Install and configure FTP on CentOS7

1. Install vsftpd

#install vsftpd
 yum  install - y vsftpd
#set startup
systemctl enable vsftpd.service
# restart
service vsftpd restart
# View the status of the vsftpd service
systemctl status vsftpd.service

 

---

2. Configure vsftpd.conf

#Backup configuration file 
 cp /etc/vsftpd/vsftpd.conf /etc/vsftpd/ vsftpd.conf.bak

#Execute the following commands
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 to FTP service./g" '/etc/vsftpd/vsftpd.conf'

#Add the following to the end of vsftpd.conf
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
 vi /etc/vsftpd/ virtusers
chris
123456
chang
123456

 

---

4. Generate User Data 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

 

---

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

auth sufficient /lib64/security/pam_userdb.so db=/etc/vsftpd/virtusers

account sufficient /lib64/security/pam_userdb.so db=/etc/vsftpd/virtusers

# 如果系统为32位，上面改为lib

 

---

6. 新建系统用户vsftpd，用户目录为/home/vsftpd

#用户登录终端设为/bin/false(即：使之不能登录系统)
useradd vsftpd -d /home/vsftpd -s /bin/false
chown -R vsftpd:vsftpd /home/vsftpd

 

---

7.建立虚拟用户个人配置文件

mkdir /etc/vsftpd/vconf
cd /etc/vsftpd/vconf

#这里建立两个虚拟用户配合文件
touch chris chang

#建立用户根目录
mkdir -p /home/vsftpd/chris/

#编辑chris用户配置文件，内容如下，其他用户类似
vi chris

local_root=/home/vsftpd/chris/
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

vi /etc/sysconfig/iptables
#Edit the iptables file, add the following, open port 21
-A INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT

 

9. Restart vsftpd server

service vsftpd restart