bind nagios to a fix ip

Darren Dunham ddunham at taos.com
Thu Jul 28 03:24:46 CEST 2005


> Short answer; No.
> 
> Long answer; It's possible but extremely cumbersome and the necessary 
> changes to the plugins requires a substantial amount of C-coding 
> knowledge as well as a complete insight into how IP networks work.
> 
> Since the plugins initiate the connection you'd have to make all the 
> plugins use raw sockets (all of them need to be setsuid for this to 
> work). That way they can set the outgoing IP by themselves. This is 
> almost always a very bad idea, since you might end up sending packets 
> that doesn't have a return route to send the responses through unless 
> each network has a default route that is interconnected with all the 
> other gateways (and all the networks know of each other). If you don't 
> know what I'm talking about, see the short answer above.

It wouldn't be much easier since you're still talking about modifying
all the individual plug-ins, but it shouldn't require raw sockets.  I
would hope that simply having them bind to the requested address rather
than to INADDR_ANY would do the trick.

-- 
Darren Dunham                                           ddunham at taos.com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >


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