Ralph's Blog about this and that (RSS | Atom)

Backup to Amazon S3

Published: 10. June 2018  •  Updated: 3. March 2026  •  linux

How to install a backup job that runs daily and sends files to Amazon S3

PuTTY, a free Windows SSH client

Published: 10. June 2018  •  linux

A quick introduction to the free Windows SSH client PuTTY. Learn how to connect to an SSH server and set up public/private key authentication.

Sending emails from your Linux server

Published: 16. June 2018  •  linux, selfhost

In this tutorial, I present two ways to send emails from your self-hosted Linux server: relaying through a third-party SMTP provider and running a send-only Exim4 server.

First configuration steps on a new VPS server

Published: 10. June 2018  •  linux, selfhost

Initial configuration steps after renting a new VPS server

Installing WireGuard on Amazon Lightsail

Published: 11. October 2018  •  Updated: 19. March 2026  •  linux

Installing WireGuard, a simple, fast, and modern VPN, on an Amazon Lightsail virtual server and connecting an Android mobile device.

Expose server behind NAT with Tor

Published: 10. January 2019  •  linux

In this blog post, I show how to make services installed on a server behind a NAT or firewall accessible from anywhere through the Tor network.

Expose server behind NAT with WireGuard and a VPS

Published: 10. January 2019  •  linux

In this blog post, I show how to set up a WireGuard VPN between a computer behind a NAT or firewall and a VPS in the cloud, exposing services running on the private server to the Internet and making them accessible from anywhere.

Setting up WireGuard on Windows

Published: 17. July 2019  •  linux

Installing WireGuard, a simple, fast, and modern VPN, on Windows and connecting to a WireGuard server.

Backup with restic

Published: 2. April 2020  •  linux

How to back up your data with restic, an easy, fast, efficient, secure, and free command-line tool.