Update: In the previous version of this post, the sequence of the credentials in /etc/dma/auth.conf was wrong.

Not a long time ago, in a previous post, I recommended to use nullmailer for a simple send-only mail transfer agent to relay system mail. I must revise that advice because of two reasons:

Setting up a development environment had always been difficult but became much easier with the lunch of Windows Subsystem for Linux (WSL). Because Windows's default terminal cmd is a shame and I prefer using zsh over bash, I recommend to do the following:

Update: See this updated post on why you should not use nullmailer but dma for relaying system mail.

Mounting external drives in Windows Subsystem for Linux is quite simple. That said I always forget how to do so. Here's a short reminder:

Often I am unhappy with the default settings of the SSH daemon. Not that they provide a security threat to the systems but you can make it even more difficult for an attacker to get access to a system. In addition to the default settings I always enable the following: