Hi, I need a firewall software which will block social websites and shopping websites for our small scale industry. previously i had a centos configured firewall with linux ubuntu server, due to the on board lan failure and the pci slot too failed i am unable to use the lan port or the pci add on port to configure back my firewall through the same. So i planned to manually install a firewall software in all pc to block internet usage, any suggestions kindly let me know. I have already used zone alarm and comodo softwares but not happy with those. As i am a newbie with this kindly help me with procedures. I want to access lan connected to my linux server and only need to block the above mentioned websites other than that i need internet connection for our outlookmail, kindly let me know how to configure so. Thanks in advance.