Linux is great for many different things (just not for desktop computing :/) but you have to get pretty deep into the weeds to leverage its full power.
Here are a few of my recipes…
The above is my first boot up of my Raspberry Pi 3, as purchased in January 2017. I am writing this because so much of the information you can find on Google about the Raspberry Pi is actually outdated with regards to what you get when you order one in…...
Sometimes you need an emergency reminder about how to find all files of a certain name in a directory structure… like say: find all .htaccess files hidden in my web site. Well, here’s the magic command:...
If you have several servers to maintain like I do, at some point you'll want to know how old exactly an installation of Debian (or another flavor or Linux) has gotten since you last wiped it clean... So how do you check the install date? I found t…...
If you have an apache (2) web server, you probably have an access.log file showing you all kinds of data using the "combined" log format. Let's see how to include processing time into that log file. By default a line in the combined log looks like this…...
Lately, my Debian servers have been bugging me with stuff like this everytime I tried to apt-get update:W: There are no public key available for the following key IDs:XYZ123W: You may want to run apt-get update to correct these problems...
So it turns out that what is filling up my root partition is my MySQL binary logs.A collection of fat files in /var/log/mysql ...So I had several options: Move the logs to a different partition Increase the size of the root partition D…...
Oh my... nothing puts a server down on its knees more than a root partition with 0% free space. Oh well, ok, maybe being dugg beats it. But still, when you have a full partition, you're in trouble... First thing is to find what is using that much spac…...
Welcome back to the daily emailing setup on Debian... The default private key for the courier IMAP server is for localhost, whiwh will issue warnings in the mail client. To generate a new (self signed) private key, you need to do this: rm…...
Installing the mailman package on Debian is easy... but at some point, you gotta run into exim4 configuration again! Fact is exim4 does not by default and strongly discourages using piping to programs in /etc/aliases... which unfortunately is the way…...
Another late night trying to configure that Debian exim4 thingy... I want to send email from Thunderbird using my Debian box as an SMTP relay. The mailserver (exim4) will refuse to relay anything to an external domain if you're not properly…...