Date: Wed, 19 Jan 2005 13:26:27 +0100 From: Erik Norgaard <norgaard@locolomo.org> To: Tom Huppi <thuppi@huppi.com> Cc: freebsd-questions@freebsd.org Subject: Re: NAT/DNS question/recommendation? Message-ID: <41EE51F3.8090501@locolomo.org> In-Reply-To: <Pine.BSF.4.58.0501190410370.85704@nuumen.pair.com> References: <Pine.BSF.4.58.0501190410370.85704@nuumen.pair.com>
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Tom Huppi wrote: > I have a FreeBSD 5.3 workstation connected to the net via user-ppp > with a dynamic IP. I have user-ppp doing both NAT and simple > firewall. > > I have a headless server box, also 5.3, set up as a NAT client. > I run it only when I need the horsepower since it's loud and sucks > power. > > My problem is that the NAT client acts funny. It makes the > gateway/workstation box dial up when I attempt to automount from > it for example. Also I've had troubles with ssh delays. I'm > pretty sure that what is happening is that it wants to use DNS to > resolve names sometime even though all that it needs _should_ be > in the /etc/hosts file (and nsswitch.conf lists files first.) > > On the NAT client, I have my defaultrouter set to the NAT server's > IP (in the 172.16 range.) Also I have my ISP's dns server in > /etc/resolv.conf. I can't seem to make things work well any other > way. > > Can someone recommend a better setup to aviod my problems, or > suggest that I should _not_ be having these problems with this > setup and that something else in my setup must be wrong? > > A long, long time ago, I set up a caching-only DNS server on a > gateway box 'for the fun of it.' If there is not a simpler > solution, I'll do it again (though the fun has worn off), but I > thought I'de ask here first. > > BTW, I have done some research on this, but really didn't find > that many specific details about NAT client > configuration...possibly I just didn't look hard enough. Maybe you are searching for the wrong keywords. I simply haven't heard of anyone speak of a "NAT client" or "NAT Server" before. Secondly you haven't told us anything about how things are setup: Are you using ipfw, ipf or pf? What are your nat-rules? what are your filter rules? You are trying to automount what? nfs, smbfs? ssh delays? did you try to type in the ip to see if it was faster? I think I get the picture of your network but sometimes it helps a lot if you scetch the network with a ascii-diagram, add ip's etc. Cheers, Erik -- Ph: +34.666334818 web: www.locolomo.org S/MIME Certificate: http://www.locolomo.org/crt/2004071206.crt Subject ID: A9:76:7A:ED:06:95:2B:8D:48:97:CE:F2:3F:42:C8:F2:22:DE:4C:B9 Fingerprint: 4A:E8:63:38:46:F6:9A:5D:B4:DC:29:41:3F:62:D3:0A:73:25:67:C2
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