System & Network Admin

Learn how to set up PostgreSQL streaming replication with step-by-step instructions. This guide covers master and replica configuration, essential settings, and how replication works under the hood.

The top solution for syncing time across multiple devices in local and wide-scale settings. This adaptable and open-hardware-based product ensures complete interoperability and maximum clock sync security. Offers an all-in-one, out-of-the-box solution for clock sync.

This tutorial will discuss finding the current folder name in Bash.

Disk Voyager is a modern & fast file explorer.

Brief: A quick tip on how to create M3U playlists in Linux terminal from unordered files to play them in a sequence. I am a fan of foreign tv series and it’s not always easy to get them on DVD or on streaming services like Netflix. Thankfully, you can

Looking for an easy way to slugify text for URL or file naming? Our comprehensive guide teaches you how to write a Bash script to transform any tex...

Every Docker container requires a Docker image as its base. Images are updated throughout the development process, but by default these updates must be manua…

This article covers Linux access control lists (ACLs), which provide significantly more flexibility than standard Linux permissions.

In one of my recent blog posts, I shared my journey as a long-time FreeBSD user. I talked about how I’ve been incredibly happy with the system, appreciating its rock-solid stability, flexibility, and performance. But, like every OS, FreeBSD had its gaps, especially when it came to some modern developments - one of which has

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I’ve been using aerc for a bit now to test it out as my default mail client. I have to say that I’m truly loving it. Today I was trying to clean up the view so that I wasn’t looking at two dozen old IMAP folders in the folders pane, and remapping a few folder […]

If you need faster copy and write speeds than you're finding with Samba, NFS is a great option. Just remember that NFS isn't quite as flexible as Samba.

Lisp is one of those programming languages that seems to keep taunting us for not learning it properly. It is still used for teaching functional languages today. [Adam McDaniel] has an obvious fond…

Why Dune? I feel that bash is great in a lot of ways, but it doesn’t exactly feel cozy: it’s lacking a sort of personal touch, and it’s also missing quick and easy customizability. With my last shell, Atom, I had accomplished some of the coziness that bash was missing, but I also introduced a lot of really fatal flaws in the syntax and the type system. Dune, however, is designed completely differently from Atom (although you might notice the similarities in their widget systems). The interpreter itself is standalone, and it holds almost none of the functionality you see in the default distribution of Dune. If you wanted to, you could write a custom frontend and make a unique Dune based shell of your own!

Quick and easy steps

When troubleshooting #Ansible settings, use ansible-config dump --only-changed to show only configurations that differ from the default. It reveals the source of the change, whether it's from a config file or an environment variable. Here's an example 👇 $ ansible-config dump --only-changed # Output: # CONFIG_FILE() = /home/rick/ansible-examples/ansible.cfg # DEFAULT_PRIVATE_

Vanilla OS is an operating system built with simplicity in mind. It's fast, lightweight, beautiful and ready for all your daily tasks.

One of the most universal experiences of any Linux or Unix user is working through a guide or handbook and coming across an almost unbelievably complex line of code meant to be executed with a shel…

A Short IPv6 Guide for Home IPv4 Admins. GitHub Gist: instantly share code, notes, and snippets.

Ceph started as a 40,000-line C++ implementation of the Ceph File System, and it has since evolved into a comprehensive storage solution used by organizations worldwide.

The second part of my multi-cloud journey for Elixir. This post demonstrates how to deploy a Phoenix application to multiple clouds, cluster together and securely connect to a database instance.

A network interface is a software or hardware component that enables a Linux system to connect to a network. This connection allows your device to com...

Web server config files are mostly about expressing HTTP handling logic. Often, various handlers or middlewares need to be “composed” to form a cohesive HTTP handler that returns the desired responses. Structurally, config files are basically limited to two dimensions: rows and columns (or, lines and tokens). Syntactically, a config file’s second dimension can expand into more dimensions or scopes when blocks are opened (which are usually represented by curly braces { } and/or indentation, simi...

Hi @acole, welcome to the Caddy community. Caddy doesn’t have the site enable / disable aliases Apache does that moves/removes symlinks automatically, but Caddy can import multiple files when starting up, just like Apache does. You can use one central Caddyfile with import directives, e.g. import /path/to/site1/Caddyfile import /path/to/site2/Caddyfile # ... rinse and repeat Or just one import directive that fetches a glob: import /path/to/*.caddy Then populate the /path/to/ directory with...

In addition to @jameszen2020’s answer, with Caddy v2’s much more powerful matching capabilities, you may not need any dedicated functionality like ipfilter. Just use the remote_ip matcher and then handle those requests however you like. example.com { # Match requests that come from 192.168.0.1 @hateThisGuy { remote_ip 192.168.0.1 } # We really hate this guy in particular route @hateThisGuy { respond "I hate you, guy!" 401 } # We don't hate anyone else, though root /var...