3D Printer

OlyNet now has its’ own 3D printer!

Further details on the printer and our 3D printer projects will follow soon..

Posted in General, News

WLAN security gap KRACK

A vulnerability affecting all wireless networks was discovered recently. The vulnerability was found in the encryption protocol WPA2, which is the standard encryption protocol used in wireless LAN networks. This is also why this vulnerabilty affects almost any WLAN device (Smartphones, IoT-Devices, Laptops, Personal Computers, etc.) and operating system (iOS, Windows, Linux, Android, etc.). The vulnerability enables a third person to read the wireless communication in plain text, although this communication appears to be encrypted. This implies: unless you are using other security mechanisms (such as HTTPS or VPN while surfing), your data transmitted through a WLAN network may be intercepted and read by a third person.


The manufacturers are currently working on security patches for their systems. It is of utmost importance to check for these updates and install them. Many devices are configured to check for these updates automatically.


We recommend:

– Check for security updates and/or make sure that these are being installed automatically
– If updates were installed, reboot your device
– Use a VPN if you are transferring sensitive data
– When transmitting sensitive data through your browser make sure that your connection is encrypted by additional means (“Https” or the lock icon appear in your address bar)
– However, do *NOT* change the WLAN encryption to an older standard such as WPA oder WEP as these are insecure.

If you have questions or issues please do not hesitate to contact us during our opening hours or per e-mail.

Posted in General, News

New router price

Due to lower purchase prices we can now offer you fully-equipped routers for the new price of 30 Euro, starting this new academic term Fall 2017/18.


Just come and visit us during our consulting hours!

Posted in General, News

Newbie in our server cluster

May I introduce: *drum roll*….

Our newest server member is a nice little 1U machine manufactured by HP, a ProLiant SE316M1. This third VM host adds to our web cluster and will host various virtual machines, for instance a third database machine.

When we will incorporate the server into our rack, we are planning a major rebuild and restructuring of the rack and all components. We also want to set the course for our infrastructure to handle all the load and be more reliable in the future.

Especially our OlydorfApp, which will reach a beta phase in the upcoming weeks, will benefit from this update. Since OlyNet is a non-profit organization run by students only, there is not a lot of money for new infrastructure or hardware. That’s why we decided a while ago that we will utilize refurbished hardware, which we can afford. But as these systems show a higher risk of failing, we are trying to build redundancies everywhere.

Some day, we will describe the environment composing our web cluster in more detail in a separate article. Until then, you may already experience our infrastructure by using our app.

Posted in General, News

News concerning the Android app

As most of you already know, we have been planning to release smartphone apps containing content from different organizations of the Olydorf for a long time. We are happy to announce that in the last few months we have made great progress in implementing both the server-side application as well as the Android version of the app! For the app’s first version, it will serve basic information and up-to-date news from the OlyNet and certain establishments belonging to the Studenten im Olympiazentrum e.V. (e.g. the Bierstube). Furthermore, it will contain the current menu of the Bierstube (including the daily meal) as well as a list of daily meals for the remaining month. Additional features (e.g. other establishments, events, …) will continuously be added in the future.

The beta version of the OlydorfApp for Android will likely be released towards the end of the semester break (i.e. in september). Please note that this date can be pushed back if we run into unforseen problems. If you are interested in helping with this first test run, please send us a non-binding email at app@olynet.eu and include the address of your Google account. The latter is necessary for us to be able to grant you access to the test version of the app after its release within the Play Store.

We are, of course, also planning to release an app for iOS. There is, however, no schedule for it, yet. If you want to change that and help us develop the app, please contact us in one of our consultation hours or send an email to joinus@olynet.eu.

Posted in General, Projects