i had configure my vsftpd.conf file here it is:


anonymous_enable=NO
local_enable=YES
write_enable=YES
anon_upload_enable=NO
anon_mkdir_write_enable=NO
anon_other_write_enable=NO
chroot_local_user=YES
guest_enable=YES
guest_username=virtual
listen=YES
listen_port=21
pasv_min_port=30000
pasv_max_port=30999
pam_service_name=vsftpd



and this is my pam file

auth required /lib/security/pam_userdb.so db=/etc/vsftpd/vsftpd_users
account required /lib/security/pam_userdb.so db=/etc/vsftpd/vsftpd_users

but still i cant login in ftp server as virtual usrer.

Way too little info to tell what is going on, but...

What distro?
What sort of error?
What message(s) do you get at the client?
Can you login using any other ID?
Are there syslog or ftp log messages (/var/log/messages, /var/log/secure, /var/log/xferlog)?
You specified listen mode, did you start vsftpd?
Does 'netstat -anp | grep vsftpd' show the process listening?
Do you run SElinux in enforcing mode?
Did you create a home directory for that user?

Do you have a firewall blocking those ports?

I tried what was in your other post and this one, http://linuxforfun.net/2008/04/05/vsftpd-virtual-users/, and that was what my first problem was.