Can you please recommend me a good firewall to install on FreeBSD. I have a local network that accesses Internet via proxy, I would like to protect the server from external access attempts first of all
FreeBSD comes with two optional firewall forms on default. You can choose between the IPFW and the IPFILTER. There are steps needed in order to activate them, but there is alot of good documentation on the net. Find out what form suites you best. http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls.html
both the ipfw and ipfilter are used to filtering the Ip accessing the server. Its a small filtering service same like the iptables in linux. I would recommend APF to use for any unix server system for quality firewall service. http://www.rfxnetwork.ca Its a small but quite advance firewall, surely better then iptables or ipfilter. Best Regards