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Re: 2.2.19 kernel and masquerading question

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx, Julian Anastasov <ja@xxxxxx>
Subject: Re: 2.2.19 kernel and masquerading question
Cc: Peter Mueller <pmueller@xxxxxxxxxxxx>, Wayne <wayne@xxxxxxxxxxxxxxx>
From: Joseph Mack <mack.joseph@xxxxxxx>
Date: Fri, 02 Nov 2001 07:27:40 -0500
A couple of points I don't understand. Can someone straighten 
me out please?

o you sometime need to increase the port range on LVS-NAT directors?
realservers? why do you need more ports? There aren't any clients
running on the realservers that need to be masqueraded out. Is
it for the director connecting to realservers in LVS-NAT?

o when you increase the port range, you need more memory. Is this
only because you can have more connections and hence will need
a bigger ipvsadm table?

o ipvs doesn't check something about port ranges and collisions
can occur with regular services (ftp was mentioned). I would have
thought that a process needing to open a IP connnection would
ask the tcp code in the kernel for a connection and let that code
handle the assignment of the port. What am I missing here?
X-window connections are at 6000.. Will you be able to start
an X-session if these ports are in use?

thanks Joe

-- 
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center, 
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA


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