Linux, programming and more
In a previously post I updated my webmail installation on a self hosted mail system to the latest release. This post will cover SPF (Sender Policy Framework) which is responsible for email authentication during the delivery of the emails.
For you own domains you should set DNS-based TXT records which described you policy and the systems(ip-addresses or ranges) which are allowed to handle e-mail traffic for your domain(s).
Its the long awaited stable release 1.4 of Roundcube webmail.
After more than two years of hard work, Roundcube finally gets the responsive skin with full mobile device support – called elastic.
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I wrote since 2013 a lot [1][2] about self hosted Tiny Tiny RSS Feed reader and this one is still alive and rung pretty smoothly :)
A couple weeks ago a wrote the following dirty-python-script to read out over the Tiny Tiny RSS API the amount of unread feeds for better reading control. The output of it is running into telegraf which sends the data to an influxdb which can be pretty visualised by grafana.
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MongoDB is a cross-platform document-oriented database. Classified as a NoSQL database. MongoDB can be used for rapid development and storing of Big Data while the database is very scalable.
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Python virtualenv or venv are the short forms of virtual environment.
Virtualenv is useful for different projects with unique requirements for each of them, like versions of python or at least different versions of Python libraries.
So they run parallel on a same system in separated from each other environments without any conflicts between them.
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