Not To's

Things not to do…

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Raspberry Pi Powered Outdoor Speaker Instability

Raspberry Pi Powered Outdoor Speaker Instability

My Raspberry Pi powering outdoor speakers became unstable and I found out why...

Last Summer I built an airplay enabled outdoor speaker using a Raspberry Pi. It worked pretty well, and it was nice that I could stream music outside using our iOS devices while we spend time outside. Over time I noticed that the Raspberry Pi would freeze after some time of using it, and I would have to reboot it in order to start playing music again. I started with HiFiBerry OS but then tried out Volumio.
Inadvertently Caused the Amcrest Doorbell Video Stream to have a Green Tint when Using an Amcrest NVR

Inadvertently Caused the Amcrest Doorbell Video Stream to have a Green Tint when Using an Amcrest NVR

I managed to make the doorbell video stream look like something from the movie "The Matrix"...

I recently bought the Amcrest video doorbell (affiliate link) since I like my other Amcrest IP cameras, and I wanted a doorbell that was less cloud connected (the Amcrest doorbell requires an online account for the initial configuration but can be used completely offline at the expense of losing push notifications to answer the doorbell). The doorbell has the RTSP capability, so the video stream can be recorded based on motion events and/or 24/7 recording with video surveillance software like BlueIris or hardware such as the Amcrest NVRs (affiliate link).
Inadvertently Opened SSH Remote Access

Inadvertently Opened SSH Remote Access

Be careful when using aliases because you could expose unnecessary services to the world...

In my network, I created an alias for all of the ports I have open on my server so that I can create firewall rules to allow several of my VLANs to access the services hosted on my server. The benefit of creating an alias is that I do not need to create 4 separate firewall rules to open 4 different ports to my server and then repeat this process for each VLAN I need to allow access (yes, you could use floating rules or rule groups depending on the order you need rules to be processed).
Inadvertently Blocked Access to Cable Modem Web Interface

Inadvertently Blocked Access to Cable Modem Web Interface

Want to access your modem's web interface and you are using VLANs or a non-default subnet address?

A few months ago, I switched to using my own cable modem instead of using the ISP provided modem/router, and I wanted to access the web interface for the cable modem status. Another reason was to change the default password if it had one since default passwords are not secure. The default web address for cable modems is typically http://192.168.100.1. Perhaps that is a common default IP address to avoid potential IP address conflicts with standard consumer grade routers which often default to 192.
Enabling Rocket Loader on Cloudflare Interfered with the Nextcloud web login page

Enabling Rocket Loader on Cloudflare Interfered with the Nextcloud web login page

Using Cloudflare to access your Nextcloud web interface? Beware of pitfalls...

When setting up Cloudflare for this website, I decided to try it out on some sites that I had setup on my home network. In particular, my Nextcloud web portal. All was going well until I began enabling various optimization features that are available in the free Cloudflare account. I noticed when accessing the Nextcloud web page from my work computer that it would not allow me to log in. The login button was visible but disabled.