Technology – Page 5

Kapa Haka by Westmere Primary School

The kids from Westmere Primary School came to the Spark NZ atrium to perform a Kapa Haka. Originally intended for another audience which didn’t work out at the last minute they moved to Spark City in Auckland and boy they put on a great show. The costumes were fantastic, the singing was great and the… read more…
MythTV on CentOS 7

MythTV is the best Open Source media recording application MythTV Wiki This article follows the path I traveled when setting up a new MythTV server running on CentOS 7. The setup I followed in setting up the host is detailed firstly in CentOS 7 base VM for WordPress and MythTV then in CentOS 7 VM for WordPress… read more…
Monitor all queries to MariaDB

Want to see what is being run against your MariaDB this is what to do. Firstly you need to enable logging to a file of all queries. You do this by running: SET GLOBAL general_log=1; SET GLOBAL general_log_file=’/var/opt/rh/rh-mariadb102/log/mariadb/maria_general.log’; Problem is you need special permissions and in practical terms the easiest way is to run it… read more…
Installing Tomcat 9 behind Apache on CentOS 7

There are a number of posts on how to do this. I have created this post mostly for my own records so I know I will continue to have a record of what I have done. Setup Ensure you have at least JDK 8, I have the RPM “java-1.8.0-openjdk.x86_64” installed by this point. Create a… read more…
CentOS 7 VM for WordPress and MythTV – Post install setup

In the post CentOS 7 base VM for WordPress and MythTV I described how to create a base CentOS 7 VM. This post describes follows on from that post and describes the post installation tasks to make the VM a good solid base for me to run WordPress or MythTV. When setting up a Linux server… read more…
Rename a CentOS 7 host

Simple and official way to rename a host: hostnamectl set-hostname centos7-base.cantabrian Then restart the host. You should find the new name is reflected in the file: /etc/hostname Note: You only need to edit “/etc/resolv.conf ” if you are changing workgroups or domains. Get hostname details You can use hostnamectl to get other details by running:… read more…
Low Disk Space on “boot”

If you have ever got this popup warning on CentOS/RedHat 7 this post may help. This happened to me and when I looked at “/boot” it looked like: You can see there is the current kernel and three previous kernels to choose from: CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core) CentOS Linux (3.10.0-957.21.3.el7.x86_64) 7 (Core) CentOS Linux… read more…
CentOS 7 + PHP 7.2 + Python 3.6 + Apache 2.4

I am setting up a new CentOS 7 server, in 2019, because I want a long life public facing WordPress host that I can update easily. For example when the “Heartbleed” security bug, in the OpenSSL cryptography library, was discovered you needed to update your SSL install. This proved to be a major problem for… read more…
CentOS 7 base VM for WordPress and MythTV

I have two primary servers I use all the time, the first is the WordPress VM which run the Zoyinc website and secondly a VM that runs MythTV. Both are currently running Fedora – WordPress is on F18 and MythTV is on F16. These were installed in July 2012 and February 2011 respectively. So pretty… read more…
Two MythTV systems on the same LAN

I have an aging MythTV frontend and separate backend that I need to upgrade. The plan of attack is to create a new system, get it running smoothly and work out a migration strategy. Then once the new system is working correctly switch over from old servers to new. All well and good except I… read more…