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Interactive Map on Your Web Page – with Markers – Leaflet.js and OpenStreetMap
Create an interactive map on your web page. Using Leaflet.js, it can be a static web page on any server. With OpenStreetMap.org tiles, you can start using it without any API keys and without registration. Includes live example.
Posted in Uncategorized
Tagged EcmaScript, GIS, hello world, html, HTML 5, JavaScript, kartta, Leaflet.js, Live example, locate, location, map, OpenStreetMap.org, simple
1 Comment
Your JavaScript in Thunderbird – Manipulate Shown Email Contents with Developer Console
You can run Javascript interactively in Thunderbird. It containts a developer toolbox, similar to Firefox F12 console. In this short example, we change some text on the message being viewed. With Firefox, I have used similar content manipulation to fix … Continue reading
Posted in Uncategorized
Tagged Developer Console, email, html, JavaScript, mail user agent, MUA, short, Thunderbird, XUL
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Database Connection from Python Flask to Postgre, Using Plain SQL
Create a website with database. Use the simple popular Python framework, Flask. Apply your existing SQL skills. This short program creates a new PostgreSQL database and inserts some records. If database and sample records already exist, initialization is skipped. Finally, … Continue reading
Posted in Uncategorized
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First Steps on a New Virtual Private Server – an Example on DigitalOcean and Ubuntu 16.04 LTS
These short notes list example first steps when manually configuring a new virtual private server on DigitalOcean and configuring a DNS name on NameCheap. Always use good passwords. Only good passwords. Good passwords every moment.
Posted in Uncategorized
Tagged adduser, DigitalOcean, example, openssh-server, root, short, sshd, sudo, tutorial, virtual private server, vps
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Teaching Puppet Configuration Management in The National Library of Finland
I’m very happy to get a change to talk about Puppet in the National Library of Finland. Working with experienced professionals makes an interesting day. I have used their Finto ontology to create one of the largest free Finnish-English dictonaries … Continue reading
Posted in Uncategorized
Tagged configuration management, course, Helsinki, Kansalliskirjasto, kurssi, linux, National Library of Finland, puppet
3 Comments
From Empty Computer to Guest OS in 5 min – Install Vagrant and VirtualBox on Ubuntu 16.04.3 Live USB
With VirtualBox, you can run guest operating systems – Linux, Windows, OSX – under Linux. Vagrant makes it easy to create a new headless guest system and connect to it with SSH. It’s very fast: less than five minutes to … Continue reading
Posted in Uncategorized
Tagged bento, live USB, ubuntu, Ubuntu 16.04 LTS, vagrant, VirtualBox
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Hello Flask Web App – Python 3 Flask Development Server Install on Ubuntu 16.04
You can create web apps with Python and Flask. This short “Hello World” tutorial shows you how to install development server for Python 3 and Flask. There are two very successful Python web frameworks. Flask is the simple one, Django … Continue reading
Posted in Uncategorized
Tagged CRUD, flask, framework, hello world, microframework, Python 3, python3, python3-flask, simple, tutorial, web
1 Comment