I would suggest moving this to zope@zope.org, which I've cc'd. I would strongly suggest using Squid as an alternative to both Apache and LVS and kill two birds with one stone here, allowing you to get caching and load-balancing a ZEO cluster with one tool. Squid will load-balance a cluster of ZEO clients by talking directly to ZServer on each of those boxes. With Toby Dickenson's ICP patch to Zope, you can have ZServer handle ICP requests, which will allow your ZEO clients to becomre part of the cache hierarchy for Squid. This means that Squid will truly load-balance your ZEO servers, in the same fashion LVS would... Squid replaces Apache, mod_proxy, LVS, and provides caching too! Personally, I'm of the opinion that every production install of Zope needs ZEO, not just for performance, but also for the convenience factor. You absolutely need ZEO, though, if you have high-traffic, and low ability to cache most of it (i.e. lots of dynamic content). Also, if you need SSL, use Squid 2.5 with OpenSSL to accelerate all your backend non-SSL servers, including ZServer, Apache, etc... Oh, and if you need Apache for non-Zope stuff, Squid will proxy that too. Sean -----Original Message----- From: Eric Roby [mailto:Eric.Roby@noaa.gov] Sent: Tuesday, March 05, 2002 6:59 AM To: zope-dev@zope.org Subject: [Zope-dev] Squid Proxy VS LVS+Apache+ZEO I apologize (in advance) if this is on the wrong list but some of the previous discussions regarding these topics have been done here. I have read much of the documentation on Squid, the zope.org cluster configuration, and many of the excellent How-To's out there. However, my particular case requires ssl for authentication to the ZMI. It appears that ssl is best accomplished with Squid, however we have to be able to provide many of the services that the zope.org cluster leverages with LVS. It appears that the Apache+mod_proxy+ZEO configuration provides much of the functionality that Squid+ZServer would provide, alone. I guess my biggest problem is determining whether it makes sense to use Squid in conjunction with ZEO (which we want to pursue) or re-build Apache with mod_ssl in the LVS+Apache+mod_proxy+ZEO setup?? If any one has been down this road I would greatly appreciate any insight that you might have. Thanks in advance... Eric _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )