useradd -d /data/evan  -s /bin/bash -m  evan
数m表示如果该目录不存在，则创建该目录


apt install net-tools vim  build-essential

#全面的开发工具
sudo aptitude install git golang build-essential gcc g++ gdb libboost-dev make automake autogen autoconf cscope global cmake cmake-gui astyle clang-format clang llvm lldb libsqlite3-dev sqlite3 bison flex ruby-dev linux-headers-`uname -r`



安装Fail2Ban