Re: Newbie two homed question.

From: Larry Lindstrom (nobody_at_aracnet.com)
Date: 12/13/04 

Date: Mon, 13 Dec 2004 17:49:58 GMT

Bit Twister wrote:
> On Sun, 12 Dec 2004 23:54:05 GMT, Larry Lindstrom wrote:
>
>
>> It started out good, eth1 initialized on boot with
>>no complaints.

Thanks Bit:

    You nailed it.

    The "ipconfig /release" seems to have done it.

    You introduce this toward the end of your post.
I have some questions about some other points.

> To prove you received a lease, one of the following might work
> cat /etc/dhcpc/dhcpcd-eth1.info
> cat /var/lib/dhcp/dhclient-eth1.leases

    For RH9 it's the /var path. Thanks for showing
me the choices of different Linux systems.

> Just for fun, change the linux-1 to linux_1 and look in
> /etc/sysconfig/network-scripts/ for ifcfg-eth* files to make sure
> there is only one ifcfg-eth0 and ifcfg-eth1 file for those nics.

    I didn't do this, because you solved the problem
with the "ipconfig /release", but I have a question.
When I named a earlier PC (6.2 or 7.something or maybe
this version 9) RH on a PC named "linux_1" I was
surprised to find the "_" is not a legal character in
the name of a network node. Was I mistaken? Solaris
and Windows tolerate the use of an underscore, it was
Linux that slapped me for violating this rule.

> If I were you, I would create a ~4 gig free/unformated/unknown
> partition on the doze box and install the RH 9 with the gui stuff,
> That way you can dual boot the doze box.

    Win2k and Win98 share that computer with Solaris.
As I understand it, Solaris and Linux have some
conflict with partition IDs. I believe this is only
an issue at installation, but it's a problem, and I
don't have room for another OS anyway anyway.

> to see the dhcp client do it's thing and compare config files.
>
> I do not believe comcast.net cares which nic mac address the cable
> modem sees. Before shutting down doze for the cable swap, pop up a
> cmd terminal and do a
> ipconfig /all for hard copy and then do an
> ipconfig /release
>
> Just to keep the comcast dhcp server honest.

    That did something. After doing this "ipconfig
/release" I had the eth1 initialization error at boot.
Then I cycled the power to the cable modem again, as
you suggest, and RH9 booted, and initialized eth1 with
with no complaints. I ran "netstat -rn". There was
my "UG" on the eth1 line. I then ping the IP address
for yahoo.com and then the URL "yahoo.com" and both
work!

    The one stop solution Matt van de Werken recommends
is attractive. I expect to be using that someday.
But this is the way I'll go for now. I've had good
experience when running IPFilter on an old Solaris PC.

> Since Mandrakelinux not much else I can help with.

    You've done more than anyone could ask.

    But I still have a couple of questions.

    This is an old 266MHz Pentium. I tried running
the Gnome GUI and it was pathetic. Is there a way
to run GUI apps, for system administration tasks
and such, remotely? My Solaris systems run Motif
and Gnome, so they can serve as terminals. Is
there a performance hit on a text only host if
it's running GUI applications where the X Window
servers are on client machines?

    My other question relates to using this system for
Linux compiles for building utilities needed by the
system and rarely to never on my own code, or perhaps
to browse to acquire utilities or updates.

    Do these activities present a security risk over
using this RH9 PC only for a firewall/browser?

                                              Thanks
                                              Larry

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