如何获得本地网络中开机的机器数量

Subject: 如何获得本地网络中开机的机器数量 Author: tooo Posted: 2004-02-11 10:03 Length: 389 byte(s)
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小网络，ADSL拨号上网，我用一台Linux拨号，iptables作NAT，大家一起上网。我想得到正在开机的客户机这个数据，在确定本地网络中其它机器都关了，我的Linux也关了吧。现在我用findsmb \| wc -l来得到一个，减掉3（有三行标题），倒也行，但是客户机现在全是windows OS，不知道如果有其它OS会怎么样。我想可能会出错，而且我认为这个方法太笨拙，所以请教各位能否有一个更准确，更漂亮的方法。谢谢！
---- i have a DREAM, Too
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: xyb Posted: 2004-02-11 17:34 Length: 40 byte(s)
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选择合适的几个端口，用 nc 扫描整个子网。
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: dl_dht Posted: 2004-02-11 18:15 Length: 113 byte(s)
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nmap 192.168.10.0/24 -p 0 2>/dev/null \| grep "hosts up" \| sed -e 's/.(//' -e 's/ hosts.//'
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: tooo Posted: 2004-02-11 19:10 Length: 20 byte(s)
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谢谢！你的方法真好。
---- i have a DREAM, Too
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: WC_CLF Posted: 2004-02-11 19:22 Length: 28 byte(s)
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ping -b 到广播地址好像也行。
---- __0oooo__
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: tooo Posted: 2004-02-11 19:33 Length: 90 byte(s)
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谢谢！以前没用过nc，谢谢你让我认识了它，一时还没弄清楚，但找到本站是一篇指南，再好好看看。
---- i have a DREAM, Too
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: tooo Posted: 2004-02-11 19:53 Length: 46 byte(s)
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我试了一下，好像搞不定，能再具体一点吗？谢谢！
---- i have a DREAM, Too
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: troublemaker Posted: 2004-02-17 17:43 Length: 32 byte(s)
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window好像不做广播ICMP的回应吧？
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: dl_dht Posted: 2004-02-23 13:43 Length: 117 byte(s)
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fping -c 1 -g 192.168.10.1 192.168.10.254 2>/dev/null \| wc -l 这个速度要快一些, 也准确一些.
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: skyone Posted: 2004-02-23 20:46 Length: 908 byte(s)
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好象有点问题 [root@www root]# ping -c 1 192.168.21.1 PING 192.168.21.1 (192.168.21.1) 56(84) bytes of data. 64 bytes from 192.168.21.1: icmp_seq=1 ttl=64 time=0.056 ms --- 192.168.21.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.056/0.056/0.056/0.000 ms [root@www root]# ping -c 1 192.168.21.10 PING 192.168.21.10 (192.168.21.10) 56(84) bytes of data. 64 bytes from 192.168.21.10: icmp_seq=1 ttl=128 time=0.244 ms --- 192.168.21.10 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.244/0.244/0.244/0.000 ms [root@www root]# fping -c 1 -g 192.168.21.1 192.168.21.254 2>/dev/null \| wc -l 0 [root@www root]#
---- 轻舞飞扬？：）！那是我的手指！
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: dl_dht Posted: 2004-02-24 09:05 Length: 137 byte(s)
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use fping, not ping. www.fping.com
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Subject: Re: 如何获得本地网络中开机的机器数量 Author: 匿名 Posted: 2004-02-24 13:43 Length: 201 byte(s)
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[root@www root]# fping -c 1 -g 192.168.21.1 192.168.21.254 2>/dev/null \| wc -l 0 [root@www root]# 没错，我是用的fping啊，是不是什么参数没有写对
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on my host
[root@dht root]# fping -c 1 -g 192.168.10.1 192.168.10.254 2>/dev/null | wc -l
25

192.168.10.82 is my host's ip.
[root@dht root]# fping -c 1 -g 192.168.10.1 192.168.10.254 2>/dev/null
192.168.10.1 : [0], 84 bytes, 0.48 ms (0.48 avg, 0% loss)
192.168.10.2 : [0], 84 bytes, 1.48 ms (1.48 avg, 0% loss)
192.168.10.4 : [0], 84 bytes, 3.06 ms (3.06 avg, 0% loss)
192.168.10.7 : [0], 84 bytes, 0.36 ms (0.36 avg, 0% loss)
192.168.10.8 : [0], 84 bytes, 0.40 ms (0.40 avg, 0% loss)
192.168.10.10 : [0], 84 bytes, 0.47 ms (0.47 avg, 0% loss)
192.168.10.11 : [0], 84 bytes, 0.39 ms (0.39 avg, 0% loss)
192.168.10.16 : [0], 84 bytes, 0.43 ms (0.43 avg, 0% loss)
192.168.10.33 : [0], 84 bytes, 0.47 ms (0.47 avg, 0% loss)
192.168.10.40 : [0], 84 bytes, 0.39 ms (0.39 avg, 0% loss)
192.168.10.44 : [0], 84 bytes, 2.01 ms (2.01 avg, 0% loss)
192.168.10.50 : [0], 84 bytes, 0.37 ms (0.37 avg, 0% loss)
192.168.10.58 : [0], 84 bytes, 0.41 ms (0.41 avg, 0% loss)
192.168.10.82 : [0], 84 bytes, 0.04 ms (0.04 avg, 0% loss)
192.168.10.86 : [0], 84 bytes, 0.37 ms (0.37 avg, 0% loss)
192.168.10.99 : [0], 84 bytes, 0.39 ms (0.39 avg, 0% loss)
192.168.10.100 : [0], 84 bytes, 0.41 ms (0.41 avg, 0% loss)
192.168.10.105 : [0], 84 bytes, 0.17 ms (0.17 avg, 0% loss)
192.168.10.111 : [0], 84 bytes, 0.45 ms (0.45 avg, 0% loss)
192.168.10.134 : [0], 84 bytes, 0.70 ms (0.70 avg, 0% loss)
192.168.10.152 : [0], 84 bytes, 0.39 ms (0.39 avg, 0% loss)
192.168.10.169 : [0], 84 bytes, 0.34 ms (0.34 avg, 0% loss)
192.168.10.188 : [0], 84 bytes, 0.37 ms (0.37 avg, 0% loss)
192.168.10.199 : [0], 84 bytes, 0.35 ms (0.35 avg, 0% loss)
192.168.10.200 : [0], 84 bytes, 0.52 ms (0.52 avg, 0% loss)
192.168.10.210 : [0], 84 bytes, 0.44 ms (0.44 avg, 0% loss)

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