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Hi Dan,
I am working through the howto you advised me to follow.
I have gotten to the part where I am supposed to create the tunnel between
the real servers and the virtual server address. I loaded the ipip module,
then typed in the command "ifconfig tun10 0.0.0.0 up. Now I admit that I
am not experienced with ip tunneling (I was thinking of using NAT -- but
hey I just want it to work! So it doesn't really matter). Anyway, when I
issued that command it gave me this error: SIOCSIFADDR: no such
device. Can you give me some advice on how to make one? (I tried to make
one like I would for an ordinary ethernet card, but named the device as
tun10... didn't work.) Or is it something else?
I really appreciate the help.
Chris
At 11:29 AM 1/9/2002 -0800, you wrote:
> Hello everyone:
>
> I have been struggling with this about a week now --
> non-stop... Please
> indulge me, I could REALLY use the help.
>
> This is what we want:
>
> -----------------
> | Internet |
> ------------------
> |
> ------------------
> | Router |
> -------------------
> |
> -------------------
> | Firewall |
> --------------------
> | |
> / \
> / \
> -------------- ----------------
> | Director A |+ +| Director B |
> -------------- -----------------
> | |
> --------------------------------------------------------------
> ---------------------
> | | |
> ------------- ------------ --------- ---------------
> | Web C | | DB D | | DB E | | Web F |
> ------------- ------------ --------- ---------------
>
>
>
> We are looking for redundancy here. We have one website to
> serve. We
> would have that site synced between machines C and F. These
> websites would
> pull data from the Data Base machines D and E. The load
> balancers would do
> what you would expect, i.e. balance the traffic.
>
> I started out at Ultramonkey, I have reall all of the
> documentation I could
> find there, and got nowhere (but frustrated). They start you out by
> telling you to configure heartbeat, but give you no clue on
> how to do this.
> (let's forget right now that Ultramonkey makes no mention of
> IPTABLES, they
> use IPCHAINS). So I go to linux-ha.org. I get the Getting Started
> Guide. It doesn't even mention half of the things brought up in the
> example script given by ultramonkey (namely STONITH), for a
> while, I ignore
> it, and put together a couple of config scrips... they seem
> to work, but I
> have no idea what I have accomplished UM says that heartbeat is
> responsible for serving up the floating IP that would be
> shared by my two
> directors... Is that true? I can't find ANYTHING in the docs
> that talks
> about how to do such a thing!
>
> So... I look into STONITH, I find out this means Shoot The
> Other Node In
> The Head, I find out it is a way to prevent patitioning of a
> cluster -- but
> I can't find ANYTHING on how to use it! So I decide maybe I
> can start with
> ldirectord, but that is run by Heartbeat! That left me with
> trying to
> start with LVS... I knew I had to recompile the kernel, that
> did not scare
> me as I have done this oodles of times. I got the new kernel
> 2.4.17 and
> the newest stable releases of ipvs and the patch. I have successfuly
> compiled my kernel (following the mini-howto) and everything
> looked great
> -- but -- when I try to run ipvsadm it tells me: "could not open the
> /proc/net/ip_masq/vs file -- Are you sure the IP virtual server is
> suppported by the kernel). I read on a news group that that
> may be because
> I didn't have the modules loaded up, so I loaded every module in
> /lib/modules/2.4.17/kernel/net/ipv4/ipvs -- and that didn't
> help (didn't
> think it would but nothing else was!).
>
> I have all the howtos, all of them make an awful lot of
> assumptions, and
> most of them are too terse. I am reading the full LVS howto
> but it referrs
> me to the minihowto before I continue!
>
> This should not be so complicated! To top this all off, I
> have to have
> this done in 2 weeks! A deadline made for me -- not by me.
>
> Can someone please help me at least get started? *Which one
> of this is
> first?* *Why doesn't ipvsadm recognize the new kernel?*
>
> Help!
>
> Thank you so much in advance.
>
>
> Chris
So you haven't gotten ANYTHING working yet? I recommend:
1. Start with just setting up a simple LVS-NAT or -DR or whatever class
you want, with NO HA, heartbeat, STOMITH, etc.
2. You didn't mention your distribution. If it is Red Hat, get the
latest ipvsadm RPM.
3. Perhaps my howto for Red Hat 7.2 would be of any use? See this link:
http://marc.theaimsgroup.com/?l=linux-virtual-server&m=101027363828375&w
=2
HTH,
+---------------------------------------------------
| Dan Browning, Sr. Tech Consultant
| Kavod Technologies, 1498 SE Tech Center Pl Ste 170
| Vancouver, WA 98683 <dan.browning@xxxxxxxxx>
+---------------------------------------------------
Langsam's Laws:
(1) Everything depends.
(2) Nothing is always.
(3) Everything is sometimes.
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