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Linux Networking Systems Administration

A script to scan a network range and create Kea DHCP reservations for devices it finds

This script is very simple. It will scan a network range attached to the device it is run from, and will turn what it finds into a list of reservations for the Kea dhcp server – https://kea.readthedocs.io/ You run it something like this: The script should be easy to adapt for other uses also. Important […]

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Linux Systems Administration

How to find an open file smb file lock in a Dell Isilon Cluster

Commands were found here: https://www.dell.com/community/Isilon/Unlock-locked-file-on-Isilon-Share-via-MMC/td-p/7094821 My first thought for finding the open lock was to just use the MMC console on windows to find it, like this: However, it turns out that this will only show you the locks on a specific node, not the whole cluster. What you need to do is instead hop […]

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Linux Networking Systems Administration

Notes from debugging OSPF between cisco devices and Linux FRR ospfd configs

When trying to find why my ospf configs were not sending the correct costing from Linux -> Cisco devices, I found some useful commands that I thought I would note down for future reference. Linux – Using vtysh My ospfd.conf looks something like this: You can see the costs on linux using the vtysh command: […]

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General Tech Linux Powershell Systems Administration

Making a simple phone notification tool using IFTTT – Available on a Free Account

I previously made a guide on how to create a notifier using Microsoft Power Automate: https://jaytuckey.name/2020/04/21/making-a-simple-phone-notification-tool-using-microsoft-power-automate-previously-microsoft-flow/ However, the Request trigger used in that flow is only available on a premium account so many people won’t be able to use it without a work account. For those people, here’s how to make the same thing using […]

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General Tech Linux Powershell Systems Administration

Making a simple phone notification tool using Microsoft Power Automate (previously Microsoft Flow)

Note – The “Request” trigger used in this post is only available on a Premium Power Automate account. If you want this for personal use, I suggest you look at using IFTTT instead, see my guide here: https://jaytuckey.name/2020/04/21/making-a-simple-phone-notification-tool-using-ifttt-available-on-a-free-account/ Many of us have access through our work to Microsoft Power Automate, previously called Microsoft Flow. With […]

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Linux Networking Systems Administration

Workaround for SSH error to Cisco switch from Ubuntu 20.04 – no matching key exchange method found

Trying to SSH to a Cisco switch from Ubuntu 20.04 you may get this error: This error is because Ubuntu 20.04 has disabled the SHA1-based key exchange methods after some attacks have been found on SHA1. To work around this issue for Cisco switches you can use the command line argument -oKexAlgorithms=+diffie-hellman-group1-sha1 like this: To […]

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Linux Networking Systems Administration

A script to connect to a Cisco switch and backup the running-config using Python3 and Paramiko

I have been trying to find a way to create a regular backup of my Cisco switch’s running-config, so I can store it in my normal backups. However, after searching online I was able to find some tools that were almost there, but nothing that was quite as flexible as I needed, so I wrote […]

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General Tech Systems Administration

Using Zoho Email for a Local Football Club

I have recently helped my local football club – https://litchfieldfc.com.au – to move their email over from Office365 to Zoho email services – https://www.zoho.com/mail/. Overall it was a great experience, and I would recommend Zoho to other clubs and similar small organisations looking for email services. Here are a few things that I found nice […]

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Linux Systems Administration

How to get VMWare Remote Console to install on Kubuntu 19.04 – Probably works on other Ubuntu Versions also

When trying to set up my new Kubuntu install I went to install the VMWare Remote Console, and to my annoyance the installer would fail without any feedback on what was going wrong. Here’s what I needed to do to fix it. To start with , some details of my machines and setup: Date: 2019-05-24 […]

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Systems Administration VDI

How to Clean up VMware Horizon View pools without vCenter online and remove missing desktop pool from Global Entitlement using ADSI Edit

Recently I had to do a cleanup of a VMware Horizon 7 connection server, which involved removing all the existing desktop pools and recreating them. The trouble was, the old vCenter server had been removed, so when I tried to delete the pools using the Horizon Administrator Console, I got the error: Server ErrorUnable to […]