Accelerate SSH connections in ansible
Unfortunately, you keep coming across the nicely-intentioned but far too complicated tip when passing SSH across multiple machines with ansible:ansible_ssh_common_args and ProxyCommand.
Send encrypted logs to Graylog (Bonus: Docker container)
Docker allows logs to be sent unencrypted to a remote log system. Encryption plays a minor role on the intranet, but what if you want to send logs via the web?
Set up a simple SSH bruteforce check in Graylog
There is no security without proper log monitoring, but nobody has time to check all logs all the time. Graylog automates that.
Push icinga2 metrics to Graphite
icinga2 is a monitoring environment that does not inherently process metrics in time series.
Fritzbox behind OPNsense
Fritzbox is a German router brand. Almost everyone in Germany has a Fritzbox. This router is known to work day and night. Unfortunately, you can configure almost nothing and debug very little, which makes the transition very difficult.
Send encrypted logs to Graylog (Part 2: Windows machines)
In the first part we learned how to create a so-called Shadow CA and send logs with Linux machines to Graylog. We now want to make this possible for Windows PCs as well.
Send encrypted logs to Graylog (Part 1: Linux machines)
Graylog is a log aggregation tool that makes it easy to read and analyze logs due to its Elasticsearch or Opensearch implementation. Unfortunately it is not possible to exchange Graylog with old known tools like rsyslog. Rsyslog uses UDP as protocol, which is basically unencrypted (exception QUIC).