Loadbalancer's don't necessarily have to have anything to do with x2go or NX for that matter although they can implement their own technique.<br><br>There are several good articles out there on the topic including <a href="http://1wt.eu/articles/2006_lb/" target="_blank">this one</a>.<br>
<br>Here is <a href="http://haproxy.1wt.eu/" target="_blank">one implementation</a> you could also use.<br><br>And here is a HowToForge article on setting up an <a href="http://www.howtoforge.com/high_availability_loadbalanced_apache_cluster" target="_blank">Apache Web Server load balancer</a><br>
<br>If you use some of the "cloud" services setting up a load balancer is often very simple.<br><br>On the Amazon Web Services (AWS) Cloud (ec2) you just start your "instance" that is the application(s) you want to use and more or less a single click/command adds your new server to an <a href="http://aws.amazon.com/elasticloadbalancing/" target="_blank">EC2 loadbalance</a>r that you then can specify criteria for. AWS has made it ridiculously simple.<br>
<br>Matter of fact, AWS EC2 just implemented a new "service" which can track which instance (re virtual machine) a session belonged to and IF the session terminates abnormally, you can restart it and between the Load Balancer and AWS EC2 it will reattach it to the original instance/machine. Read about it hear on How to setup a <a href="http://www.shlomoswidler.com/2010/04/elastic-load-balancing-with-sticky-sessions.html">Load Balancer with Sticky Sessions</a>. Jeff Barr is the author and works for AWS.<br>
<br>Brian Mullan<br><br><br><br><div class="gmail_quote">On Mon, May 24, 2010 at 6:00 AM, <span dir="ltr"><<a href="mailto:x2go-dev-request@lists.berlios.de" target="_blank">x2go-dev-request@lists.berlios.de</a>></span> wrote:<br>
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Today's Topics:<br>
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1. x2go servers with load balancing (michel)<br>
2. Re: Does X2GO have support for scanning using a client-side<br>
scanner? (rupi)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Sun, 23 May 2010 13:59:12 +0200<br>
From: michel <<a href="mailto:kamerun@immerda.ch" target="_blank">kamerun@immerda.ch</a>><br>
To: <a href="mailto:x2go-dev@lists.berlios.de" target="_blank">x2go-dev@lists.berlios.de</a>, <a href="mailto:kamerun@immerda.ch" target="_blank">kamerun@immerda.ch</a><br>
Subject: [X2go-dev] x2go servers with load balancing<br>
Message-ID: <<a href="mailto:4BF91890.5070800@immerda.ch" target="_blank">4BF91890.5070800@immerda.ch</a>><br>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed<br>
<br>
hello,<br>
<br>
i use x2go with ubuntu and it works good, now i would like to install 2<br>
x2go lenny servers woth load-balancing. i don't use ldap, is it like<br>
this that we must just install 2 machines with the same configuration<br>
it means we have 2 dhcp server with the same ip or we must configure<br>
somewhere something to have load balancing? i try to find out in the<br>
documentation, but i did not found.<br>
<br>
michel<br>
<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Sun, 23 May 2010 15:31:34 +0200<br>
From: rupi <<a href="mailto:rupi@rantanplan.org" target="_blank">rupi@rantanplan.org</a>><br>
To: <a href="mailto:x2go-dev@lists.berlios.de" target="_blank">x2go-dev@lists.berlios.de</a><br>
Subject: Re: [X2go-dev] Does X2GO have support for scanning using a<br>
client-side scanner?<br>
Message-ID: <<a href="mailto:20100523133134.GE19269@rantanplan.org" target="_blank">20100523133134.GE19269@rantanplan.org</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
Hi,<br>
<br>
after a quick look in the saned documentation[1] i think setting up saned<br>
on the clients and usinging sane with the sane-net backend shouldn't be that<br>
hard (though it requires a trusted network environment because there is no<br>
authentication/authorization besides tcp wrapper support..). You may want<br>
to tweak the users environment to set SANE_NET_HOSTS to her/his client pc.<br>
<br>
Including tunneling support over ssh in x2go for saned is probably a tricky<br>
thing since sane uses a different tcp connection or control and data plus<br>
it resolves the port exclusivly over services.<br>
<br>
But saned on the clients should ease the process for your users.<br>
<br>
/rupi<br>
<br>
1: <a href="http://www.sane-project.org/docs.html" target="_blank">http://www.sane-project.org/docs.html</a><br>
<br>
--<br>
<a href="http://rantanplan.org/%7Erupi/" target="_blank">http://rantanplan.org/~rupi/</a> || encrypt email || use free software<br>
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</blockquote></div><br>