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тАО09-08-2002 07:06 AM
тАО09-08-2002 07:06 AM
Just wanna know what's the exact meaning for the entry in the /etc/hosts file of the loopback port. How does HP/UX 11 or above handle this loopback port? Does it require all process to explicitly specify the loopback for the connection; like Sybase, do I need to specify the loopback entry in the interface file? Will processes be able to just route all network packets through the TCP stack without going through the network card (i.e. "outside" and back)? Thx.
Gordon
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тАО09-08-2002 11:08 AM
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тАО09-08-2002 05:49 PM
тАО09-08-2002 05:49 PM
Re: /etc/hosts Loopback entry Question
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тАО09-08-2002 06:00 PM
тАО09-08-2002 06:00 PM
Re: /etc/hosts Loopback entry Question
localhost or loopback - both the same
live free or die
harry
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тАО09-09-2002 07:30 AM
тАО09-09-2002 07:30 AM
Re: /etc/hosts Loopback entry Question
Gordon,
The loopback is an internal address that uses the TCP stack, but no network card.
This is useful for things like an app talking to a database on the same machine.
For example I have a machine running apache and the sites use a MySql database on the same machine. So the web apps point to localhost as the server and talk to the database through that connection.
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тАО09-09-2002 08:08 AM
тАО09-09-2002 08:08 AM
Re: /etc/hosts Loopback entry Question
Thx for your info, yeah, u are right, the reason I ask this Q is because my Sybase collegues think that this entry can improve the server performance by using localhost instead of real hostname in the Sybase interface file. Just wanna know from yr experience, is that true for app. gain benefit on this entry. Also how to monitor if change this setting is successful or not? Finally where should I put this entry in the /etc/hosts. Any order? Put it into 1st line? Thx
Gordon