Install vsftp on CentOS 5.5

Install vsftp package
# yum install vsftpd

Modify the configuration files as your request
# vi /etc/vsftpd/vsftpd.conf
# vi /etc/vsftpd/user_list
# vi /etc/vsftpd/ftpusers

Make the vsftpd service boot up automatically
# chkconfig vsftpd on

Start the vsftpd service
# service vsftpd start