The ramblings of a computer geek
Tristan Self 
NMAP (Network Mapper) is a great tool for scanning your network to identify active hosts and the open/available services they have. NMAP provides quite a granular output for the port states, six in-fact, rather than just an open and closed. I’ll give a brief overview of the three main ones you’ll come across: Open, Closed … Read more
If you wish to test the connectivity through from your VMware ESXi host through to its storage when using iSCSI you can perform steps such as the following described within: https://kb.vmware.com/s/article/1003728 Firstly run this to get your list of vmKernel ports: Assuming you’ve labelled the vmKernel ports you use for iSCSI with something sensible you … Read more
VMware have recommended that upgrading from Distributed vSwitch version: 6.0.0 to 6.5.0 or 6.6.0 should be done as a side by side migration rather than an in place upgrade due to the risk of outage when performing the upgrade in place, this is detailed in the following VMware article: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-330A0689-574A-4589-9462-14CA03F3F2F4.html. It is understood that vDS … Read more
I wanted to make a page that could be easily exported to PDF without any cruft around the edges, such as the title or footers etc. You can do this at the whole Confluence level or at the Space level, sadly not at the page level it would seem. In my case I did it … Read more
Information Security has a number of foundational concepts, such as the Confidentiality, Integrity and Availability of information, information assets and services. In this article we’ll explore four key concepts that are good to understand to assist you in building and configuring secure systems and therefore protecting and improving the Confidentiality, Integrity and Availability of your … Read more
Following on from the https://www.geekmungus.co.uk/aws-cli-quick-start-linux guide, let’s see about how you can connect to your AWS from Python3 using Boto3. If you’ve not already done it, and if you’re not using the “default” credentials, you can specify a particular profile to use by adding it to an environment variable for example the below; where the … Read more
A quick guide to getting started with AWS CLI from your Linux machine. Amazon provide some good documentation (see links below), but I’ve summerised the key steps here for brevity. Install or Update the AWS CLI Firstly install the AWS CLI package with: Once installed, we now need to get the AWS CLI configured. Quick … Read more
It is possible to create a lookup from one workbook to another. Let’s say you have a list on one workbook and you want this to appear as a list on a second workbook, here’s how you can do it. Get the List from the Source Workbook Firstly get the ID section of the URL … Read more
So, finally BT Openreach had got round to installing fibre optic cabling to the local area to provide fibre optic based Internet. If you’re interested to know if you can get (or if not register your interest) by using the https://www.openreach.com/fibre-broadband site. You might ask, what do you mean fibre Internet? I already have fibre … Read more
Nissan don’t make it that obvious but the Nissan LEAF 2022 should use the “Nissan Connect” app and not the “Nissan Connect EV” app. It turns out that the “Nissan Connect EV” app only works with pre-2019 Nissan LEAF and Nissan NV200 Vans, if you have a later version of these vehicles you’ll need to … Read more