I just installed MiaB on a new VM, and for some reason certain services keep stopping by themselves. The ones I've noticed are SSH and the mailinabox service itself, which provides the admin interface.
I can start them again at the command line, and they work fine for 10-15 minutes then stop again. It's most frustrating not being able to SSH in.
Other services, such as DNS, SMTP, Roundcube etc. seem to be unaffected.
Where should I start diagnosing this problem? Is there anything specific I should be looking for in the logs?