by erwi » Wed, 14 May 2008 23:19:14
by goarill » Thu, 15 May 2008 05:50:21
by erwi » Thu, 15 May 2008 15:54:48
> put a box up in between the host and the rest of the network
by Pascal Hambour » Fri, 16 May 2008 01:00:18
erwin a crit :
At worst if it's not loopback traffic you can use the MARK target withQuote:> To test an Application that communicates over UDP Multicast I would
> like to filter out some packets using iptables. However, when I
> specify a rule to DROP the packets on send, the application gets an
> "Operation not permitted" error. What I would like to achieve is that
> the packet gets silently dropped, without the application on the local
> machine getting an immediate error.
1. How to use IPTABLES to simulate major network outages for testing purposes?
Greetings all,
I work with a large distributed system that makes heavy use of TCP/IP.
For example, from a command system we could expect around 900 TCP/IP
connections to remote nodes.
I would like to simulate all of those 900 TCP/IP connections dropping
at the same time. I.e., I would like RST packets to be sent to the
command system at the same time.
It has been suggested to just pull the cables to this command system
but I don't think that will suffice. The command system is a NT 4.0
box, and I believe the connections would require keep-alive timeouts
to occur before dropping. I'm more interested in a major network
event occurring.
So, I've placed a Linux firewall running Red Hat 8 in between the
command system and the rest of the world. My next step is to figure
out a way to use that system to drop all the connections for me.
Thanks all!
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