Technology
This article is about monitoring NetBSD with Munin, using munin-node. I already configured a running munin-server on OpenBSD ; so I could simply use it to graph my NetBSD metrics. Here’s, we’ll go through installing both node and server on NetBSD.
ATTOW, pkgsrc provides Munin v1.3.x. So I’m gonna build munin-node from pkgsrc-wip. Once this is done, proceed to installation and configuration on the node to be monitored:Continue reading...
When you host a secondary MX server and the primary SMTP is out of order for more than 5 days, you will start to loose e-mail from the MX backup. There is a (temporary) easy way to deal with this: raise the retention time of the Postfix mail queue.
Edit postfix/main.cf, add
maximal_queue_lifetime = 30d and reload Postfix. You’re done!
Keep an eye on the mail queue while the primary MX is down. Just to be sure not to have the secondary explode…Continue reading...
At the time of writing, Munin on OpenBSD doesn’t come with a dovecot dedicated plugin. I’m not sure it even comes with an IMAP plugin. Anyway, you can get one from the “Munin plugin repository” and run it on your BSD box.
Here’s how:Continue reading...
You may have already seen my Running Monit v5 on OpenBSD article. If not, it’s the correct time to have a look at it :)
This article will describe how to install and run M/Monit. Quoting its Web site, “M/Monit expand upon Monit’s capabilities to provide monitoring and management of all Monit enabled hosts from one easy to use web-interface”. Monit has an efficient Web interface, M/Monit has a shinning one. It also has reports abilities that will please your IT CEO ;-)
I’ll show how to run both on a single OpenBSD box.Continue reading...
I’m keeping an eye on the temperature of my Dell Inspiron Mini 1012. And since it is powered-on again, according to Munin and the cpu0_temp0 / cpu1_temp0 counters, it runs at an average temperature of 59°C. This is quite a bit hot ; especially when I now it is supposed to have a TDP of 5.5 W and that the XPS M1330 is about 45°C.
The Mini is fanless! This is why I bought it and also probably the reason why it is that hot stored in a shoes cupboard with no air flow. So, I’m gonna give him some air turning an unused internal PC Fan into a brand new USB Powered Fan.Continue reading...