On Apr 8, 2008, at 2:50 AM, Heiko Schlittermann wrote: > Hello, > > (using 3.0.1) > > I've a list of hosts, these hosts are not available for ping, but > normal > service checks (SSH, SMTP, ...) work. Nagios reports theses hosts > beeing > down! Ugly! > > If I remember well, older nagios versions "knew" that's enough to see > one service on a host to know this host has to be up.
To a degree, yes- if you aren't actively checking the host (as would appear to be the case from your next paragraph), then as long as all services on the host are listed as ok, nagios assumes the host is still ok (at least once running, I don't know how it behaves on the initial check). However, should any of the services go into a non-ok state, nagios will immediately check the host (using the host check_command), wherupon, in your case, it would determine the host to be down since it can't ping. The state of the other services does not affect this process, so any other services do not change state. > The host check_command is the normale 'check-host-alive' (which is > pinging), the check_interval is 0 -- why does nagios want to check > that > host? Because at some point one or more of the services went into a non-ok state. > The check_command is inherited from some template, if I try to > override > it with no value, nagios complains: > > Error: Host check command '(null)' specified for host 'diwi/diw' is > not defined anywhere Yep- you can't have no value in the check_command directive. If you just want to assume the host is up all the time, you can use the check_dummy plugin (after defining a check_dummy command in your checkcommands.cfg, naturally). Otherwise you'll need to figure out some check Nagios can perform to determine if the host is running, even if that check is just checking one of the services again or something. ----------------------------------------------- Israel Brewster Computer Support Technician Frontier Flying Service Inc. 5245 Airport Industrial Rd Fairbanks, AK 99709 (907) 450-7250 x293 ----------------------------------------------- > > > > So - please, could anybody point to my stupidity? > > Thanks. > > > Best regards from Dresden > Viele Grüße aus Dresden > Heiko Schlittermann > -- > SCHLITTERMANN.de ---------------------------- internet & unix > support - > Heiko Schlittermann HS12-RIPE > ----------------------------------------- > gnupg encrypted messages are welcome - key ID: 48D0359B > --------------- > gnupg fingerprint: 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 > 359B - > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Register now and save $200. Hurry, offer ends at 11:59 p.m., > Monday, April 7! Use priority code J8TLD2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone_______________________________________________ > Nagios-users mailing list > Nagios-users@lists.sourceforge.net > 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 ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Register now and save $200. Hurry, offer ends at 11:59 p.m., Monday, April 7! Use priority code J8TLD2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
