If you're experimenting in a virtual machine, it's a good idea to take a snapshot first to avoid restoring in case of error
1 . install vsftpd
#First check if you have vsftp installed
[root@localhost /]# rpm -q vsftpd
vsftpd-3.0.2-10.el7.x86_64 (It shows that the installation is successful!)
#If not, install vsftpd
[root@localhost/]# yum install -y vsftpd
# check again when done
[root@localhost /]# whereis vsftpd
vsftpd:/usr/sbin/vsftpd /etc/vsftpd/usr/share/man/man8/vsftpd
#View the status of the vsftpd service
[root@localhost /]# systemctl status vsftpd.service
(If it is active, there will be an active green mark)
#Activate vsftpd service
[root@localhost /]# systemctl start vsftpd.service
#Set the vsftpd service to start automatically at boot
[root@localhost /]#systemctl enable vsftpd.service
2. Configure vsftpd.conf
#First back up the configuration file (must be backed up to avoid recovery in the event of an accident.)
cp /etc/vsftpd/vsftpd.conf /etc/vsftpd/vsftpd.conf.bak
#Execute the following command (sed -i command is equivalent to directly modifying the original file)
sed -i "s/anonymous_enable=YES/anonymous_enable=NO/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#anon_upload_enable=YES/anon_upload_enable=NO/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#anon_mkdir_write_enable=YES/anon_mkdir_write_enable=YES/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#chown_uploads=YES/chown_uploads=NO/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#async_abor_enable=YES/async_abor_enable=YES/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#ascii_upload_enable=YES/ascii_upload_enable=YES/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#ascii_download_enable=YES/ascii_download_enable=YES/g" '/etc/vsftpd/vsftpd.conf'
sed -i "s/#ftpd_banner=Welcome to blah FTP service./ftpd_banner=Welcome toFTP service./g" '/etc/vsftpd/vsftpd.conf'
(Actually, you can also use
vim /etc/vsftpd/vsftpd.conf Enter the configuration file and modify it as follows
anonymous_enable=NO # Disable anonymous login
ascii_upload_enable=YES
ascii_download_enable=YES
chroot_local_user=YES # Enable restricted users in their home directory
)
#Add the following to the end of vsftpd.conf after
use_localtime=YES
listen_port=21
chroot_local_user=YES
idle_session_timeout=300
guest_enable=YES
guest_username=vsftpd
user_config_dir=/etc/vsftpd/vconf
data_connection_timeout=1
virtual_use_local_privs=YES
pasv_min_port=10060
pasv_max_port=10090
accept_timeout=5
connect_timeout=1
3. Create a user file
#The first line of user name, the second line of password, cannot use root as the user name
vim /etc/vsftpd/virtusers
add content
test
123456
liu
123456
First you need to determine if you have the db_load command
rpm –q db
Check before installing
yum search db4
Install
yum install-y compat-db47.x86_64 (depending on your machine)
generate db file
db_load -T -t hash-f /etc/vsftpd/virtusers /etc/vsftpd/virtusers.db
#Set the PAM authentication file and specify to read the virtual user database file
chmod 600 /etc/vsftpd/virtusers.db (permission r,w)
5. Modify the /etc/pam.d/vsftpd file
# Backup before modifying
cp /etc/pam.d/vsftpd /etc/pam.d/vsftpd.bak
# Comment out all configuration lines for auth and account
vi /etc/pam.d/vsftpd
Add these two sentences inside
auth sufficient/lib64/security/pam_userdb.so db=/etc/vsftpd/virtusers
account sufficient/lib64/security/pam_userdb.so db=/etc/vsftpd/virtusers
# If the system is 32-bit, the above lib64 is changed to lib
6. Create a new system user vsftpd , the user directory is /home/vsftpd
#Create a vsftpd folder in the home directory first, which is also the space we visit
mkdir -p /home/vsftpd
#User login terminal is set to /bin/ false (ie: make it impossible to log in to the system)
useradd vsftpd -d/home/vsftpd -s /bin/false
chown -R vsftpd:vsftpd /home/vsftpd
7. Create a virtual user personal profile
mkdir /etc/vsftpd/vconf
cd/etc/vsftpd/vconf
#Create two virtual user cooperation files here
touch test liu
#Create user root directory
mkdir -p /home/vsftpd/test/
#Edit the test user configuration file, the content is as follows, other users are similar
we test
local_root=/home/vsftpd/test/
write_enable=YES
anon_world_readable_only=NO
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
8. Firewall settings ( centos 7 )
#If the system has firewall and SELinux enabled, the following configuration must be done (by default, centos7 uses firewall and selinux, not iptables)
#Firewall add FTP service:
[root@localhost vsftpd]#firewall-cmd --permanent --zone=public --add-service=ftp
[root@localhost vsftpd]#firewall-cmd --reload
#Set up SELinux :
[root@localhost vsftpd]#getsebool -a | grep ftp
[root@localhost vsftpd]#setsebool -P ftpd_full_access on
9. Restart the vsftpd server
[root@localhostchris]# systemctl stop vsftpd.service
[root@localhostchris]# systemctl start vsftpd.service
[root@localhostchris]# systemctl status vsftpd.service
10. Test in several folders under /home/vsftpd/test/
mkdir /home/vsftpd/test/test{1..5}
11. Enter ftp://192.168.163.126 ( LAN ) in the browser or my computer to test