[Linux-cluster] exact iptables command to stop a source from accessing a Linux cluster

[Ian Hayes]

iptables -A INPUT -s 10.5.5.25 -j DROP

On Thu, Sep 17, 2009 at 7:33 PM, sunhux G <sunhux at gmail.com> wrote:

>
>  Hi,
>
> I have a RHEL 5.1  cluster that's constantly being accessed by an
> application from a Windows server application via sqlnet (ie Tcp
> port 1521) which caused a specific Oracle accounts to be locked.
>
> The owner of the Windows box does not know why the Filenet
> application is doing this so while she's doing the research which
> configuration in Filenet needs to be fixed to stop this, we need an
> interim measure to block this Windows server's access to the cluster.
>
> Thus I would like to set up iptables / firewall on this Linux box to
> stop the sqlnet access.  Can someone provide me some example
> commands / syntax ?
>
> Source IP address : 10.5.5.25   (Windows server)
> Tcp port : 1521
> My Linux boxes IP address :  10.5.5.46 / .47
> My Linux cluster virtual addr : 10.5.5.45
>
> In fact I would like to block on all ports on the Linux cluster to stop
> this Windows server from accessing it.  So what's the exact commands
> I should issue on each of the Linux box?  Would iptables also block
> the Windows server from accessing the cluster virtual IP addr?
>
>
> Thanks
> U
>
>
>
>
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