Worked in Command Line but not through Apache

If something works locally and if that is not working through Apache or outside of the box in a linux system. It cab be of two problems.

1. iptables
2. selinux


With iptables, mostly outgoing connection will not be a problem if the NAT is set properly.
SELinux works on top of it.

setsebool -P httpd_can_network_connect=1

Will all outside the box connectivity with Apache or any other resources.