the test as the nagios user
then you did exactly what nagios is doing. Do you have multiple copies
of nagios running? Stop nagios, use ps to verify that all are dead and
restart nagios.

--
Marc

> -----Original Message-----
> From: dlcarvalho at gmail.com [mailto:dlcarvalho at gmail.com] On Behalf Of
> Daniel Carvalho
> Sent: Thursday, March 02, 2006 10:32 AM
> To: Marc Powell
> Cc: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] nagios check-host-alive always down
{Disarmed}
> {Fraud?} {Disarmed} {Fraud?}
> 
> Marc,
> 
> The nagios users check_ping result is: PING OK - Packet loss = 0%, RTA
=
> 0.07 ms
> 
> The SELinux is not enabled because I installed ganglia monitor too.
And
> there is no message like 'avc denied' in /var/log/message and the
output
> of command audit2allow is blank.
> 
> Thanks
> 
> Daniel
> 
> 
> On 3/2/06, Marc Powell <marc at ena.com> wrote:
> 
> 	Hmm. That's an unexpected result. The next step would be to go
one
> level
> 	higher and execute nagios' check_ping as the nagios user --
> 
> 	/path/to/nagios/libexec/check_ping -H 192.168.0.1 -w 3000.0,80%
-c
> 	5000.0,100% -p 1
> 
> 	Do you have SELinux enabled? Have you modified the default
policies?
> I'd
> 	look for 'avc denied' messages related to nagios in
> /var/log/messages
> 	just to be safe or, as root, run 'audit2allow -l -i
> /var/log/messages
> 	-v'.
> 
> 	--
> 	Marc Powell
> 	> -----Original Message-----
> 	> From: nagios-users-admin at lists.sourceforge.net [mailto:
nagios-
> users- <mailto:nagios-users->
> 	> admin at lists.sourceforge.net] On Behalf Of Daniel Carvalho
> 	> Sent: Thursday, March 02, 2006 10:00 AM
> 	> To: nagios-users at lists.sourceforge.net <mailto:nagios-
> users at lists.sourceforge.net>
> 	> Subject: Re: [Nagios-users] nagios check-host-alive always
down
> 	{Disarmed}
> 	> {Fraud?}
> 	>
> 	> Hi Marc,
> 	>
> 	> The command /bin/ping -n -U -w 10 -c 1 192.168.0.1 is
executable
> for
> 	user
> 	> nagios. I logged as nagios user and exec the command above and
> 	everythings
> 	> is OK.
> 	>
> 	> The nagios machine is running CentOS 4.0. I installed nagios
via
> yum.
> 	>
> 	> Thanks
> 	>
> 	> Daniel
> 	>
> 	>
> 	> On 3/2/06, Marc Powell < marc at ena.com <mailto:marc at ena.com > >
> wrote:
> 	>
> 	>
> 	>
> 	>       > -----Original Message-----
> 	>       > From: nagios-users-admin at lists.sourceforge.net
<mailto:
> nagios-
> 	> users-admin at lists.sourceforge.net>  [mailto:nagios-users-
> 	>       > admin at lists.sourceforge.net
> <mailto:admin at lists.sourceforge.net> ] On Behalf Of Daniel Carvalho
> 	>       > Sent: Thursday, March 02, 2006 6:11 AM
> 	>       > To: nagios-users at lists.sourceforge.net
> 	>       > Subject: Re: [Nagios-users] nagios check-host-alive
always
> 	down
> 	>       {Disarmed}
> 	>       > {Fraud?}
> 	>       >
> 	>       > Hello Marc, thanks for your answer.
> 	>       >
> 	>       > I'm sorry to reply to you too late. Here in my country
we
> were
> 	on
> 	>       holiday.
> 	>       >
> 	>       > The notification information is sent to an e-mail
address
> that
> 	I
> 	>       > especified on contacts.cfg. The web interface is not
> installed
> 	> yet.
> 	>       >
> 	>       > Find attached some cfg files and the notification
alert.
> 	>       >
> 	>       > Thanks and best regards
> 	>       >
> 	>       > ***** Nagios  *****
> 	>       >
> 	>       > Notification Type: PROBLEM
> 	>       > Host: bud01
> 	>       > State: DOWN
> 	>       > Address: 192.168.0.1 <http://192.168.0.1>
> 	>       > Info: /bin/ping -n -U -w 10 -c 1 192.168.0.1
> 	>
> 	>       It would appear that /bin/ping is not executable by the
> nagios
> 	user.
> 	> Try
> 	>       running the command in the Info as the nagios user. In
some
> 	>       distributions, ping is only executable by root. You can
> modify
> 	that
> 	> by
> 	>       giving /bin/ping suid permissions if it doesn't have
them
> 	already --
> 	>
> 	>       # ls -al /bin/ping
> 	>       -rwxr-xr-x    1 root     root        27860 Sep 29 13:28
> 	/bin/ping
> 	>
> 	>       # chmod u+s /bin/ping
> 	>
> 	>       # ls -al /bin/ping
> 	>       -rwsr-xr-x    1 root     root        27860 Sep 29 13:28
> 	/bin/ping
> 	>
> 	>       --
> 	>       Marc
> 	>
> 	>
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