Re: exact iptables command to stop a source from accessing a Linux cluster

[Ian Hayes <cthulhucalling@xxxxxxxxx>]

iptables -A INPUT -s 10.5.5.25 -j DROP

On Thu, Sep 17, 2009 at 7:33 PM, sunhux G <sunhux@xxxxxxxxx> 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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