Shulou(Shulou.com)06/02 Report--

Ubuntu version:

Root@ubuntunanjing:/home/itgo# uname-a

Linux ubuntunanjing 4.15.0-58-generic # 64~16.04.1-Ubuntu SMP Wed Aug 7 14:10:35 UTC 2019 x86 "64 GNU/Linux

Vsftpd version:

Version: 3.0.3-3ubuntu2

Phenomenon:

1 using the ftp graphical client interface, you can connect to the server, but always report directory browsing failure, resulting in unable to connect

2 using the ftp command in linux, you can connect to the server, but when you hit the command, there is no response for a long time, resulting in a connection timeout

Solution:

1 there is no problem in connecting to yourself on the server, which proves that ftp server is ok.

The firewall used on 2 ubuntu, ufw, has turned on port 21, but it still doesn't work.

3 therefore, modify the / etc/vsfptd.conf configuration file:

Modify:

Connect_from_port_20=YES

Newly added:

Pasv_enable=YES

Pasv_min_port=30000

Pasv_max_port=30999

Restart the vsftpd service

4 modify ufw firewall:

Ufw allow proto tcp from any to any port 30000:30999

Ufw reload

Solve the problem!

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