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Re: lvs and PCAnywhere

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: lvs and PCAnywhere
Cc: Tim Cronin <tim@xxxxxxxxxxxxxxx>
From: Roberto Nibali <ratz@xxxxxx>
Date: Mon, 04 Nov 2002 14:52:26 +0100
Tim Cronin wrote:
I'm currently using iptables to do nat for PCAnywhere.
It uses 2 ports for it's communication.

IIRC it was:

tcp port 5631 bidirectional
udp port 5632 bidirectional

Another one of those funny protocols.

Is it possible to have lvs handle this type of service?

I remember that you could set a flag in the registry in order to have PCAnywhere binding only on 5631 and using TCP only. It was something along the lines of:

HKEY_LOCAL_MACHINE/SOFTWARE/Symantec/pcAnywhere/CurrentVersion/System/TCPIPConnectIfUnknown

You might need to add this key and then set it to 1. If you've done this load balancing should be a piece of cake. If not you need fwmark and persistency. There is no other way to achieve it currently.

I was figuring that it's like active ftp and since that has
a special module I may be out of luck...

ftp is also a funny protocol but at least it tries to stay in the same protocol family ;).

Other "braindead" software going into this direction: some streaming and backup software.

Best regards,
Roberto Nibali, ratz
--
echo '[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq' | dc



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