In PostgreSQL, the `search_path` is a configuration parameter that determines which schemas the system will check and in what order when an object (like a table or a function) is referenced by a simple, unqualified name. By default, the `search_path`…
On a Linux system, TCP ports in a reserved range (typically less than 1024) can only be bound by processes with root privilege. If we’re trying to bind a port in a Linux environment less 1024, we will receive a…
It was late Thursday evening when I ran into a pesky network issue on our Linux server that had me stumped for hours. We had just wrapped up deploying a new application, and suddenly, users started reporting intermittent connectivity issues.…
When it comes to Amazon Web Services (AWS), S3 is one of the most popular services. This is because S3 provides a secure and scalable storage solution for businesses of all sizes. In order to ensure that your S3 buckets…
A PFX file is a certificate in PKCS#12 format. It contains the SSL certificate (public keys) and the corresponding private keys. Most of the Certificate Authorities will not issue certificates with the private key. They just issue and share the…
Recently, I encountered a strange problem when executing the binary file protoc, which resulted in the error “no such file or directory: ./protoc”. The file was clearly there, but the error persisted, making me wonder if there was a bug…
If you’ve ever wondered how to handle multiple values in Ansible — like a group of servers, packages, or users — that’s where lists come in. Lists let you store several items under one variable and use them in loops,…
In Ansible, you can check if an element is present in a list using the in keyword in a playbook or in a Jinja2 template. Here’s an example of how you can use the in keyword to check if an…
Red Hat has recently announced significant updates to its flagship operating system. It has several key enhancements, focusing on containerization, system management, and storage solutions. These improvements include: The aim of these updates is to bridge the gap between current…
Introduction If you’re new to Linux or have recently switched to it, you may have been overwhelmed by the vast array of commands you can use within it. These commands have a different syntax than those you might be used…
