tcpdump -i eth1 -s0 -v -w /tmp/capture_`date +%d_%m_%Y__%H_%I_%S`.pcap

tcpdump -i eth1 -s0 -v -w /tmp/capture_`date +%d_%m_%Y__%H_%I_%S`.pcap

tcpdump into file with date format for wireshark
Sample Output
tcpdump -i eth1 -s0 -v -w /tmp/capture_`date +%d_%m_%Y__%H_%I_%S`.pcap

0
By: erez83
2015-10-21 09:54:13

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    tcpdump -i eth1 -s0 -v -w /tmp/capture.pcap
    erez83 · 2015-10-21 09:14:26 1
  • I have a small embedded linux device that I wanted to use for sniffing my external network, but I didn't want to recompile/cross-compile snort for the embedded platform. So I used tcpdump over ssh to pass all the traffic as pcap data to a "normal" Linux system that then takes the pcap data and passes it to snort for processing.


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    ssh root@pyramid \ "tcpdump -nn -i eth1 -w -" | snort -c /etc/snort/snort.conf -r -
    omish_man · 2009-08-24 14:04:06 1
  • This is useful when the local machine where you need to do the packet capture with tcpdump doesn?t have enough room to save the file, where as your remote host does tcpdump -i eth0 -w - | ssh savelocation.com -c arcfour,blowfish-cbc -C -p 50005 "cat - > /tmp/eth0.pcap" Your @ PC1 doing a tcpdump of PC1s eth0 interface and its going to save the output @ PC2 who is called save.location.com to a file /tmp/ppp1-to-me.pcap.gz again on PC2 More info @: http://www.kossboss.com/linuxtcpdump1 Show Sample Output


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    tcpdump -i eth0 -w - | ssh savelocation.com -c arcfour,blowfish-cbc -C -p 50005 "cat - > /tmp/eth0.pcap"
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  • The tcpdump arguments are just an example.


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    tcpdump -w "$(sed 's/-//gi; s/ /_/gi'<<<"-vvv -s0 -ieth1 -c10 icmp").pcap"
    brejktru · 2011-05-03 20:44:01 0
  • NOTE: When opening the files you might need to strip the very top line with notepad++ as its a mistake header This is useful when the local machine where you need to do the packet capture with tcpdump doesn?t have enough room to save the file, where as your remote host does tcpdump -i eth0 -w - | ssh forge.remotehost.com -c arcfour,blowfish-cbc -C -p 50005 "cat - | gzip > /tmp/eth0.pcap.gz" Your @ PC1 doing a tcpdump of PC1s eth0 interface and its going to save the output @ PC2 who is called save.location.com to a file /tmp/eth0-to-me.pcap.gz again on PC2 More info @: http://www.kossboss.com/linuxtcpdump1 Show Sample Output


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    tcpdump -i eth0 -w - | ssh forge.remotehost.com -c arcfour,blowfish-cbc -C -p 50005 "cat - | gzip > /tmp/eth0.pcap.gz"
    bhbmaster · 2013-05-30 07:41:22 0
  • then open with wireshark


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    tcpdump src <srcIP> and dst <dstIP> -w file.pcap
    huazhihao · 2012-12-27 07:15:39 0

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