Category: How-to

ERR_CONNECTION_REFUSED

Website suddenly no longer showing anything?
Might be a DNS cache problem!

How to clear the DNS cache on your computer

This article describes how to clear the DNS cache on your computer.

Many computer operating systems use caching to store DNS lookup results. Normally this is not a problem, and accelerates network performance. However, when you are developing a web site or configuring domain settings, your computer’s DNS cache can get in the way, preventing you from accessing the correct site.

To clear the DNS cache, follow the appropriate procedure below for your computer’s operating system or web browser.

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WordPress Auto Logout

When you click on the “Remember Me” option on the login page of your WordPress website, it will keep you logged in for 2 weeks. If you don’t, it will keep your login active for 2 days. However, you can extend the auto logout period in WordPress by adding a little code snippet. Keep in mind that it will affect site’s security by keeping user logged in for too long.

function keep_me_logged_in_for_1_year($expirein) {
     return 31536000; // one year in seconds
}
add_filter( 'auth_cookie_expiration', 'keep_me_logged_in_for_1_year' );

The above code will keep your authentication cookie for a year.

Have a nice day!

Dartbord Oche distances

The sport originates from the UK, so all measurements are in feet and inches. Let’s convert these correctly.

1 foot = 12 inch, 1 inch = 25,4 mm.

From the floor to the center of the Bull’s Eye:
5 feet. 8 inches = 68 inches = 1727,2 mm

From the front of the dartboard to the Oche / throwing line:
7 feet 9 1/4 inches = 93,25 inches = 2368,55 mm

Most websites will mention 1,73m and 2,37m, but as you can see this is not quite right.
Now, let’s add some math:

As good old Pythagoras says: “a2 + b2 = c2”, so:

5610029,1025 + 2983219,84 = 8593248,9425 and get the square root from this last one gives us:

2931,424387989566 !

So, our bullseye – oche distance should be 293,14 cm long to test the measurement diagonally.

The more you know…
Have a nice day!