On 03/03/2010 10:26 PM, hadi motamedi wrote: > > I issued 'iptables -L' but it is returning just the followings : > 'Usage: /etc/rc.d/init.d/iptables > {start|stop|restart|condrestart|status|panic|save}' > Can you please let me know why? Change directory out of /etc/init.d and into your homedirectory As Eero has already told you, if iptables is not running, then it cannot be blocking ports. Use netstat to see what ports are listening on what IP's, and configure your application appropriately.