Paul Skinner

The never-ending quest to put a bullet in the Microsoft Exchange server has just chambered another live-round in the form something called Zimbra. To be fair, the Exchange server I manage is very stable, and runs great. I just loath the price of licenses and dread the obscure solutions to seemingly easy tasks.

I don’t know where this product has been hiding, but it caught my eye last week as a result of a Stumble! click. It seems Yahoo! has spent some coin and bought out Zimbra but is continuing to offer the code and binaries under a variety of licensing models. This is all good news for IT departments and service providers everywhere!

There are a number of How-To documents on the Internet that describe implementing various services to support an Exchange’esque environment. I’ve tried it, it works, but it’s ugly and a devil to maintain. Zimbra provides all the necessary technologies in one suite and centralizes the configuration in a uniform interface. The clever folks at Zimbra did it RIGHT. Both the authentication and directory Services are user configurable and 3rd party supported. This means that Zimbra can leverage your existing directory systems such as Active Directory or any other LDAP server for that matter.

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One of my first blog posts, PHP Installation: A myriad of options asserted that Windows and PHP 4 in ISAPI mode was a frustrating affair. I hereby offer a partial retraction in this regard as PHP 5 is MUCH different.

The folks at PHP recently announced the retirement of the 4.x version slated for December 2007. After which PHP 4 will continue to receive critical updates until August 2008. If you still run PHP 4, now is the time to starting thinking about getting everything up to version 5.

With that in mind, we’ve decided to upgrade all our development environments to PHP 5. Our standard development machines aren’t really all that fancy; 2 year old Dell P4 H/T based desktops running XP. Being a small group of developers, we’re liberal with the choice of IDE; some use PHPEdit, while I’m drawn between Zend IDE and Eclipse.

Our previous run-ins with PHP4 in ISAPI mode were not good. While PHP would usually run to some extent, we were often faced with segfault error message at the top of the output and often IIS would space out. Yes, we’d followed the lengthy install read-me on the site and still could not get PHP and IIS to play nicely. We pretty much gave up on PHP in ISAPI under IIS and settled with PHP in CGI mode for development purposes.

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