ubuntu安装vsftpd

1. 未学安装，先学卸载

apt remove --purge vsftpd

查看本地用户

root@santiagod-virtual-machine:~# tail -3 /etc/passwd
santiagod:x:1000:1000:santiagod,,,:/home/santiagod:/bin/bash
sshd:x:128:65534::/run/sshd:/usr/sbin/nologin
mysql:x:129:136:MySQL Server,,,:/nonexistent:/bin/false

2. 装包

apt install-y vsftpd

3. 启动服务

systemctl start vsftpd

再次查看本地用户

root@santiagod-virtual-machine:~# tail -3 /etc/passwd
sshd:x:128:65534::/run/sshd:/usr/sbin/nologin
mysql:x:129:136:MySQL Server,,,:/nonexistent:/bin/false
ftp:x:130:137:ftp daemon,,,:/srv/ftp:/usr/sbin/nologin

root@santiagod-virtual-machine:~# cat /etc/ftpusers 
# /etc/ftpusers: list of users disallowed FTP access. See ftpusers(5).

root
daemon
bin
sys
sync
games
man
lp
mail
news
uucp
nobody

4. 修改ftp目录(默认：/srv/ftp)，其他配置不动，在文件末尾追加一下内容

root@santiagod-virtual-machine:~# tail -10 /etc/vsftpd.conf
utf8_filesystem=YES

#userlist_enable=YES
#userlist_deny=NO
chroot_local_user=YES
chroot_list_enable=YES
chroot_list_file=/etc/vsftpd/vsftpd.chroot_list
local_root=/home/vftp

root@santiagod-virtual-machine:~# mkdir /etc/vsftpd/

root@santiagod-virtual-machine:~# echo vftp > /etc/vsftpd/vsftpd.chroot_list

然后修改/etc/pam.d/vsftpd

root@santiagod-virtual-machine:~# sed -i 's/shells/nologin/g' /etc/pam.d/vsftpd

创建登陆用户，并绑定登陆目录（用户在目录中拥有的权限，取决于登陆用户对于目录的权限属主、属组、其他人的权限）

root@santiagod-virtual-machine:~# useradd -m vftp -s /sbin/nologin

root@santiagod-virtual-machine:~# echo vftp:vftp |chpasswd  #提示bad password，但不影响ftp的登陆使用
BAD PASSWORD: The password is shorter than 8 characters
root@santiagod-virtual-machine:~# ftp 127.0.0.1
Connected to 127.0.0.1.
220 (vsFTPd 3.0.5)
Name (127.0.0.1:root): vftp
331 Please specify the password.
Password: 
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> exit
221 Goodbye.

不同于centos，在ubuntu上vsftpd安装完成后，直接给ftp用户设置密码后也是能访问的

root@santiagod-virtual-machine:~# echo ftp:Admin@123 |chpasswd
root@santiagod-virtual-machine:~# ftp 127.0.0.1
Connected to 127.0.0.1.
220 (vsFTPd 3.0.5)
Name (127.0.0.1:root): ftp
331 Please specify the password.
Password: 
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
229 Entering Extended Passive Mode (|||39748|)
150 Here comes the directory listing.
-rw-r--r--    1 0        0               4 Jun 28 23:44 test01.txt
226 Directory send OK.
ftp> exit
221 Goodbye.
root@santiagod-virtual-machine:~# ll -d /srv/ftp
drwxr-xr-x 2 root ftp 4096  6月 28 23:48 /srv/ftp/