12

Dec

2017

Determine Dell Hard Disk Location from Linux

December 12, 2017 jonny linux

On a Dell server I needed to determine the physical hard drive location for a faulty disk. Within the operating system the disk was mounted as /dev/sdk so I ran: udevadm info --query=all --name=/dev/sdk And from the output I could correlate this with... » More

03

Nov

2017

Dell racadm on Linux

November 3, 2017 jonny debian, linux, ubuntu

I'm currently using Linux Mint and wanted to communicate with the iDRAC interfaces on Dell servers. Install racadm: sudo echo 'deb http://linux.dell.com/repo/community/ubuntu xenial openmanage' | sudo tee -a... » More

16

Oct

2017

Command Line Optimise JPEG image

October 16, 2017 jonny linux, shell

This command significantly improved file size on disk although the quality value can be increased to adjust the image quality versus file size: convert input-file.jpeg -sampling-factor 4:2:0 -strip -quality 60 -interlace JPEG -colorspace RGB... » More

20

Aug

2017

Cropping / Masking a Video for Kdenlive

August 20, 2017 jonny gimp

I was helping a friend with creating a video and we need to mask out the distracting content around the video subject. If I had this problem with a static image I would use Gimp and the 'Crop' tool but I couldn't find anything in Kdenlive to allow me to... » More

03

Aug

2017

Managing RDP Remote Desktop Sessions/Users

August 3, 2017 jonny windows

It took me a little digging to re-discover the name of this tool that allows remotely logging RDP users off from other servers so I thought I would write it down in case I need a reminder. The command to run is: tsadmin.msc Or it can be added... » More

14

Jul

2017

Laravel Quick Start

July 14, 2017 jonny php

Quick reminder of steps to setup a Laravel project on Ubuntu/Linux Mint and similar. First install composer: sudo apt install composer Install PHP dependencies: sudo... » More

11

Jul

2017

Resetting Root Password in Single User Mode

July 11, 2017 jonny red hat centos

Using Red Hat  / CentOS etc one method of resetting the root user password is to boot into single user mode. To do so, interrupt the booting process if necessary so that you see the Grub boot menu: Press the 'e' keyboard button to edit the boot... » More

19

May

2017

Password-less Login to the MySQL Command Line

May 19, 2017 jonny mysql

The goal here was to be able to log in to the MySQL command prompt be simply typing mysql rather than: mysql -u root -p This is particularly useful for automation of routine backups etc. mysql_config_editor The command mysql_config_editor has... » More

30

Nov

2016

Connecting in to Docker MySQL Instance

November 30, 2016 jonny docker, mysql

Just recording a few of these steps for future reference. Pull the MySQL image from the hub: docker pull mysql/mysql-server:latest Run an instance: docker run -it -d -p 33060:3306 --name mysql-for-jonny -e MYSQL_ROOT_PASSWORD=opensesame -d... » More

17

Oct

2016

Gitlab Bulk Update can_create_group

October 17, 2016 jonny red hat centos

I had been allowing normal users to create groups within Gitlab but subsequently discovered some confusion among users between groups and projects. Some users had been creating a group with a single project when a project with multiple members was more... » More