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Preview: Debian GNU/Linux System Administration Resources

Debian GNU/Linux System Administration Resources

Tips for a Debian GNU/Linux System Administrator.


This site is going to go read-only

Sun, 10 Sep 2017 07:02:05 GMT

This site was born in late September 2004, and has now reached 13 years of age and that seems to be a fitting time to stop.

Implementing two factor authentication with perl

Wed, 12 Jul 2017 17:23:09 GMT

Two factor authentication is a system which is designed to improve security, by requiring a second factor, in addition to a username/password pair, to access a particular resource. Here we'll look briefly at how you add two factor support to your applications with Perl.

Debian Stretch Released

Sun, 18 Jun 2017 03:44:23 GMT

Today the Debian project is pleased to announce the release of the next stable release of Debian GNU/Linux, code-named Stretch.

Installing the Go programming language on Debian GNU/Linux

Thu, 15 Dec 2016 08:25:42 GMT

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software. In this brief article we'll show how to install binary releases of the compiler/toolset, and test them.

Performing IMAP queries via curl

Thu, 14 Jan 2016 08:27:45 GMT

Most people are familiar with curl, the tool that allows you to make HTTP-requests, and FTP-requests, via the command-line. Recently it gained the ability to perform IMAP operations, and this brief article demonstrates how that is done.

Simplifying repetitive Apache configuration with mod_macro

Wed, 9 Dec 2015 12:34:40 GMT

Apache is one of the more flexible webservers, and most of this is achieved via the use of various extension modules bundled with it, or externally available. mod_macro is a great module allowing you to simplifying configuration of multiple virtual hosts enormously.

Enabling swap on debian based system

Tue, 8 Dec 2015 18:01:55 GMT

Recently I found myself without a swap partition (having installed another OS and reworked my disk-setup) so I wanted to share a quick guide to enable swap again.

Offering IPv4-only services over IPv6

Sun, 29 Nov 2015 08:06:53 GMT

Although IPv6 is clearly the way of the future there are some software services which only support IPv4 access. Here we'll show a simple approach to exporting them to IPv6-based clients.

Analysing performance problems with systemd

Sat, 26 Sep 2015 18:06:21 GMT

Now that Systemd is the default init-system in fresh installations of Debian GNU/Linux it is worth highlighting some of the new features.

Validating SPF and DKIM at SMTP-time with exim

Tue, 4 Aug 2015 07:58:50 GMT

In our recent articles we've discussed creating SPF-records to avoid spoofed mails, and the creation and setup for DKIM-signing emails, for a similar purpose. Here we'll look at the other side of the coin; performing DKIM and SPF testing on your incoming email.