If enabled, allow_url_fopen allows PHP’s file functions to retrieve data from remote locations such as an FTP server or web site, and could lead to code injection vulnerabilities.

You can enable ‘allow_url_fopen’ by editing your php.ini file.

Find the php.ini file with this path:  /home/00000/etc/php.ini.   (where 00000 will be your Site Number).

Search or Add  this “allow_url_fopen”  and change the value with On.

allow_url_fopen = On

Also be sure to add the following to your php.ini:

memory_limit = 100M

cgi.fix_pathinfo=1

http://coding.smashingmagazine.com/2012/01/23/introduction-to-linux-commands/

http://www.question-defense.com/2010/01/25/install-ncftp-ncftpget-ncftpput-using-yum-on-centos-linux-server