Baikal is a lightweight, free and open-source CalDAV and CardDAV server implementation that allows you to synchronize your address book and appointments with multiple clients such as mobile devices or a desktop application like Thunderbird. It lacks a couple of important features for enterprise use cases, such as address book and calendar sharing between multiple users, but it’s very suitable… Read more »
Installing kvm on a recent Fedora OS is quite easy. Fedora already ships all the necessary software packages and kernel modules for running a kernel virtualised machine. 0. Prerequisites Since late 2005 / early 2006 almost every x86 processor is capable of hardware virtualization. To check if your CPU supports Intel’s VT-d or AMD’s Pacifica, which is a requirement for… Read more »
A handy one-liner to list the crontab entries for every user:
To invoke logrotate manually to debug configuration settings, there is a builtin debug flag: To force a log file rotation, regardless of the specified criteria (such as age, minsize, etc.), run: Keep in mind, that you can use individual logrotate configuration files from /etc/logrotate.d/ but settings are inherited from the global logrotate config /etc/logrotate.conf. For a comprehensive list of options,… Read more »
Setting up an ownCloud instance is rather straight forward. OwnCloud6 rpm packages for recent Fedora versions (20+) already exist and can be easily installed with yum. Unfortunately, ownCloud’s storage mechanism is rather slow compared to other private cloud solution like Seafile or SparkleShare. However the overall speed can be improved greatly by switching from the most obvious and most popular… Read more »
One of the great advantages of using OpenVPN with RSA keys instaed of static keys is the fact that you can easily disable access to the server for a specific client without the need to re-create keys for any other client. This is called revoking of client certificates. Since every single client’s certificate is verified against a Certificate Revoking List… Read more »
Beside the official OpenVPN documentation there’s a vast number of howtos and guides out there, that’ll tell you how to set up an OpenVPN server. Unfortunately, most of these use a tunneling setup including some sort of router and packet filter. If you want to transport non-IP based traffic and can accept the increased broadcast overhead and poor scalability, you… Read more »
If you run into this error: the culprit is simply the missing netstat program on the target host. sshuttle tries to fork a netstat process without checking if netstat is installed on the target host in the first place. On a Fedora host netstat comes with the net-tools package:
OpenERP is a free an open-source enterprise resource planning (ERP) software. It’s written in Python and makes heavy use of JavaScript and XML and runs completely in that runs in your browser.
OpenProject is an open source project management software. It’s a web-based system that runs in your browser and is built on Ruby on Rails. What makes it really worth-wile is a wide set of features and plugins and a very active and always helpful community.