Short answer: sending .html-formatted email is rather easy, even from a local laptop. But there can be difficulties, which are not avoided easily. To begin with, the short and (hopefully) working answer:
Mac OS | CentOS | Debian
cat letter.html | mail -s "$(echo -e "Testing email\nContent-Type: text/html")" login@example.com
Make sure you check the SPAM folder, as it has nearly 0 chance of getting through to your mailbox from scratch. If it doesn’t work out, you’ll have to go deeper.
There is a problem with iBooks: books are getting removed locally and uploaded to the cloud, if the space is running low on the device. But with iOS 11 some users experience unwanted file upload even when there is no space shortage.
And there lots of topics and discussions all over the web, starting with official help site, Reddit, macrumors.
UPD: There is not way to guarantee proper behaviour. That is an official Apple Support:
There isn’t a way to prevent iCloud from offloading downloaded books. The best advice is to redownload a book before leaving a Wi-Fi connection, if you know you may be not near one later. You can also leave feedback requesting that feature, as we do like to hear ideas and suggestions for our products. You can leave your feedback using this link: apple.co/Feedback Select iOS Apps > Books
These are some options that you can try, but they are probably won’t help:
If you are dealing with relatively low datasets < 1M entries (and you just have to use Spark for some reasons), significant speedup can be achieved with tuning (lowering) number of partitions.
Basically, setting `spark.default.parallelism` param to number of cores and `spark.sql.shuffle.partitions` to something like 20 (instead of default 200), will allow you to receive significant speedup, since Spark won’t lose time on shuffling RDDs and generating large number of tasks.
Inspired by recent Bobuk’s tweet (russian), here is the curated list of the best browser multiplayer games to kill your time. All of these games are highly addictive and playable in the browser.
When you have shiny Zeppelin application, which runs smoothly and does what it supposed to do, you start transferring your code into Spark environment to use it in production. If you are novice in Hadoop environment (like me), you might encounter a couple of tasks, required to be solved before you will celebrate project launch.
Basically, it can be broken down into easy chunks:
One of the best books about the history of the common internet, how the whole IT sphere was developed, through the interviews of the founders of tech companies. It is unique material of opinions and real life stories of founders companies which made a lot of today commodities.
This is a book, there can be no good short summary for, because every story is unique, but they have something in common. And despite that it can only be highly recommended to read this book, despite the fact that most of the companies were built and sold over 2 decades ago, there are some key insights which can be written down here.
Staingate — это признанная Apple проблема, из-за которой экраны (а точнее — антибликовое покрытие) MacBook-ов начинали выглядеть потёртыми или поцарапанными, не смотря на отсутствие явных физических повреждений. Проблемы были подвержены ноутбуки от 2013 до 2015 выпуска и для них существует возможность бесплатной замены дисплея в авторизованных центрах Apple. Не смотря на отсутствие фирменных магазинов, в России работают авторизованные сервисные центры, в которые можно придти и совершенно бесплатно заменить дисплей.
Nagios web-interface can fail to connect to process or to display any content at all. There can be different source of the problem, but the key to solving it:
In case it doesn’t help, and nagios simply refuses to start, showing only:
Running configuration check...
or
Starting nagios:.
You have to manually run configuration check with the -v flag:
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
If the check is correct, but nags refuses to run, providing no info in {path}/var/nagios.log and not creating {path}/var/nagios.lock, then the problem might be in the device space.
Nagios is a great tool for server monitoring, providing rich environment to setup different notifications and monitoring scenarios.
It supports hosts and notification service grouping, comes with a GUI out-of-the-box and has really great community and lots of documentation online.
Pretty much all the setup can be done, based on the google’s top search results. Nice place to start is Digital Ocean post about setting up Nagios on Ubuntu 14.04. There is also another nice post, explaining how configuration is done.
If you fail to install package, or your server is different from Ubuntu, f.e, you run some Debian Stable server, you can address this post (RU) and build Nagios from source.
Configuring client can be done via this post, but check_nrpe command available only on server, not on the client.
This is a book about finding your mission. In this book not only author introduced a framework for dealing with mission-follow-your-passion-work-has-to-bring-pleasure problem, but he also wrote how he applied the advices, he came up with during the research, for himself.
