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linux fping

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sudo apt-get install fping
-a: ±íʾֻÔÚÊä³ö±¨¸æÀïÁгöµ±Ç°ÕýÔÚÔËÐеÄϵͳ¡£
-d:½âÎöÖ÷»úÃû¡£
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-g: ·¶Î§¡£
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$cat  a
192.168.1.1
192.168.1.2
192.168.1.3
......
192.168.1.39
$fping -f -a a
192.168.1.1 is alive
192.168.1.2 is unreachable
192.168.1.3 is unreachable
192.168.1.4 is unreachable
192.168.1.5 is unreachable
192.168.1.6 is unreachable
$fping -g  192.168.1.1  192.168.1.255


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[root@localhost ~]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Esc ......

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