Dean Grant

Generating certificate requests with additional subject identities using OpenSSL

January 17, 2016

The below provides steps to how the process used to create a certificate request to issue to certificate authority server in an internal environment. However, the steps to create the certificate request can be performed if submitting a certificate request to a third party certificate authority. Firstly, I will create a configuration file (openssl.cnf) to … More Generating certificate requests with additional subject identities using OpenSSL

Integrating Nagios XI alerts to a Slack Channel

January 16, 2016

Recently, I have been exploring the use of Slack for messaging and collaboration and in particular integration with other tools. In this post I will discuss enabling integration with Nagios XI and providing the functionality to send alerts generated to a channel within Slack. Firstly, you need to have created a login and be an … More Integrating Nagios XI alerts to a Slack Channel

Forcing SSL with permanent redirect for Nagios XI

January 15, 2016

The scope of this article is to describe the steps required to configure SSL for Nagios XI and to force SSL with a permanent redirection. In this example, I have made the assumption that certificate files have been generated and in this example I will be using the hostname ‘nagios.dean.local’ for my Nagios XI server … More Forcing SSL with permanent redirect for Nagios XI

Scripting Games – December 2015

January 14, 2016

So here is my submitted entry to the December 2015 Scripting Games Puzzle hosted at PowerShell.org to which comments have been posted on the Wrap Up containing the official answer(s). The challenges presented in this puzzle are described below and to which I detail my approach to solving each one. Split $list into a collection of entries, as you typed them, … More Scripting Games – December 2015

Installing Guest Additions for a Kali Linux guest in VirtualBox

December 16, 2015

In order to install the guest additions within a Kali Linux guest using Oracle VM VirtualBox to optimise the guest operating system for better performance and usability, there is a requirement to install the kernel header files. In order to perform the above we can invoke the following from the terminal: Now we can attach … More Installing Guest Additions for a Kali Linux guest in VirtualBox