nagios check-host-alive always down

Daniel Carvalho daniel at dep.fem.unicamp.br
Thu Mar 2 16:59:45 CET 2006


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> wrote:
>
>
>
> > -----Original Message-----
> > From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
> > 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
> > 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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