DNX is also a good solution for this although it's been years since I last looked at it and I'm not sure it runs with current Nagios.
On Wed, Oct 9, 2013 at 12:14 PM, Jacob Albretsen <[email protected]> wrote: > On Wednesday, October 09, 2013 02:07:40 PM Dan Egli wrote: > > On October 7, 2013, at 8:37pm, Brian Christiansen wrote: > > > NRPE: Active Check (Nagios initiating the check > > > > > > NSCA: passive check (the server initiating the check) > > > > Now I'm lost. I thought Nagios ran on the server? If it does, how does > NPRE > > have Nagios initiate the check and NSCA have the server initiate the > check. > > That would be the same thing, wouldn't it? > > NRPE runs on clients you want to monitor and listens on port 5666 by > default. > You can also limit it to the IP if you have multiple IPs on the box. > Nagios > plugins to check items is also installed on the client. The Nagios server > can > then run check_nrpe with a command to check a particular item on the NRPE > client, which it then contacts and sends the command. The client has an > nrpe > file which defines what those commands are. There is some flexibility > here which > can have an impact on security if you enable it (see the docs). So NRPE > on a > client doesn't do checks by itself, it just does the checks it is told to > do > by the Nagios server. Each command is one connection from the Nagios > server > to the NRPE client. So if you run 20 checks, Nagios server connects to > NRPE > client 20 times. > > NSCA I have never used, but IIRC, basically the clients runs the checks on > its > own schedule you define and reports the results back to the Nagios server. > The > Nagios Server is set up to listen for these "reports" from various NSCA > clients. The upside of this is NSCA can do 20 checks, and then report > back to > the Nagios server the results in one connection. > > > > /* > PLUG: http://plug.org, #utah on irc.freenode.net > Unsubscribe: http://plug.org/mailman/options/plug > Don't fear the penguin. > */ > /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
