Sure it is. The official documentation has a great section on this, which ends with: "By default, Nagios will notify contacts about both DOWN and UNREACHABLE host states. As an admin/tech, you might not want to get notifications about hosts that are UNREACHABLE. You know your network structure, and if Nagios notifies you that your router/firewall is down, you know that everything behind it is unreachable. If you want to spare yourself from a flood of UNREACHABLE notifications during network outages, you can exclude the unreachable (u) option from the notification_options directive in your <a href="http://nagios.sourceforge.net/docs/3_0/objectdefinitions.html#host">host</a> definitions and/or the host_notification_options directive in your <a href="http://nagios.sourceforge.net/docs/3_0/objectdefinitions.html#contact">contact</a> definitions." <a href="http://nagios.sourceforge.net/docs/3_0/networkreachability.html">http://nagios.sourceforge.net/docs/3_0/networkreachability.html</a> <div class="gmail_quote">On Mon, Sep 28, 2009 at 7:00 PM, John Andrunas <<a href="mailto:john@andrunas.net">john@andrunas.net</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I have a couple of remote sites, and when the link between the main site and remote site goes down a LOT of notifications are generated for hosts in the remote site. I have all the parents set correctly and it is easy to decipher what is going on when you look at the overview, but the mass of email generated is not useful. What config change should I make? It doesn't seem like removing the notification option for unreachable is the correct answer but I can't think of what other things would possibly fix email spam if you will. -- John ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! <a href="http://p.sf.net/sfu/devconf" target="_blank">http://p.sf.net/sfu/devconf</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>