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Icingaweb2 claims that „Backend icinga2-ido is not running“

We recently had quite some issues with my a customers icinga2 installation, where icingaweb2 was constantly complaining about the IDO Backend is not running. The setup was as follows: icinga2 + icingaweb2 was running on server „webnode.local“ icinga2 database and icingaweb2 databases were on „database.local“.

Von |2019-04-15T09:29:46+02:00Juli 23rd, 2018|Blog|Kommentare deaktiviert für Icingaweb2 claims that „Backend icinga2-ido is not running“

Certificate Authority Authorization (CAA)

Ok, since Chrome68 the world has become a little more secure (treating http as insecure and enforcing certificate transparency).But now there's still one topic that could really offend you nicely secured server stack.

Von |2019-04-09T13:44:58+02:00Juli 15th, 2018|Blog|Kommentare deaktiviert für Certificate Authority Authorization (CAA)

Enable DKIM (DomainKeys Identified Mail) & DMARC Domain-based Message Authentication, Reporting and Conformance

SPF is quite good - DKIM is better, use both to become best and then, enable DMARC ;) Please read our article regarding SPF enabling, since we require this to be enabled to follow those steps.

Von |2019-04-15T09:22:59+02:00Juli 12th, 2018|Blog|Kommentare deaktiviert für Enable DKIM (DomainKeys Identified Mail) & DMARC Domain-based Message Authentication, Reporting and Conformance

Debian9 / stretch – disable mouse in vim

For those who are working with the newest Debian version and are used to work along with the vim editor, the auto-enabled mouse behaviour might be quite offending. At least for me, it was, that's why was looking for a solution to turn off the mouse constantly.

Von |2019-04-15T09:21:08+02:00März 7th, 2018|Blog|Kommentare deaktiviert für Debian9 / stretch – disable mouse in vim

Bypass HSTS in Chrome

HSTS headers (Strict Transport Security) are a huge security win since the web becomes more and more encrypted (thanks to letsencrypt.com)

Von |2019-04-15T09:21:28+02:00Februar 3rd, 2018|Blog|Kommentare deaktiviert für Bypass HSTS in Chrome