Possible Duplicate:
Open Source Unified Threat Management Software Options
I want to install firewall which have following features Antispam, Anti Virus, Webfiltering, Userwise access, Intrusion prevention etc. is any product from open source )(ie untangle/ipcop) any other solution for the above implementation if any one can help me with this.
Pfsense can do most of this if you add extra packages which are easily installable inside the distribution. It is also very stable and intuitive to use.
Look at Endian Firewall
Endian Download