RE: Simulating network hang

From: Elliott, Patrick <>
Date: Tue, 18 Nov 2008 15:43:35 -0600
Message-ID: <>

You could configure the /etc/inetd.conf and /etc/services file to run a script that sleeps for an hour also on the port that you want to time out.


From: [] On Behalf Of Jared Still Sent: Tuesday, November 18, 2008 2:32 PM To:
Subject: Re: Simulating network hang

On Tue, Nov 18, 2008 at 10:52 AM, Chen Shapira <<>> wrote: Hi Oracle-L,

I'm trying to simulate a situation (for testing) where any attempt to make tcp connection to a machine hangs.
For example, connections using ssh or sqlplus hangs. No error message (as seen when ssh server or listenere are down), just no reply.

Any advice on how to create this state on purpose? The OS is Linux RH3 and RH4.

Temporarily add an entry to the hosts file on your test client, misdirecting to a non-existent IP address.

This may or may not work, depending on where your client first looks to resolve IP addresses. Generally the hosts file comes first.


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Received on Tue Nov 18 2008 - 15:43:35 CST

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