Re: Simulating network hang
- From: "Jared Still" <jkstill@xxxxxxxxx>
- To: "Elliott, Patrick" <patrick.elliott@xxxxxxxxxxxxx>
- Date: Tue, 18 Nov 2008 14:17:57 -0800
So it appears there is a buffet of methods for doing this. :)
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
On Tue, Nov 18, 2008 at 1:43 PM, Elliott, Patrick <
patrick.elliott@xxxxxxxxxxxxx> wrote:
> 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.
>
>
> Pat
>
>
> ------------------------------
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Jared Still
> *Sent:* Tuesday, November 18, 2008 2:32 PM
> *To:* cshapi@xxxxxxxxx
> *Cc:* oracle-l@xxxxxxxxxxxxx
> *Subject:* Re: Simulating network hang
>
> On Tue, Nov 18, 2008 at 10:52 AM, Chen Shapira <cshapi@xxxxxxxxx> 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.
>
> Jared
>
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