我想使用tcpdump查看pcap文件中数据包的绝对时间戳。当我使用命令tcpdump -r mypcapfiile
时,它只显示时间,
03:21:14.804778 IP static.vnpt.vn.51193 > 192.168.0.146.smtp
如何阅读日期?
答案 0 :(得分:4)
您可以使用-tttt
选项:
$ tcpdump -tttt -nr tmp.pcap
reading from file tmp.pcap, link-type EN10MB (Ethernet)
2018-01-19 17:50:43.275918 IP 172.24.0.97.45386 > 93.153.221.29.80: Flags [.], ack 3335572340, win 251, options [nop,nop,TS val 98777655 ecr 230462279], length 0
2018-01-19 17:50:43.287273 IP 93.153.221.29.80 > 172.24.0.97.45386: Flags [.], ack 1, win 285, options [nop,nop,TS val 230464839 ecr 98706059], length 0
2018-01-19 17:50:44.138480 ARP, Request who-has 172.24.0.73 tell 172.24.0.78, length 46
2018-01-19 17:50:45.162482 ARP, Request who-has 172.24.0.73 tell 172.24.0.78, length 46
答案 1 :(得分:0)
下面的例子将给出时间戳的输出
tcpdump -i any -lnv port 53 -tttt | egrep -i "东西" -B1
示例: 2021-01-29 00:17:28.143766 IP (tos 0x0, ttl 254, id 60132, 偏移量 0, 标志 [DF], proto UDP (17), 长度 68) 10.10.15.4.9193 > 10.10.27.251.53:42463+A?东西.com。 (40)