MacOS Docker Installation problems?

If after a docker installation on your mac you are getting something like:

Get http:///var/run/docker.sock/v1.20/version: dial unix /var/run/docker.sock: no such file or directory.
* Are you trying to connect to a TLS-enabled daemon without TLS?
* Is your docker daemon up and running?

You came to the right place.

If you follow the steps from official tutorial on how to install docker on Mac, you will come to a point where you can’t run docker. It took me a good chunk of time to find the solution so I’ve decided to write this short post on it. I hope it will be fixed soon as for this issue – but for now you will need to follow these 3 steps: Continue reading


Use House Ads To Improve Your Revenue

Ads at work on the beach

As developers and entrepreneurs, we have mountains of data.
Data that could change your business and move it forward. However, there is s
o much data that it’s overwhelming in some cases. Life force you, in some cases, to ignore it. But that’s the wrong path to follow! You wish data that is actionable and moving your revenue forward.

The freemium model was one of the reasons to a huge disruption in the data world. We see it clearly in the gaming market. For game developers, the need to understand users through data is particularly acute. In the past 2 years we learn that everyone is a gamer: there were 1.78B gamers worldwide as of August [Source] and the number keep moving up. Since we are talking here on free installation, we do need to make money after the users installed our game. It will be good 

Now, because users act differently the foundation of any monetization strategy should be your analytics.
There will be segments in your userbase that will:

  • Pay for In-App Purchases
  • Click on ads
  • Engage with certain types of ads (e.g. full-screen video)

A custom monetization strategy for each user means you are maximizing your revenue. There are few (new) tools in AdMob to help you to do this. It’s call ‘audience aware’ because it will tailored the right solution to the right user at the right time. Continue reading

Chrome, JavaScript, webdev

Chrome 46 Updates



Service Worker

Continue reading


Google Search Updates

 Screenshot 2015-09-24 21.00.19

Helping hacked sites reconsider – A successful reconsideration is the last step a hacked website owner will need to go through to let Google know the site is now safe for users. You can see what is the progress in the way Google handle these requests here.

Mobile – As of September 1st, Google updated the Mobile-Friendly Test to indicate that sites should avoid showing app install interstitials that hide a significant amount of content on the transition from the search result page. The Mobile Usability report in Search Console will show webmasters the number of pages across their site that have this issue. If you have a site that is not connected to Search Console, I recommend you to connect it, it’s a great way to keep track on your site’s health and get important messages from Google.
For more read here. Continue reading

Chrome, HTML5, mobile, webdev

Enable Users To Call From Your Web Site

TelephoneOn mobile devices, there is 99.65% chance that they have a calling capabilities.
It’s true that modern mobile browsers will automatically detect phone numbers and convert them to links, it’s a good idea to do this directly in your HTML code. It’s a great way to allow users to call your business with one click and the way to do it is with this simple tel: scheme:

Amazing coffee Service
<a href="tel:+972-3-123-3344">+

The result will look like:

A calling from site examples

Click to Call

You can click on it in order to see the code in action. Continue reading


Add Users to Google Compute Engine / EC2 Instances

KeysIn the past, when I wanted to share a Linux box with other users, it was simply by creating another user and making sure their password are ‘strong’. These days, it’s much safer not to use passwords over ssh but rather keys in order to connect (over ssh) to your machines in the cloud.

Here is the full list of commands you need to do in order to add a user. It’s being tested on Ubuntu so if you are on another OS, please continue with caution.


Chrome, JavaScript, mobile, webdev

Make Your Site Faster

We know that users prefer websites and applications that work fast. There is a lot of evidence that link performance to revenue. Let’s see what are main parts of the user experience that relate to the perception of ‘speed’ and how we can improve it.

RAIL performance model

RAIL is a user-centric performance model. Every web app has these four distinct aspects to its life cycle, and performance fits into them in very different ways. You can see in the image below the 4 main aspects and what are the time limits to each stage.

The RAIL model for performance


  • Focus on the user – the end goal isn’t to make your site perform fast on any specific device, it’s to ultimately make users happy.
  • Respond to users immediately  acknowledge user input in under 100ms – In mobile always use touch events and not click events (yep, click events still got this 300ms delay on mobile browsers)
  • Render each frame in under 16ms and aim for consistency. Users notice “jank” because in most cases it will ‘jump’ to their eyes.
  • Keep users engaged – deliver interactive content in under 1000ms.

Continue reading