不忘初心

exec 6&-关闭exec 6<>/dev/tcp/ip.xx.port读写exec 6<&-exec 9<>/dev/tcp/ip.xx.portecho -ne "GET /index.html HTTP/1.1/r/n" >&9echo -ne "HOST:www.baidu.com/r/n" >&9

1  修改 /etc/hosts192.168.1.10    nn01192.168.1.20    nn02192.168.1.11    node1 (zookeeper)192.168.1.12    node2 (zookeeper)192.168.1.13    node3 (zookeeper)2  配置 nn02 ssh 免密码登录，包含本机/etc/ssh/ssh_config ...