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Date: Sun, 6 Nov 2011 00:29:05 -0400
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From: Robert Simmons <rsimmons0@gmail.com>
To: Zantgo <zantgo@gmail.com>
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Cc: "freebsd-questions@FreeBSD.org" <freebsd-questions@freebsd.org>
Subject: Re: Urgent!. Problem with / etc / rc.conf
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On Sun, Nov 6, 2011 at 12:10 AM, Zantgo <zantgo@gmail.com> wrote:
> Without wanting to erase all contents of / etc / rc.conf, by running "echo" slim_enable = "YES" "> / etc / rc.conf". Please help!.

Well, the absolute basics would be:
hostname="<YourHostNameHere>"
ifconfig_<NameOfNicCardDeviceHere>"="inet <IPADDRESS> netmask <NETMASK>"
defaultrouter="<IPOfGateway/Router>"

You may also have had:
sshd_enable="YES"

You can also look at dmesg -a and get a grasp over what other services
you had started.

Two other things, use >> rather than > to append to the file (better
yet, learn vi, it's much safer), and always backup any changes from
default you make to config files.  I keep them all on pastebin.com for
convenience, but you can keep them anywhere, even scribbled on a
postit note stuck to the front of the server in question (what I used
to do).

Rob