Fix the FTP server command works, but the tool doesn't work.
We have created a new FTP server in the new domain
Server An and Service B have a new firewall before.
The tcp21 port from server A to server B has been reached.
Found that the command works well, but the tool does not work well.
System-view
Firewall interzone trust untrust
Detect ftp
Our problem's solved.
For the principle, please see the previous article.
