go build时出现Get https://proxy.golang.org/github.com...错误，执行
1 | go env -w GOPROXY=https://goproxy.cn |
refer to: https://blog.csdn.net/qq_22211217/article/details/101854419
Month: June 2020
cannot find -lbz2
ubuntu下编译源码出现错误
1 | /usr/bin/ld: cannot find -lbz2 |
解决办法
1 | apt-get install libbz2-dev |
wireshark过滤数据包的第一个INT
比如，tcp连接，往往包头第一个INT或第二个INT表示包的类型，可以用wireshark过滤显示指定类型的数据包，比如过滤包头第一个INT对应整型值为10的包的过滤表达式为
1 | ip.addr == 192.168.1.21 && tcp.port == 7222 && frame[54:4]==0a:00:00:00 |
附：tcpdump抓包
1 | tcpdump -i eth0 -w file.cap host 192.168.168.18 and tcp port 8081 |
refer to:
https://blog.csdn.net/qq_19167629/article/details/83088878