Overview Sometimes an e-mail sent from the server to a recipient will fail. There are a variety of causes and as a “best practice”, the receiving side will report the failure reason for easy understanding. However, it is prudent to note that a reason is not mandatory (just good practice) and there is no consistent…
Overview End-of-line (“EOL”) markers indicate a discontinuation of a current line and beginning of a new line. EOL markers are akin to the return (“⏎”) key on a typewriter and, depending upon operating system, are interpreted as a single or combination of characters. On Windows On Windows operating systems, an EOL is marked by two characters:…
Overview Pyramid is a Python framework that is the spiritual successor to Pylon and Zope, frameworks popular in the mid-to-late 2000s. Pyramid is supported with on v6+ platforms using any Python version from 2.7 onward with Passenger. Quickstart All commands are done from the terminal for convenience. PREREQUISITE: create a suitable Passenger-compatible filesystem layout cd /var/www…
Overview Express is a Node.js framework inspired by Sinatra for Ruby: it’s based on minimalism with a penchant for performance. Express is part of the MEAN fullstack: MongoDB, Express, Angular.js, and Node.js. MongoDB may be setup in a separate guide. Express is supported on all v6+ platforms using Passenger to manage isolated processes. Quickstart All steps are done from the terminal:…
Overview A subdomain is an extension of your primary domain or an addon domain that can serve as both an e-mail domain and website location. Creating a subdomain Configuration parameters A subdomain may be added within the control panel under Web > Subdomains. A subdomain may exist in a few flavors and likewise function differently: Subdomain…
Overview A hostname, combination of optional subdomain and mandatory domain, may be configured to act as an e-mail domain, ie. receive e-mails on that host. These hostnames are added via Mail > Mail Routing. For any domain present there, the server will act as the final destination bypassing MX lookups. This will result in problems if…
Overview An addon domain is a domain in addition to your primary domain. Every package supports an unlimited number of addon domains, limited only by the amount of storage and bandwidth allotted to your account. Adding a new domain A new domain may be added within the control panel under DNS > Addon Domains. There are…
Overview Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering. It is available on newer platforms (v6+) without any additional compilation from source. Accounts with terminal access are eligible to use Memcached. Quickstart From the terminal, run: memcached -l 127.0.0.1 -p PORT where…
Overview Flask is a Python microframework for building web sites with minimal overhead. Think of it as a lightweight version of Django with fewer features, but better speed. Flask is supported on v6+ platforms using Passenger. Quickstart All steps are done from the terminal. While it may be possible to deploy a Flask application without using terminal,…
Overview E-mails sent from a Django application may use “webmaster@host.domain.tld” or another erroneous address as the From field. Cause ServerAdmin values are not set in Apache configuration for virtual hosts to prevent unintentional information leakage. Solution Set DEFAULT_FROM_EMAIL and SERVER_EMAIL in your Django settings file. An example configuration follows: EMAIL_HOST=’localhost’ EMAIL_PORT=’587′ EMAIL_HOST_USER=’myadmin@mydomain.com’ EMAIL_PASSWORD=’mysmtppassword’ DEFAULT_FROM_EMAIL=EMAIL_HOST_USER SERVER_EMAIL=EMAIL_HOST_USER Replace EMAIL_HOST_USER and EMAIL_PASSWORD values with your…