Nevermind. See "apt-file search ipwatchd". On Thu, 27 Oct 2011 20:16:43 +0300, Volkan YAZICI writes: > I have two servers A and B, where both knows the IP address of itself > and the other. Assume A goes down (that is, A is not reachable via > ping), then B temporarily takes the IP address of A via IP aliasing. Now > the problem is, when A wakes up, I want B to get alerted by this event. > Any ideas?