Date: Wed, 2 Apr 1997 14:14:24 -0600 (CST) From: Lars Jonas Olsson <ljo@mcs.net> To: questions@freebsd.org Cc: ljo@mcs.net Subject: Firewall for internal DNS server? Message-ID: <199704022014.OAA00341@Jupiter.Mcs.Net>
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I have a FreeBSD machine that's connected to internet and local LAN. The LAN has IP #s 10.x.x.x. The FreeBSD server runs sendmail, popper, squid, and named (DNS). The FreeBSD server does not forward packets. DNS is setup to be primary for 10.x.x.x and caching for everything else. There is currently no firewall or tcpwrappers etc running on server. Most services have been disabled and only a few people have login accounts. Many more have POP accounts with no login shell and no login directory. What's the best way to keep outside people from using the DNS server on the FreeBSD host? We only want to be able to get mail via pop and send mail via smtp from outside. Jonas
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