Day 2 of the Embedded World – MES053

Day 2 at the Embedded World 2017This is the 2nd episode of my 2017 visit to the Embedded World exhibition in Nuremberg. For the 1st part please refer to this episode.

I have captured these details on my 2nd day at the Embedded World 2017 in Nuremberg. I once again want to present smaller companies. Of course always with interesting, sometimes even exciting offers. I do not want to ignore the bigger ones, however it’s like looking for nuggets. You have to dig deeper and scrutinize into the inner details. I would be very happy if you find something in for you which is worthwhile to share again. Please do not hesitate and forward this episode to your friends and colleagues.

You are a more visual person? You’d like to see some details? Then look at my day#2 video and  day #1 video at YouTube.

The Embedded World topics in this episode are:

Thank You For Listening

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2 replies
  1. Pavel Mazniker
    Pavel Mazniker says:

    Dear Georg.

    Thank you for your podcasts. Sounds nice, quite professional and ordered. This one is particularly interesting. I work within Automotive Embedded Systems and Control Engineering domain and will be glad to study new technologies, collaborate/cooperate efficiently towards concrete goals and accomplishments, enhance my current knowledge and skills as well as to acquire new skills.
    The domain is very large and continuous study is essential to be efficient within the field.

    Would you be so kind as to write / explain me if I have a web site which supports only HTTP connections, how can I make it working on HTTPS? How the migration to HTTPS is done usually today?

    Kind Regards,
    Dipl.-Ing. Pavel Mazniker

    • georg
      georg says:

      Hi Pavel,

      thank you for your comment.

      As you know changing from http to https usually means to introduce an additional encryption layer (TLS/SSL) into the communication between host ( and client. For TLS-connection setup you need to have a certificate. It’s quite easy to create your own host-certificate, but if you do not spend some money (regularly every year) your certificate will not be signed by a Certificate Authority (CA). Every web-browser has public keys of lots of official CA’s built in. If the browser requests a https-connection and gets a host-certificate signed by an official CA, the browser will continue with complaints. If you, due to cost reasons or similar, try to use your own self-signed host-certificate the browsers will yell like hell. And many visitors will avoid visiting the website for that reason.
      Here enters the game. Aka roughly 2 years ago Let’s Encrypt came up to provide host-certificates for no money. These certs are only valid for establishing a TLS/SSL-connection, no signing, no encryption, nothing else. But they are free.
      And many web-service providers (like mine, I do not take the effort to run my own root-server) provide nice interfaces to introduce Let’s Encrypt certificates. Now it should be possible for everybody to use https instead of http.

      That’s fine if you start from scratch. If you already have a WordPress (or other) installation running you need to migrate from http to https. In WordPress there are tons of references to which have to be adapted. All manual work – no automation!

      I followed and Sorry, all of them in German, but in the first you find all of the mandatory SQL-statements to also modify the underlying MySQL-database.

      Migration lasted roughly 1 hour. Hereby taking the full-backup used up half of the time. Preparation time was a bit longer. Needed several hours to find appropriate details, give it a try on a test-domain and make some errors 🙂

      For me the backup was important. I do use Updraft Plus for making my backups. It’s up-to-date, reliable and can also migrate WP-installation from one domain to another.

      How migration from http to https is done nowadays in general I cannot reply. There are too many approaches, installations, web-servers and other impacts. But having a certificate available you should be able to find sufficient resources in the net.
      BTW, have a look at the https-session opening using wireshark. It explains a lot what actually happens between both parties.

      Cheers, Georg

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