I have a simple perl script that every few hours pings the handful of machines on my LAN. Lately I’ve sometimes been getting
ping of 192.168.0.1 succeeded ping of 192.168.0.7 succeeded ping of 192.168.0.5 FAILED
ping of 192.168.0.6 succeeded ping of 192.168.0.9 succeeded
This machine in question has been running CentOS faithfully for about six years and no recent changes to it have been made. When I try and ping the machine manually it works. /var/og/messages does not seem irregular. Does anyone know know what might be the problem or what else I might check?