ubuntu必安装工具

Ubuntu 16.04安装配置Samba服务
    1： sudo apt-get install samba
    2： sudo smbpasswd -a ubuntu        # for user ubuntu add samba password
    3: sudo mkdir ~/work; sudo chmod 777 ~/work
    4： add contents below to the end of file /etc/samba/smb.conf
        [work]
        comment = ubuntu user samba home directory 
        path = /home/ubuntu/work
        public = yes
        browseable = yes
        create mask = 0777
        directory mask = 0777 
        force user = nobody
        force group = nogroup
        available = yes
    5： sudo service smbd restart

Ubuntu环境下SSH的安装
    sudo apt-get install ssh openssh-client ssh-keygen openssh-server
Ubuntu环境下netstat的安装
    sudo apt install net-tools