Solve the problem of Linux FTP anonymous upload and download starting automatically

If you often use FTP server in your study or work, you can set it to start automatically at boot. Before setting it, you need to understand several commands about automatic startup.

1.chkconfig command

Main function: used to check and set various system services. There are several important parameters. First, understand --list. chkconfig --list: lists all the commands that chkconfig knows. chkconfig service name on /off: turn on or off the service (usually start or stop automatically at boot)

2. Check whether vsftpd is set to start automatically at boot.

chkconfig --list | grep vsftpd: "|" means pipe, which is used to connect the two commands and use the output of the previous command as the input of the latter command. Note that it is the standard input and output of the command, because the pipe command will automatically ignore the wrong standard input.

grep: a powerful text search tool in Linux system

The above results show that vsftpd is not set to start automatically at any level.

2. Set vsftpd to start automatically at boot, command: chkconfig vsftpd on

You can see that vsftpd has been started at levels 2 3 4 5, indicating that it has been set up successfully.

3. If you want to perform anonymous operations, first make sure that anonymous_enable=YES in the vsftpd.conf configuration file.
Server IP: 192.168.12.2 (linux)
Client IP: 192.168.12.1 (Win 10)

echo: print the value of a variable or a given string, >: redirect standard output to input the command correctly into the specified file in an overwriting manner; >>: redirect standard output to input the command correctly into the specified file in an appending manner,

4. Log in to the client and download the test.txt file

5. To upload files, you need to modify the vsftpd.conf configuration file, anon_`upload_enable=YES, to enable the upload function; if you want anonymous users to create files and write, you can turn on anon_mkdir_write_enable=YES. After the modification, you must restart the vsftpd service, remember!

To implement the upload function:

If you encounter the following situation, don't worry, it may be that the pub folder has insufficient permissions. Just increase the permissions: chmod 777 /var/ftp/pub

Retest:

View on the server side:

Summarize

The above is the editor's introduction to solving the problem of Linux FTP anonymous uploading and downloading automatically starting at boot. I hope it will be helpful to everyone!