【linux】【网络】【ping 命令】【检测与另一个主机之间的网络连接】 |
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目录 Linux ping 命令 语法 实例 1 检测是否与主机连通 2 指定接收包的次数 Linux ping 命令Linux ping 命令用于检测与另一个主机之间的网络连接。 执行 ping 指令会使用 ICMP(Internet Control Message Protocol) 传输协议,发出要求回应的信息。若远端主机的网络功能没有问题,就会回应该信息,因而得知该主机运作正常。 语法 ping [-dfnqrRv][-c][-i][-I][-l][-p][-s][-t][主机名称或IP地址]参数说明: -d 使用Socket的SO_DEBUG功能。-c 设置完成要求回应的次数。-f 极限检测。-i 指定收发信息的间隔时间。-I 使用指定的网络接口送出数据包。-l 设置在送出要求信息之前,先行发出的数据包。-n 只输出数值。-p 设置填满数据包的范本样式。-q 不显示指令执行过程,开头和结尾的相关信息除外。-r 忽略普通的Routing Table,直接将数据包送到远端主机上。-R 记录路由过程。-s 设置数据包的大小。-t 设置存活数值TTL的大小。-v 详细显示指令的执行过程。-w 在 deadline 毫秒后退出。-W 在等待 timeout 毫秒后开始执行。 实例 1 检测是否与主机连通ping www.baidu.com //ping主机 AAA@master:~$ ping www.baidu.com PING www.baidu.com(2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237)) 56 data bytes 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=1 ttl=48 time=39.4 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=2 ttl=48 time=39.4 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=3 ttl=48 time=39.5 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=4 ttl=48 time=39.4 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=5 ttl=48 time=39.5 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=6 ttl=48 time=39.3 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=7 ttl=48 time=39.3 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=8 ttl=48 time=39.3 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=9 ttl=48 time=39.4 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=10 ttl=48 time=39.4 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=11 ttl=48 time=39.2 ms ^C --- www.baidu.com ping statistics --- 11 packets transmitted, 11 received, 0% packet loss, time 10016ms rtt min/avg/max/mdev = 39.298/39.429/39.532/0.073 ms ^C //需要手动终止Ctrl+C 2 指定接收包的次数 AAA@master:~$ ping -c 2 www.baidu.com PING www.baidu.com(2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237)) 56 data bytes 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=1 ttl=48 time=39.5 ms 64 bytes from 2408:871a:2100:2:0:ff:b09f:237 (2408:871a:2100:2:0:ff:b09f:237): icmp_seq=2 ttl=48 time=39.2 ms --- www.baidu.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 39.262/39.384/39.506/0.122 ms //收到两次包后,自动退出 |
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