There was a “The ultimate OpenBSD email server” thread on misc@ those days. After “Mailserv”, another response was “iRedMail”. Still interested in the subject, here’s Yet Another Quick Review of the iRedMail 0.8.1 on OpenBSD 5.1.
Quoting its website: iRedMail is a ZERO COST, full-featured, Open Source Email Server Solution released under GPLv2. Woaw… You saw that great fireworks and garland lights… Just kidding. Now, let’s see what you get.
OpenBSD ships with an LDAP daemon since 4.8. I have an all-in-one server from which the LDAP service has to be shipped out. I’m going to replace that OpenLDAP daemon with the LDAP daemon from OpenBSD 5.1. I already wrote about how to enable LDAP on OpenBSD 4.8.
Those will be updated notes for OpenBSD 5.1 and additional directions to allow monitoring the LDAP activity using SNMP and Xymon server.
My actual Mail system is running OpenBSD. I use the good old “put the bits together and rule the configuration files” way. But there are some times when I fell like a Web GUI would be nice. I never liked solutions like Zimbra or Zarafa so much because they were quite restrictive bundles – it terms of which backend could be use. But that’s what they’re selled for: bundles.
Let’s have a look at what mailserv does and how.
I’ve just upgraded my OpenBSD’s Xymon server from 4.3.9 to 4.3.10. It was so simple that it deserved a simple note to:
- confirm you don’t need the “
--rrdlib” parameter to configure xymon-server with RRDtool support on OpenBSD (5.1) anymore;
- applause for “
gmake install” to be keeping the initial (modified) configuration files untouched.
I’ve been using various monitoring software for a long time now. I always use two kinds of monitoring tools: service checkers, like Nagios, Monit… and metrics graphers, like RRDtool, Cacti, Munin, … I like the Xymon software, AKA Hobbit Monitor, because it can achieve both, uses very low resources and can be customized quite easily.
I used to run it on a FreeBSD virtual machine with ZFS activated. The idea was to compress and deduplicate the RRD data. But in fact, the RRD files weight less than 100MB and ZFS is of no use here. Plus, it seems my 3 virtual disks configuration makes the system lagging a lot ; or is it just the FreeBSD implementation. Anyway, that machine keeps sending timeouts and I can get why. Plus, comparing performance of both VMs, FreeBSD and VMware tools doesn’t seem to use less of my ESXi resources. So it’s time to replace it by some OS that never fails me: OpenBSD.