Several instances using same port question

Good Morning,
I am going to have to create several instances on one box using solaris 10 zone technology. Each zone haveing it's own instance. I need to confirm whether or not that all those instances can use one listerner or does each instance need it's own separate port such as 1521, 1522 etc. for it's listener.
Your opinion and recommendation on this matter will be much appreciated.
regards,
al

<br>> Good Morning,
<br>>
<br>> I am going to have to create several instances on one
<br>> box using solaris 10 zone technology. Each zone
<br>> haveing it's own instance. I need to confirm
<br>> whether or not that all those instances can use one
<br>> listerner or does each instance need it's own
<br>> separate port such as 1521, 1522 etc. for it's
<br>> listener.
<br>>
<br>> Your opinion and recommendation on this matter will
<br>> be much appreciated.
<br>>
<br>> regards,
<br>>
<br>> al
<br>
<br>Hi,
<br>
<br>As you are going to be using Solaris Zones would you really want to have one listener for all of the instances?
<br>
<br>Surely the point of using Zones is separation of the environments so why would you want to try and break that by not having separate listeners? If you aren't interested in isolating the environments then Zones seems like an added headache you can do without.
<br>
<br>On the question of ports... each Zone is going to have its own IP address so it really doesn't matter what port you choose. They could all have the same port for their individual listeners or they could all have different ports. Makes no odds really.
<br>
<br>Hope that helps.

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