Slack has a Windows/macOS compatible feature that allows the use of a file called Signin.slacktoken helping the users be redirected to the right workspace to sign in.
If you use Google Drive on Mac OS (formerly named Drive File Stream), you might be having a hard time finding documents and folders in Spotlight. It is quite an easy problem to solve.
You want to update the BIOS of a PCEngines APU2 box from Pfsense? It is rather easy.

Your UniFi Controller is being stubborn and refuses to adopt an access point from Ubiquiti or a switch ? Or doesnt even display it?
You have of course checked the logs and ran the “info” command on the end device and you’re getting either Server Reject or Pending Adoption?
Linux: Delete empty directories

You have loads of empty directories to delete in Linux? There is a command for that!

Default password for EpsonNet Config
You’ve just set up a kitchen printer or receipt printer from Epson, have to access the admin panel to adjust some settings? The EpsonNet Config utility sometimes requires a password.
Run Speedtests from a PfSense router

If you need to check quickly how well the Internet connection of one of your pfSense routers is doing , why not use Speedtest ? And this just requires installing a small package on the machine.
List of IPs and networks for Youtube
If you need to apply QoS rules to trafic coming or going to Youtube, the best thing to do is to have the list of IPs of their network.
PfSense and Intel fiber card
If you use or plan to use a fiber network card such as the Intel E10G42BTDA – Intel X520-DA2 with a PfSense firewall (such as our SolidRouters), you need to adjust the /boot/loader.conf.local file with informations such as :
vm.kmem_size="435544320"
vm.kmem_size_max="535544320"
kern.ipc.nmbclusters="1000000"
kern.ipc.nmbjumbop="524288"
hw.igb.fc_setting=0
hw.ixgbe.num_queues="4"
Values are to be adjusted according to your setup. The last line is relate to quad ethernet network cards from Intel.