In this example we will use Jasypt in mule to encrypt clear text passwords in property files. But you could use Jasypt to encrypt all sorts of things e.g. ... [continue reading]

2016 turned out to be a turbulent but positive year for IPv6 here in Norway. As the graph below shows, in the beginning of 2016 about 7.5% of Norwegian end users were IPv6 capable. One year later, this number had increased to almost 10%.

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Just the other day I sat at a customer, and they wanted a web application to present data, from there Mule integration application. The data should be presented to ... [continue reading]

While debugging a problem with OCSP, I had to sit down and understand what it really does and why. So What is OCSP, and why do we use it?

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One common complaint about systemd is that it does «too much», where the threshold for the appropriate amount of action is left unspecified. Some of the stuff it can do is hold your hand and offer some comfort functions.

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With the end of the advent, this years sysadvent calendar event is now over.

If you missed it, the articles are still ... [continue reading]

Welcome to a new season of our SysAdvent Blog!

This december, the staff at Redpill Linpro runs an advent calendar with sysadmin-related content!

Our season two of the SysAdvent Calendar kicked off, as expected, on December 1st.

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The Varnish Cache project recently released varnish-5.0, and Varnish Software released hitch-1.4.1. I have wrapped packages for Fedora and EPEL.

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The World is running out of IPv4 addresses, but luckily, we have IPv6 here now, and running the whole data center on IPv6 only is not just happening, it’s becoming the standard. But what if you have an app, a daemon, or a container that actually needs IPv4 connectivity? Then you may use 464XLAT to provide an IPv4 tunnel through your IPv6 only infrastructure. clatd is one component in 464XLAT.

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Using systemd-networkd to work your net

On a laptop, per-distribution network tools like ifupdown, network-scripts and netcfg are a bit limiting. NetworkManager is a reasonable solution to roaming and using multiple networks, but for those of us who don’t run environments like GNOME, it’s a little opaque, even now that it has nmcli.

Systemd includes a ... [continue reading]