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touch /etc/vsftpd.user_list(使其为空)

nano /etc/vsftpd.conf

userlist_deny=YES
local_enable=YES
write_enable=YES
listen=YES
chroot_local_user=NO
userlist_enable=YES
local_umask=022
use_localtime=YES

nano /etc/pam.d/vsftpd

#auth       required    pam_listfile.so item=user sense=deny