Month: September 2016

Bash History without line numbers

The history command is a command that I use daily. It can be used to list Bash’s log of the commands that you have typed. The results of that command include line numbers. Every now and again, it would be nice to execute history to retrieve a list without line numbers. This would greatly simplify the creation of script. it…

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Icinga 2 won’t start after an upgrade

A CentOS 7 server running Icinga 2 was recently updated using yum update killed the service. The service simply did not restart. The reason turned out to be quite simple. The resolution is just as simple. According to the Icinga docs, upgrading Icinga 2 is usually quite straightforward. Ordinarily the only manual steps involved are scheme updates for the IDO…

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Change Forgotten MariaDB Root Password

This article details how to reset a forgotten MariaDB root password. I am not shedding any new light to this, this is here for a quick reference for me.  The source of this excellent article is at the bottom of the page. Stop the service and start MariaDB in safe mode. There may be a slight hang, just type mysql…

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A Kernel Panic and Resolution

While performing yum updates on CentOS 7 minimal install virtual servers, I came across a problem server.  The server needed a reboot after performing a hardware change.  It did not come back up. It had a Kernel Panic error.  I did so many things to that server, I didn’t know what the cause for the panic was, but fortunately I…

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A Windows 10 Upgrade Experience

After the much advertised Microsoft deadline of July 29, 2016 for the FREE Windows 10 upgrade had passed, it turns out that there is an extension for Windows 10 free upgrade for customers who use assistive technologies. This upgrade path is still valid as of September 22, 2016, so I thought I would upgrade a Dell i3 laptop from Windows…

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