NTP Time Service

NTP Time Service

NTP is an Internet protocol for synchronizing computer system clocks by exchanging data packets over networks with variable latency. NTP uses the UDP protocol as its transport layer (port 123). It is designed to withstand the effects of variable latency. In this post I explain how to configure NTP on a GNU/Linux machine (Gentoo distribution) to set and maintain the correct time, while also serving as a time server on your home network. …

May 1, 2009 · 7 min
SSH on Linux

SSH on Linux

The SSH service is the first thing you should configure on a Linux system. With OpenSSH you get a set of tools – including ssh, sshd, scp, etc. – that allow you to enable secure remote shell access to your machine. If you come from the “telnet” era, you should forget about it; its replacement today is SSH. …

February 1, 2009 · 2 min
Rsync on MacOS

Rsync on MacOS

The rsync program comes bundled with Mac OSX, but if you need a more recent version with additional features – such as metadata preservation, extended character support, or cross-platform character handling – you’ll need to install one of the latest versions. …

November 13, 2006 · 3 min
Hello World

Hello World

Back in 2002 I decided to start sharing technical documentation and this is the first post I ever wrote. It explains how to work with a piece of software called Nibbleblog. Shortly after I moved to Wordpress and nowadays (2021) I have switched to “Jekyll + GitHub Pages”. I’m keeping this first post as a reference. …

November 11, 2002 · 3 min
Pending Migration

Pending Migration

This post only serves as a reference to track the posts I still need to migrate. My blog started with Nibbleblog but later evolved to Wordpress, and nowadays (2021) I have switched to “Jekyll + GitHub Pages”. In this post I keep references to the Wordpress files that I need to redirect to the new posts once I have migrated them. …

January 1, 2000 · 2 min