按现在的配置，FTP很不稳定，一会能登陆一会又不行了，请问哪个地方错了啊，谢谢

/home/ftp的权限是755，homt/ftp下的几个文件夹权限都是777

我的配置文件是

listen=YES
listen_address=192.168.1.12
#listen_ipv6=YES
#
anonymous_enable=YES
#local_enable=YES
write_enable=YES
local_umask=022

anon_root=/home/ftp
anon_upload_enable=yes
anon_mkdir_write_enable=no
anon_other_write_enable=no
anon_world_readable_only=no

anon_max_rate=1000000
max_clients=100
max_per_ip=4
accept_timeout=60
data_connection_timeout=120
idle_session_timeout=600

dirmessage_enable=YES

dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
#chown_uploads=YES
#chown_username=whoever
#xferlog_file=/var/log/vsftpd.log
#idle_session_timeout=600
#data_connection_timeout=120
#
#nopriv_user=ftpsecure
#async_abor_enable=YES
#nopriv_user=ftpsecure
#async_abor_enable=YES
#
#ascii_upload_enable=YES
#ascii_download_enable=YES
#ftpd_banner=Welcome to blah FTP service.
#
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd.banned_emails
#
#banned_email_file=/etc/vsftpd.banned_emails
#
# chroot_list_enable below.
#chroot_local_user=YES
#
#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#ls_recurse_enable=YES
secure_chroot_dir=/var/run/vsftpd
pam_service_name=vsftpd
#
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key