In this post you will learn how to configure a Raspberry Pi as a wireless hotspot and captive portal for Android devices. Here is the objective: When users connect to the Raspberry Pi with their phones, a notification will pop up asking them to sign into the network. When they tap the notification, a browser… Read More »
Are you building an application that needs to calculate the cycling, walking or driving distance between two addresses? Google offers a handy service called the Google Maps Distance Matrix API that you can use to get this information and present it to your users. The service is free, and you can specify the mode of… Read More »
Do you have a sidebar that contains essential widgets that your visitors must see when they visit your site from a mobile device? Perhaps a search box, product categories, an advertisement, or something else? A lot of WordPress themes display the sidebar below the content on mobile devices, so visitors have to scroll all the… Read More »
Youtube-dl-WebUI is a web interface for the program Youtube-dl, which allows you to download audio and video from streaming sites, and save them to your computer in a variety of formats. Youtube-dl-WebUI is a convenient interface to Youtube-dl but was missing some key features such as previewing the video and selecting the format. The customizations… Read More »
It’s handy to have a test server that we can use to see what will happen when we upgrade WordPress, install new plugins, or mess around with the layout and design of our blog. But how can we copy the changes we make to our test WordPress site to our live server? In this post,… Read More »
Symptom Trying to send mail through mailx, echo “Testing mailx” | mailx -s “Testing 1 2 3” test@example.com yields the following error: /usr/lib/sendmail: No such file or directory “/home/username/dead.letter” 9/261 . . . message not sent. Possible Cause Name of mailx configuration file is set incorrectly. Solution Rename mailx configuration file from /etc/mail.rc to /etc/nail.rc… Read More »
Being an online freelancer opens the possibility of working for employers located all over the world, and that means you could get paid in a lot of different currencies. This post is about converting (at the best possible exchange rate) any foreign currency you’ve earned on Freelancer.com, and getting it into your bank account with… Read More »
Do you want to earn honest income doing what you love to do, while actually providing real value and fulfilling other people’s needs? Wouldn’t it be great to be able to work from the comfort of your own home, or from anywhere in the world? Many of the jobs we do today can be done… Read More »
So you’ve written a fantastic blog post and set the featured image, but all you’re seeing is bland text and a hyperlink when you tweet it. A picture adds a thousand words to your tweet, grabs your audience’s attention, and drives traffic to your website. This is a quick guide that will show you how… Read More »
“Failed to send your message. Please try later or contact the administrator by another method.” Are you seeing the above error when trying to send a message via the Contact Form 7 plugin for WordPress? The Contact Form 7 plugin sends email using a mail server installed on your DigitalOcean server. If no mail server… Read More »