Summary of vsftpd in Linux

Although secur CRT can use RZ to transfer files in Linux, we still need to learn how

In Linux, FTP is configured. This article explains how to use vsftpd to make a summary.

1. Install vsftpd. rpm

Rpm-uvh vsftpd. RMP

2. Install the DB Toolkit

Rpm-uvh db4-utils.rpm

3. Create two folders:/usr/local/FTP/home1 and/usr/local/FTP/home2.

4. Create two ftpuser1 and ftpuser2 users and disable them from logging on to the shell. They are only used for FTP login.

Useradd-D/usr/local/FTP/home1-S/sbin/nologin ftpuser1

Chown ftpuser1/usr/local/FTP/home1-R

Chmod 777/usr/local/FTP/home1-R

Similarly, set ftpuser2 as follows:

5. Set the password for ftpuser1 and ftpuser2, set the FTP user list, singular behavior account, and even behavior password:

CD/etc/vsftpd

VI vuser.txt

Ftpuser1

123456

Ftpuser2

123456

6. Use db_load to create a user database

Db_load-T-t hash-F/etc/vsftpd/vusers.txt/etc/vsftpd/vusers. DB

Chmod 600 vusers .*

7. Create the PAM Configuration File required by the FTP user

VI/etc/PAM. d/vsftpd. Pam

Auth required/lib/security/pam_userdb.so.db =/etc/vsftpd/vusers

Account required/lib/security/pam_userdb.so.db =/etc/vsftpd/vusers

8. Add the FTP user account to the FTP permission list

VI/etc/vsfftpd/user_list

Ftpuser1

Ftpuser2

9. Create an FTP user folder to store the configuration files of each user.

Mkdir/etc/vsftpd/vuser_conf

10 configure the configuration files for each user, as shown in figure

VI ftpuser1

Annon_world_readable_only = No enable browsing by other users

Write_enable = yes. The User Write Permission is enabled.

Anon_upload_enable = Yes

Anon_mkdir_write_enable = Yes

Anon_other_write_enable = Yes permissions that can be deleted by anonymous accounts

Local_root =/usr/local/FTP/home1 specify the directories that the current user can only access

11. Remove the comment lines in the default vsftpd. conf configuration file of the backup system.

CD/etc/vsftpd

CP vstpd. conf vsftpd. conf. Bak

Grep-V ^ # vsftpd. conf. Bak> vsftpd. conf

12 configure vsftp. conf

Anonymous_enable = No

Local_enable = Yes

Write_enable = Yes

Local_umask = 022 (022 indicates that the directory permission is 755)

Dirmessage_enable = Yes

........

Pam_service_name = vsftpd. Pam vsftpd verification file

Userlist_enable = Yes

Userlist_deny = No

User_config_dir =/etc/vsftpd/vuser_conf

Chroot_local_user = yes is restricted to the user's own directory

13 restart the service

Service vsftpd restart