[CentOS] Hidden networking device configuration

[Rodrigo Barbosa]

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On Thu, Jan 26, 2006 at 04:15:59PM -0500, Bowie Bailey wrote:
> I am trying to configure load balancing for a couple of CentOS4 servers.
> In order to make it work, I need to add a hidden networking device on
> each server with the virtual IP.  I found the following instructions on
> linuxvirtualserver.org for doing this, but they don't work.
> 
>     echo 1 > /proc/sys/net/ipv4/ip_forward
>     ifconfig dummy0 0.0.0.0 up
>     echo 1 > /proc/sys/net/ipv4/conf/all/hidden
>     echo 1 > /proc/sys/net/ipv4/conf/dummy0/hidden
>     ifconfig dummy0:0 172.26.20.110 up
> 
> When I try to write to /proc/sys/net/ipv4/conf/all/hidden, the system
> refuses to let me create the file.  I'm logged in as root, so why am I
> having permission problems?
> 
> Also, I believe these instructions are for 2.2 or 2.4 kernels.  Have things
> changed with 2.6?

No, things are exactly the same. Meaning that LVS is a separated patch
that is not included either on the stock kernel or the RHEL one.

If you really want to use LVS, you will have to apply the patch.

Best Regards,

- -- 
Rodrigo Barbosa <rodrigob at suespammers.org>
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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