6 Tips for a Smooth Zimbra Server Install

By | May 27, 2009
It may sound odd offering more Zimbra installation advice since there is a lot on the subject in other blogs, our documents, wiki and Forums. In fact, some quick research surfaced over 1.4 million hits for Zimbra server install on the web and 36,000 on the Zimbra site alone. But we are also fortunate to have more new Zimbra users than ever, and after helping some trial customers recently, it was a good reminder a few simple tips can help cut through some noise and avoid time-consuming snags once you start the install process. So without further ado here are the top 6 common pre-requisites to consider when preparing for your Zimbra installation: 1. Firewall Servers have firewalls configured once the operating systems are installed for security purposes. Our recommendation is to temporarily disable the firewall on the system during a single and multi-server Zimbra installation.… Read more »

ZCS-to-ZCS Migrations

By | September 30, 2008
Someone in the forums recently asked about ways to migrate individual accounts from one ZCS instance to another, so thought I'd share the enlightenment with all. Whether you are going from an on-premise install to a hosting provider, want to create handy archives of old employee accounts, or just need to duplicate mailbox contents of a user; the syntax in this article proves remarkably useful, and applies to all editions. There are a multitude of comparable RFE's on addressing this need via different approaches. (Bugzilla entries 19630, 29573, 28443 & 30163 to name a few.) Some want graphical tools to browse data and selectively migrate certain things, while others would be happy with a cross LDAP zmmailboxmove. Depending on your situation, several backup tools can take care of a large portion of your daily needs; and there are ways to do Zimbra-to-Zimbra migrations using the Network Edition's backup and restore capabilities - however they require admin abilities on both systems.… Read more »

Admin Tools & Tidbits – Part 2

By | September 2, 2008
Part 1 covered Network Edition backup features, today's snips apply to all editions. First among the lesser known additions: We recently provided the possibility for a nice performance boost to some environments by adding the ability to turn on batched indexing in ZCS 5.0.3 (you can even fine tune it at the localconfig, COS, and account level). We're not talking about when you re-index an entire account here, this is a change to the index-as-received model; now new items can sit in a 'queue' (really a 'indexing deferred' flag on the mail_items table of the pertaining mboxgroup database in MySQL) to run all at once when it reaches the zimbraBatchedIndexingSize threshold, saving you from all the tiny disk thrashing. It might not be immediately apparent that this works better, but you can mention it in the forums and we'll show you the evidence to the contrary - it proves expecially useful for POP heavy or ZAD archive accounts.… Read more »

Recent Admin Backup Tidbits – Part 1

By | August 14, 2008
Continuing our earlier advice to take backups frequently, and secure them offsite - thought we'd highlight a few recent administrator related things added to ZCS that you might not have noticed.  Network Edition Backup Enhancements   Speaking of backups, there are some new ways to take them in ZCS 5.0.x. With ever larger quota usage, full backups can often take a while to run, and even incrementals which process the redologs may still be one heck of a job when you're talking thousands or millions of accounts. Having trouble completing that entire full backup during off-hours?… Read more »

The Most Important Post Ever

By | July 30, 2008
This may be the most important post you will ever read. If you're a Zimbra Administrator, please read, and pass this onto your colleagues who use Zimbra. If you're a CTO or CEO, take time to ask your Zimbra Admin about the subject of this post. This blog post is about backups.Whether your an Open Source User, Zimbra Desktop User, or Network Edition Customer, you can do backups of your data. There is nothing worse than getting a call from a customer, or a Private Message from a Forum User that says, "I need help. My HD has crashed, and all my backups were on that drive."Let me Digress for a moment, and share with you my personal experience with backups.… Read more »

Default Mail Applications (mailto reprised)

By | November 28, 2007
We've had some great responses to my blog post yesterday about changing the default mailto links using Firefox. There's a couple of problems with my method: 1) It's not really scalable for an admin [ie no auto install] 2) Not really applicable for Safari and Internet Explorer. (more…)… Read more »