Useful tips for everyday
What is a hold up time? Hold-up time is the length of time a power supply can operate in regulation after failure of the AC…
What font is Gothic writing? Textualis, also known as textura or Gothic bookhand, was the most calligraphic form of blackletter, and today is the form…
How to create an audit2allow policy for SELinux? From the audit2allow(1) manual page: ” audit2allow – generate SELinux policy allow rules from logs of denied…
Can you do an average of percentages? Calculate the percentage average To find the average percentage of the two percentages in this example, you need…
Can a virtual machine have more RAM than host? Because of the memory management techniques the ESXi host uses, your virtual machines can use more…
Is encrypt-then-MAC secure? Of these three, only Encrypt-then-MAC is provably secure, in the sense of guaranteeing INT-CTXT (integrity of ciphertexts — it’s unfeasible for an…
How do I calculate a percentage from a total? To determine totals from a percent in the future, multiply the given percentage value by 100…
How are proportional hazards used in discrete time? We discuss briefly two extensions of the proportional hazards model to discrete time, starting with a definition…
Are Christmas song copyright free? A good many Christmas and holiday songs (like “Deck the Halls“) are public domain, but many of the more popular…
How do I export Twitter data to Excel? Simply type, or paste the Twitter URLs you want to find the data for starting in cell…