python FTP服务器实现（Python3）

   创建一个ftp.py文件（Linux环境），插入以下代码:

    from pyftpdlib.authorizers import DummyAuthorizer
    from pyftpdlib.handlers import FTPHandler
    from pyftpdlib.servers import FTPServer

实例化DummyAuthorizer来创建ftp用户

    authorizer = DummyAuthorizer()
参数：用户名，密码，目录，权限

    authorizer.add_user('test', '12345', '/root/ftp', perm='elradfmwMT')
    authorizer.add_user('tese1', '12345', '/root/ftp', perm='elradfmwMT')
 匿名登录

    authorizer.add_anonymous('/home/nobody')
    handler = FTPHandler
    handler.authorizer = authorizer

参数：IP，端口，handler

    server = FTPServer(('172.31.8.88', 21), handler)
    server.serve_forever()

文件保存

    :wq 保存文件

运行：

    root@k8s-node1 ~]# nohup python3 ftp.py &
    [1] 1737
    [root@k8s-node1 ~]# nohup: 忽略输入并把输出追加到"nohup.out"
    [root@k8s-node1 ~]# root@k8s-node1 ~]# tail -f nohup.out 
    [I 2018-11-30 12:52:03] 172.31.8.3:52635-[test] USER 'test' logged in.
    [I 2018-11-30 12:57:03] 172.31.8.3:52635-[test] Control connection timed out.
    [I 2018-11-30 12:57:03] 172.31.8.3:52635-[test] FTP session closed (disconnect).
    [I 2018-12-20 09:36:26] >>> starting FTP server on 172.31.8.88:21, pid=1737 <<<
    [I 2018-12-20 09:36:26] concurrency model: async
    [I 2018-12-20 09:36:26] masquerade (NAT) address: None
    [I 2018-12-20 09:36:26] passive ports: None
    [I 2018-12-20 09:36:49] 172.31.8.3:52150-[] FTP session opened (connect)
    [I 2018-12-20 09:36:52] 172.31.8.3:52150-[] USER 'anonymous' failed login.
    [I 2018-12-20 09:36:52] 172.31.8.3:52150-[] FTP session closed (disconnect).
    [I 2018-12-20 09:37:09] 172.31.8.3:52156-[] FTP session opened (connect)
    [I 2018-12-20 09:37:12] 172.31.8.3:52156-[] USER 'test' failed login.
    [I 2018-12-20 09:37:12] 172.31.8.3:52156-[] FTP session closed (disconnect).
    [I 2018-12-20 09:37:16] 172.31.8.3:52159-[] FTP session opened (connect)
    [I 2018-12-20 09:37:16] 172.31.8.3:52159-[test] USER 'test' logged in.
    [I 2018-12-20 09:37:16] 172.31.8.3:52159-[test] FTP session closed (disconnect).
    [I 2018-12-20 09:37:16] 172.31.8.3:52160-[] FTP session opened (connect)
    [I 2018-12-20 09:37:16] 172.31.8.3:52160-[test] USER 'test' logged in.
    [I 2018-12-20 09:40:13] 172.31.8.3:52160-[test] FTP session closed (disconnect).