Hello to all! I'm planning to change a little the structure of our monitoring system. The central core has a private IP and it makes NAT to check all hosts/services. This creates a LOT of NATs on the gateway router. This is the first reason I want to introduce a distributed monitoring system (on public net) with NSCA (server/client) as descrived in the documentation. My doubt is: In case the of the nagios Distributed Monitoring server (probe) goes DOWN, I don't receive of course status of their monitoired hosts. BUT If I enable active checks as well, the central core server would try active checks anyway. From here a question concern active/passive checks:
I have (i.e.) a host with some services monitored from central core every 20 minutes (active/passive checks enabled) The same host is monitored from the Distributed monitoring server every 10 minutes. The Distributed monitoring server sends the status to che central core (send_nsca) and an EXTERNAL COMMAND/PASSIVE CHECK update the status. Every time the Distributed monitoring server sends the status of a host to the core server, does the core server reset the timer when it makes an active check or does it make an active check anyway? With status from distributed server every 10 minutes, if the active check time would be resetted, it wouldn't do any active checks and this would prevent useless active checks. The same time in case of failover of the distributed monitoring server, also in case of emergency, the core would then check every 20 minutes the hosts directly. Is this scenario true or would the central core do active checks regardless incoming passive checks? Any other help or suggestion would be appreciated. Thank's a lot for your help. Simon -- Simone Felici E-Mail: [email protected] Divisione Tecnica Tel: 0461 030 111 Alpikom S.p.A. Fax: 0461 030 112 v.Fersina, 23 - 38123 Trento URL: http://www.alpikom.it ------------------------------------------------------------------------------ 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! http://p.sf.net/sfu/devconf _______________________________________________ Nagios-users mailing list [email protected] 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
