Motivation Paid-per-time cloud services. I don’t want to forget one of those running, just to get a fat bill at the end of the month. And if the intended use is short sessions anyhow, make sure that the machine shuts down by itself after a given amount of time. Just make sure that a shutdown [...]
I’m not an AC guy. Not at all. But I do own an Tadiran Wave INV 40/3 installed 2016, and then I had some issues with it. In hindsight, there was some real kind of problem a few years ago, and the rest of the problems were because the AC guy that came to fix [...]
This is the weirdest thing. With an Apache 2.4.10 on Linux Debian 8 (yes, old), and a relatively simple mod_rewrite rule in .htaccess going RewriteCond %{HTTP_HOST} !^www\. [NC] RewriteRule (.*) https://www.mysite.com/$1 [R=301,L,NE] This is really nothing special. Just pushing users to the www host name, if they were lazy typing it. This works almost perfectly, [...]
But why? Cronjobs typically consists of a single utility which we’re pretty confident about. Even if it takes quite some time to complete (updatedb, for example), there’s always a simple story, a single task to complete with a known beginning and end. If the task involves a shell script that calls a few utilities, that [...]
It’s often desired to know how much wall clock time the SQL queries take. As with Perl, there’s more than one way to do it. This is a simple way, which involves overriding DBI’s execute() method, so it measures the time and issues a warn() with basic caller info and the time in milliseconds. The [...]