System

Available Memory

BlueMind's default configuration requires at least 6Gb.

Locales

The en_US.UTF-8 must be installed and generated (even if the system is configured to use another locale).

To check that it is installed correctly, use the following command line:

$ locale -a|grep en_US
en_US.utf8

Linux distribution

BlueMind requires a blank, dedicated server or virtual machine.

BlueMind requires a 64-bit version of supported distributions (for Ubuntu, make sure you have the Server version):

BlueMind 3.5.9 provides additional support for the following distributions (always in 64-bit versions):

Repository signature

Repositories are now signed for all supported Ubuntu/Debian distribution – this is a requisite for Ubuntu 18.04 and Debian 9.

You may, if you need or want to, manually import the key on all our supported distributions using the following command:

curl https://pkg.bluemind.net/bluemind-deb.asc | apt-key add -

Otherwise, a warning may come up during earlier version updates. Note that this will not disrupt updates.

Network & DNS

The server must have a static IP, system defined or supplied by a DHCP server.

The BlueMind server hostname must be configured correctly, and the server name must be resolvable by name from another machine.

Specifically, BlueMind expects the following results to the hostname command:

$ hostname
mail

must return the short system name, e.g. here: mail

$ hostname -f
mail.blue-mind.net

must return the fully qualified system name (FQDN), e.g. here: mail.blue-mind.net

The hostname also has to be properly set in the server's /etc/hosts file:

IP_SERVER mail.blue-mind.net mail

If your server has several network cards, the first one (eth0) must bear the BlueMind server's external IP address.

The guidelines below are not required but recommended to make your server's maintenance more straightforward.