FTP port:
Port 21: a control command, the command received FTP client for execution.
20 port: data transmission, for uploading, downloading data files.
VSFTP installation service program
yum install vsftpd -y
Vsftpd program and configuration files:
A. Use anonymous access mode
1. Edit Profile
In the configuration file which open anonymous users to upload and write permissions to open or write to the following parameters:
2. Then restart vsftpd service program
3. Under windows can anonymously access the folder
4. Once inside the folder is empty, you can build a file
Then you can see built into the file
5. rename and delete but the error occurs when, modify the permissions, permission to increase
Then increases the authority, you can download files to local and renamed.