fernandoaleman

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

fernandoaleman

Install RabbitMQ on CentOS 7

sudo yum -y install epel-release
sudo yum -y update

Install Erlang

Download repository

fernandoaleman

How To Clean Up Ubuntu

Some simple ways to free up space on Ubuntu

Remove Unnecessary Packages and Dependencies

apt-get autoremove

fernandoaleman

How To Manually Update Chef Server SSL Certificates

Replace the contents of /var/opt/opscode/nginx/ca/www.yourdomain.com.crt with your ssl combined certificate.

Make sure SSL certificate includes DigiCert ca root certificate

Replace the contents of /var/opt/opscode/nginx/ca/www.yourdomain.com.key with your ssl key.

Reconfigure chef server

fernandoaleman

Problem

The GPG keys listed for the "MySQL 8.0 Community Server" repository are already installed but they are not correct for this package.

Solution

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2023

fernandoaleman

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

fernandoaleman

How To Install and Run ClamAV on CentOS 7

ClamAV is an open-source antivirus. It is used to detect viruses, trojans, and malware.

Install ClamAV

Install EPEL repository

yum install -y epel-release

fernandoaleman

Reduce LVM Partition on CentOS 7

Sometimes when creating a new CentOS 7 server, the drive is partioned with the root, boot and swap, and then all the rest of the space is given to the home directory.

Here, we are going to reduce the size of the /home partition and allocate the remaining space back to the root partition.

List Block Devices

List the current block devices

fernandoaleman

Problem

When using apt to install or update packaged, Ubuntu 22.04 now pops up a Daemons using outdated libraries box.

Solution

To disable this pop up box, edit

fernandoaleman

# Optimized my.cnf configuration for MySQL/MariaSQL
#
# by Fotis Evangelou, developer of Engintron (engintron.com)
#
# ~ Updated January 2020 ~
#
#
# The settings provided below are a starting point for a 2GB - 4GB RAM server with 2-4 CPU cores.
# If you have different resources available you should adjust accordingly to save CPU, RAM & disk I/O usage.
#