Overview
Monitoring mail outbound (egress) using Splunk isn’t as straight forward as you might think. I’ve put together a nice search string that will help identify egress email from an Ubuntu server.
Graphing mail egress on Ubuntu using Splunk
Sending Commands to Elasticsearch API’s
Overview
In this article I will give examples of how to connect to the Elasticsearch API’s using either Postman or natively using PowerShell.
Grafana Alerting with Telegram Webhook
Overview
Grafana is great but unless you are going to stare at monitoring panels all day and night then you might want to get some alerts. I’ve found a nice way (and free way) to setup effectively a webhook to Telegram.
OpenSSL Common Commands
Overview
Released in 1998, OpenSSL is a cryptography library available for Linux, Windows, BSD and Mac OS systems. The library allows users to do a variety of tasks such as but not limited to creating CSR’s / private keys, convert certificates to different formats and validiate existing certificates.
Over the years I’ve written down commands to manipulate OpenSSL to do what I want and now want to share what I have to the world – enjoy 🙂
Ansible – Build A Mail Server Using Postfix, Dovecot, MySQL, SpamAssassin And More…
Overview
If you need to build your own Postfix, Dovecot, SpamAssassin and Roundcube server for your own mail hosting, look no further than this all in one Ansible script. Just configure the global configuration file, run the script and BAM, you have a fully functioning mail server! This script completes an end to end configuration of the server and covers the following:
