1.linux 安装 Redis 进到 utils 目录下执行 ./install_server.sh 时提示报错：

This systems seems to use systemd.
Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!

解决方案：

　　a) vi ./install_server.sh

　　b) 注释如下代码

#bail if this system is managed by systemd
#_pid_1_exe="$(readlink -f /proc/1/exe)"
#if [ "${_pid_1_exe##*/}" = systemd ]
#then
#       echo "This systems seems to use systemd."
#       echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
#       exit 1
#fi

　　c) 再次执行./install_server.sh

2. CentOS7：ifconfig command not found解决

解决方案：

　　yum install net-tools -y