Re: Load balancing appliances...

This is a cryptographically signed message in MIME format.

--------------ms010002070904050302050203
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Check out Linux Virtual Server (LVS). It does the same thing the big 
guys do for free. I have researched it in the past and was very 
impressed with its architecture: support for a backup load balancer, 
very configurable traffic routing (NAT, tunneling, or direct routing) 
and support for sticky traffic.
Disclaimer: I have not put an implementation into production, but 
according to a Linux Magazine article dated 15 SEP 2003 
(http://www.linux-mag.com/2003-11/clusters_01.html), "LVS is already in 
use in some of the highest-trafficked sites on the Web."
The project has been around at least since the RedHat 6.x days (which is 
what I implemented it on as a front end for NAS) so it should be pretty 
stable.

http://www.linuxvirtualserver.org/



Joe R. Lindsay wrote:

> Back at what seems soo long ago, I successfully
> used Cisco LocalDirectors back when they first came 
> out.  I moved away from needed them just as I was 
> going to evaluate the switch based replacements from
> Cisco, Foundry and Extreme...
> 
> Now I need to address the same problem, and would like
> to throw in SSL termination while I am at it...
> 
> Any good experience or advice out there to share?  My goto
> buddy for this is using F5, but suggested I look at NetScaler,
> another friend of mine wrote a book on Cisco content switching...
> So I have 3 vendors I have to look at, but don't have much
> real world commentary...who out there has that??
> 
> Besides all that, I hope everyone has a great weekend...Joe
> 
> ..................................................
> Joe Lindsay
> Mail: [email protected]
>  ..................................................
> 

--------------ms010002070904050302050203
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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==
--------------ms010002070904050302050203--