编辑：它已被修复通过添加pasv_addr_resolve = yes到configuration文件，并设置iptables例外被动范围使用此命令：iptables -I INPUT -p tcp –dport pasvstart：pasvend -j ACCEPT
我已经把端口转发了20和21，和50000-60000。
我无法从局域网或Internet访问该服务。
ftptest.net结果：
Warning: Plaintext FTP is insecure. You should use explicit FTP over TLS. Status: Resolving address of (public ip) Status: Connecting to (public ip) Warning: The entered address does not resolve to an IPv6 address. Status: Connected, waiting for welcome message... Reply: 220 (vsFTPd 3.0.2) Command: CLNT https://ftptest.net on behalf of 2a02:2788:74:1b5c:b91f:d77c:f39f:4352 Reply: 530 Please login with USER and PASS. Command: USER nasftp Reply: 331 Please specify the password. Command: PASS ********* Reply: 230 Login successful. Command: SYST Reply: 215 UNIX Type: L8 Command: FEAT Reply: 211-Features: Reply: EPRT Reply: EPSV Reply: MDTM Reply: PASV Reply: REST STREAM Reply: SIZE Reply: TVFS Reply: UTF8 Reply: 211 End Warning: The server does not indicate MLSD support. MLSD uses a well-specified listing format. Without MLSD, directory listings have to be obtained using LIST which uses an unspecified output format. Command: PWD Reply: 257 "/" Status: Current path is / Command: TYPE I Reply: 200 Switching to Binary mode. Command: PASV Error: Connection timed out Vsftpdconfiguration文件： http ： //pastebin.com/0JmDPsmv
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