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Re: Interface status detection



"Muli B.Y." <mulix@ibm.net> writes:

> I have written a small utility, ifup, which will tell you if any network
> interface is up or down (connected or disconnected). 

Can you explain what it does? I mean, is it a wrapper around ifconfig(8)
or netstat(8) or something of the kind? Why is it preferable?

> Now,  what I really need is a way to get a notification when an
> interface changes its status. Is there any way to do this under
> linux? 

I suppose there is more than one way to do it under Linux.

> (Of course I can sleep() and continually check the interface's
> status,

Yes, you can. You can also use cron.

> but I dislike this approach- can you hear you cpu roasting? :))

No.

-- 
Oleg Goldshmidt | BLOOMBERG L.P. (BFM) | oleg@bfr.co.il
"... We work by wit, and not by witchcraft;
 And wit depends on dilatory time." - W. Shakespeare.

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