Do you use let's encrypt?

8436 votes ~ 27 comments


Debian Stretch Released

Posted by Steve on Sun 18 Jun 2017 at 03:44

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

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Installing the Go programming language on Debian GNU/Linux

Posted by Steve on Thu 15 Dec 2016 at 08:25
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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.

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Performing IMAP queries via curl

Posted by Steve on Thu 14 Jan 2016 at 08:27
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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.

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Simplifying repetitive Apache configuration with mod_macro

Posted by Steve on Wed 9 Dec 2015 at 12:34

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.

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Enabling swap on debian based system

Posted by tuwid on Tue 8 Dec 2015 at 18:01

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.

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Offering IPv4-only services over IPv6

Posted by Steve on Sun 29 Nov 2015 at 08:06

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.

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Analysing performance problems with systemd

Posted by Steve on Sat 26 Sep 2015 at 18:06

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

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Validating SPF and DKIM at SMTP-time with exim

Posted by Steve on Tue 4 Aug 2015 at 07:58
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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.

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Tying together SPF and DKIM with DMARC

Posted by Steve on Mon 3 Aug 2015 at 19:35
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When it comes to increasing deliverabiity of email, and preventing spoofed/forged emails the preferred solution these days is DMARC, which allows the use of SPF and DKIM to be enforced for domains in a unified manner.

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Avoiding mail-spoofing with SPF

Posted by Steve on Sat 1 Aug 2015 at 17:34
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The Sender Policy Framework, or SPF, is an email-validation system which is designed to allow spoofed mails to be indentified. In this brief introduction we'll look at how you can configure your outgoing emails to take advantage of this validation.

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