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Migration Guide for Koha 16.05 from Ubuntu 14.04.6 LTS to Ubuntu 22.04 LTS

This guide will help you migrate a Koha 16.05 instance from an older Ubuntu 14.04.6 LTS server to a new Ubuntu 22.04 LTS server. The instance will be named "koha16".

Prerequisites:

1. Ensure you have a backup of your Koha database and configuration files.
2. Verify the availability of all required dependencies and packages on the new server.
3. Have root or sudo access on both the old and new servers.

Step 1: Prepare the Old Server

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Guide to Migrating Passbolt Server to a New Server

This guide covers two important aspects:

1. Migrating a Passbolt server from an old server to a new one, even if the new server has a more updated operating system.
2. Converting a Passbolt Pro installation to a Community (CE) version.

The process described is applicable both for a new installation and for an update on the existing server. In my case, I migrated from CentOS 7 to AlmaLinux 9.4.

Old Server

First, create a backup of the files and database of your old Passbolt server. To do this, execute:

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Reference: https://docs.konghq.com/hub/kong-inc/rate-limiting-advanced/

Overview

The rate-limiting-advanced-ok plugin is designed to provide enhanced rate limiting capabilities to services managed by Kong API Gateway. This plugin extends the basic rate limiting features by offering more granular control over rate limits based on a variety of criteria including IP, consumer, credential, and more. It supports both sliding and fixed window types for flexibility in how rate limits are enforced.

NOTE: The code was rewritten based on the original "rate-limiting-advanced" on May 27, 2024.

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MySQL User Privilege Management Script

Description

This Python script automates the process of setting MySQL database privileges for users managed under a cPanel/WHM environment. It leverages the cPanel's UAPI and WHM API to modify database privileges based on a predefined list of users. The script is particularly useful for system administrators who need to manage database access rights efficiently across multiple users.

Features

• List Accounts: Retrieves all cPanel accounts using the WHM API.
List Databases and Users: For each cPanel account, it lists all associated MySQL databases and the users who have access to them.

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Advanced SSH Configuration Script for Dynamic Port Assignment and Enhanced Security

Introduction:

This Bash script automates the configuration of SSH services on Oracle Linux 8.9, including dynamic port assignment based on IP address input, SELinux and firewall adjustments, and SSH key pair generation with enhanced security measures.

Functionality:

The script starts by verifying the presence of an IP address as input. It then parses the IP address to construct a unique SSH port number based on predefined rules: the port number starts with a '6', followed by the first digit of the first IP octet, and the last digits of the remaining three octets.

Key Features:

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The script provided is a Bash shell script designed to compute an SSH port number based on a specific set of rules applied to an input IP address. Here's a detailed description of how the script works and what it's designed to do:

Script Description:

The purpose of this Bash script is to dynamically calculate a port number for SSH connections based on a unique format derived from an IP address. The script takes a single IP address as an input argument and processes it to generate a custom SSH port. The custom port number is constructed following these rules:

• The first digit of the port is always '6'.
• The second digit is taken from the first digit of the first octet of the IP address.
• The next three digits are composed of the last digit from each of the three remaining octets of the IP address.

This method ensures that each IP address is likely to correspond to a unique port number, facilitating distinct SSH configurations for different servers or devices identified by their IP addresses.

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How to Retrieve Secret Credentials from Jenkins for Docker Registry

First off, I want to state that what I'm about to describe isn't lawful. If you need access to secret credentials, you should request them from your administrator. I am not responsible for any misuse of this information.

Understanding Our Goal

The aim is to obtain secret keys for Docker registry repositories accessible from a pipeline.

The Problem

When a pipeline runs, Docker registry credentials aren't exposed in the output. This is a security measure; credentials are replaced with asterisks, like so:

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Fix error JAVA PATH Site24x7 On-Premise Poller

I recently encountered a somewhat annoying issue while attempting to install the Site24x7 On-Premise Poller on an AlmaLinux 8.9 machine.

The problem manifested as follows:

./Site24x7OnPremisePoller_64bit.bin Preparing to install... 
Extracting the JRE from the installer archive... 
Unpacking the JRE... 

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Closed

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Fixing: Passbolt Recovery Emails Not Arriving or Rarely Arriving

I spent an entire day working to uncover solutions for this issue. Hopefully, you can appreciate the effort with a comment 😊

There are two paths to consider. It's important to note that all steps were taken on a CentOS 7 server with a PRO installation (which allows updating from the Passbolt master branch).

Solution 1: Adjusting Mail Size Limits

Firstly, check if the Postfix mail server is queuing the emails. This can be done by tailing the mail log file: