Useful tips for everyday
What are the rules for the iptables firewall? The above rule is a little trickier than others because we already have a rule that accepts…
How do you perform a cost benefit analysis for change? How to do a cost-benefit analysis Step 1: Understand the cost of maintaining the status…
How do I use my SD card as storage instead of internal storage? To turn a “portable” SD card into internal storage, select the device…
Is YubiKey a HSM? This is why today we’ve not only launched the YubiKey 5 FIPS Series but also the smallest FIPS-validated hardware security module…
Do override methods have the same signature? If we use overriding, then the overriding method should have the same signature as the overridden method. You…
How to get last record in each group in MySQL? Here are the steps to get last record in each group in MySQL. Let’s say…
How to redirect sound ( microphone ) via SSH? Just pipe the output of arecord (the alsarecorder) to ffmpeg: In my case I see card0…
How do you straighten a bent plank? Steps Wrap the wood in moistened towels. Moisten one or two large towels and wrap them around the…
How do I create a custom projection file? Click OK in the Browse for a Coordinate System dialog box. Click OK again on the New…
How to use PlantUML in Emacs? To render the PlantUML diagram within Emacs, you can hit M-x plantuml-preview . This will run PlantUML and display…