嵌入式工程师

modprobe vboxguest failed.则无法双向拖动，copy等操作。执行：$ sudo yum install -y "kernel-devel-uname-r == $(uname -r)"$ cd /run/media/root/VBOXADDITIONS_5.1.22_115126$ sudo sh ./VBoxLinuxAdditions.run重启即可...

ERROR - file: connection_pool.c, line: 130, connect to 192.168.2.73:22122 fail, errno: 111, error info: Connection refused解决办法：systemctl stop firewalld.service #关闭防火墙/etc/init.d/fdfs_trackerd sta...

安装 https://github.com/happyfish100/fastdfs/wiki