Univention Corporate Server (UCS) and Univention Corporate Server @ school (UCS@school) are Debian derivatives, i.e. operating systems derived from the Linux distribution Debian GNU/Linux. So, what exactly is Linux, what is a Linux distribution, and what does derivative mean? Read on to find out more about these terms and the connection between UCS and Debian GNU/Linux.
Policies can, for example, be used to specify a minimum length or to require users to change passwords regularly. In addition, Univention Corporate Server provides a quality check that forces the use of a certain number of numbers, special characters, uppercase and lowercase letters in passwords. This article presents some tips and tricks for setting up a good password policy in an UCS domain. We also show what variables can be set in the Univention Configuration Registry to optimize the whole thing. If you are using Samba in your environment, this article will also explain how to adjust the password requirements for the Samba domain object to those of the new policy.
Web Proxy and “Shalla List” for Access Rules to External Websites and Higher Performance at the Same Time
The web proxy, which is a central component of UCS@School, is used to improve performance and control data traffic. In this blog article I’ll show you how to configure Squid Proxy with SquidGuard and how to combine both with existing (youth protection) website filters. And with the “Shalla-List-Downloader” I would like to present you a Cool Solution, with which you can further round off this protection and which we have already successfully implemented in various school projects.
More Services, More Space, Less Downtime?
Anyone operating IT services for companies or organisations will sooner or later be confronted with this: everything is growing, you need more space for data and virtual machines, at the same time the demands for the availability of services are increasing and the hardware servers also need to be maintained.
Classic solutions for available storage such as NAS (Network Attached Storage) and SAN (Storage Area Network) systems are often expensive and just as often proprietary – and therefore not necessarily the basis you want to build your own IT infrastructure on as part of an open source strategy.
I assume in the HowTo that a functional UCS Master already exists. I run this virtualized using Proxmox. I use a second VM for the terminal server environment.
The following steps are described in detail in this HowTo:
- Prepare LinuxMint with xRDP
- Installing and configuring privacyIDEA and RADIUS on the UCS Master
- Integrate xRDP with privacyIDEA
- Install and configure Guacamole with RADIUS Plugin
Video Tutorial: Integrating Ubuntu Clients into the UCS Domain with Univention Domain Join Assistant
PPD files (PostScript Printer Description) describe the technical capabilities of the printers. These files contain information about the printers’ features, i.e. whether it’s a color device, whether duplex printing is possible, which paper trays are available, which resolutions and which printer command languages are supported (e.g. PCL or PostScript). UCS provides a variety of PPD files, so most printers can be accessed and configured without having to install additional drivers. If you have to set up extra PPD files, please have a look at our manual.