Karl Ahlers

My name is Karl Ahlers and I like to blog about technology such as Linux, Windows, and Cisco
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Watchertower Container Setup

By Karl | January 8, 2022 - 10:59 pm |January 9, 2022 Docker, Linux
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In my Homelab stack, I’ve completely Dockerized a lot of my infrastructure services: Sonarr, Radarr, Jackett, Nextcloud, Redis, MariaDB, MySQL, and a lot more! I made sure to get a very good understanding of how to manually remove containers, remove images, add macvlans, and even inspect the network elements all… Continue reading →

Tagged Docker, Linux

The Homelab

By Karl | December 18, 2021 - 7:04 pm |January 9, 2022 Cisco, Hardware, Homelab
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The Homelab

The main reason I have a Homelab is the simple fact I need it for my network and by that I mean I don’t like running consumer/prosumer routers. For this reason I virtualized my router/firewall using pfsense so I can easily create snapshots of the VM in the event that… Continue reading →

Tagged Cisco, Hardware, Homelab, Network

mysqldump script again

By Karl | May 31, 2021 - 4:34 pm |January 9, 2022 Bash, Linode, Linux
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I decided to look back at my mysqldump script and thought it would be better to improve upon the whole process. Important notes: Mysqldump looks at a file that’s chmod 600 for credentials to do the backups and email for the failure of backups needs to be done.

Tagged Linux, mysqldump

How to generate a CSR for SSL

By Karl | November 29, 2020 - 9:29 pm |January 31, 2021 SSL
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I recently purchased a Wildcard SSL certificate because of Black Friday reasons and the cost wasn’t bad for a year >$28/year so I pulled the trigger because I wanted the experience and I was already using Let’s Encrypt which isn’t bad either. Let’s get to it! You will need to… Continue reading →

Using Vagrant and Linode to create a VPS in minutes

By Karl | April 16, 2017 - 1:48 pm |April 17, 2017 Linode, Linux, Vagrant
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Automation is now becoming more popular and given a standard in some places. The best place to start learning is by using Vagrant and Linode a Virtual Private Server(VPS) that will host our content. Our goal in this project will be to use Vagrant to provision an image of Ubuntu… Continue reading →

Tagged Linode, Linux, Vagrant, VPS

Updates again

By Karl | April 14, 2017 - 11:29 pm |April 14, 2017 Uncategorized
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It’s been almost 4 years since I’ve posted anything around here and during those 4 years I’ve learned a lot and it’s about time to start documenting  them.

Boot the Playstation 3 into safe mode

By Karl | June 19, 2013 - 5:18 pm |June 19, 2013 Playstation 3
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What some people don’t know how to do til it’s to late is how to boot the Playstation 3 into safe mode, they already bricked their Playstation 3 and start to panic and worry since the device is out of warranty. It seems that the the Playstation 3 firmware version… Continue reading →

Tagged Firmware 4.45, PS3, Unbrick PS3

Using Minicom to access Cisco Router

By Karl | June 6, 2013 - 6:42 pm |June 6, 2013 Cisco
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One of the things I don’t get to use alot is a Windows based Terminal. I remember the days when you Hyperterminal use to be apart of the Windows Operating System and you can access the console of Cisco equipment. Today I will be using Minicom to access Cisco Router…. Continue reading →

Updates!

By Karl | May 26, 2013 - 7:02 pm |May 26, 2013 Uncategorized
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A new refresh look of the website and also new content will be added to reflect more on the networking aspect and adding in Cisco related posts.

Tagged Cisco, Refresh

Trixbox Password

By Karl | October 19, 2012 - 10:29 am |October 19, 2012 Linux
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It has been awhile since I updated my site but I’ve started another new job and have been here 4 months and I love it here! One of the many things I get to work with is Trixbox a software PBX based off of Asterisk. I know my way around… Continue reading →

Tagged Asterisk, PBX, Trixbox
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