vsFTPD with chroot and Public IP with custom Port

Restricting to web directory

Group          :              ftpusers is a group

Username   :              xyz is user account that needs be jailed. User account configuration :
Create user account with these parameters for xyz 
Home Directory    /home/xyz
home directory should be own by root:ftpusers with chmod 755
e.g permission of /home is root:ftpusers and chmod 755

• permission of /home/xyz is root:ftpusers and chmod 755

• create a folder in /home/xyz/public_html

• permission of upload should be xyz:ftpusers and chmod 755

VSFTPD Config

connect_from_port_20=YES

pam_service_name=vsftpd

userlist_enable=YES

pasv_promiscuous=YES

chroot_local_user=YES

pam_service_name=vsftpd

userlist_enable=YES

tcp_wrappers=NO

listen=YES

chmod_enable=NO

cmds_allowed=ABOR,QUIT,LIST,PASV,RETR,CWD,STOR,TYPE,PWD,SIZE,NLST,PORT,SYST,PRET,MDTM,DEL,MKD,RMD,DELE

listen_port=9221

pasv_enable=YES

#pasv_addr_resolve=YES

pasv_min_port=5000

pasv_max_port=5020

SSHD Config

Subsystem       sftp    /usr/libexec/openssh/sftp-server

Match User pb_ftp

        ChrootDirectory /home/xyz/public_html

        X11Forwarding no

        AllowTcpForwarding no