The Netgroup hires (Danish proficiency necessary)!

Sunday 27 December 2015, 21:30

Sorry, this content is only available in the following languages: Danish

Fluctuating internet connection this weekend

Sunday 12 April 2015, 17:55

K-Net’s DNS server seems to have experienced some problems this weekend.
We’ve had two reported downtime periods (12/4 18:18 – 18:28 & 11/4 13:42 – 15:02).
We haven’t heard anything from K-Net Drift, so we expect it to be two minor and non-recurring problems.
When K-Net’s DNS is down, you can gain internet service again by merely switching to e.g. Google’s DNS servers (8.8.8.8 & 8.8.4.4) or any other open free DNS service (a couple of links with guides were posted in a thread on the dorm’s facebook group).

Internet problems currently

Thursday 15 November 2012, 16:15

Sorry, this content is only available in the following languages: Danish

Network maintenance – Update 2

Thursday 20 October 2011, 20:30

As many noticed, K-Net had trouble and the internet was down until 11 PM instead of 5 PM last Monday. They apologize.

Tomorrow Friday at around 3 PM there will be another interruption. This time a lot shorter they say. They estimate it to be around 30 minutes.

Sincerely,
The network group at Nybrogård Kollegiet

Network maintenance in the autumn break

Friday 14 October 2011, 13:14

During the Autumn break you will experience downtime due to maintenance on our network infrastructure located here at the dormitory and at K-Net as well. We are upgrading our network equipment so that the K-net Utilliy will become obsolete.

Specifically Monday 17th from 12 noon to 5 PM K-Net has announced that they will be changing core equipment and the internet connection will be unavailable. During the next days until Thursday K-Nets website might be unavailable in periods, and mails sent to @nybro.dk and @k-net.dk addresses might be delayed in periods.

This upgrade will also affect the Wireless Network.

We will do our best to keep you updated on www.nybro.dk/for-beboere/nyheder

For the technically interested, the work during this upgrade is the following:

We will reconfigure our network switches so that each room plug on the wired network has its own VLAN. This will enable K-Net to do the traffic counting and by law required traffic logging without the K-Net Utility. We will be changing the main switch to support this.

K-Net will set up a new firewall which will take over from FW2 with settings for the new VLAN setup. K-Net will setup new switches and two new servers (DNS, mail, management, etc.) to work together with the new firewall. They will also be changing rack closets.

The wireless network and kitchen computers will remain with the old system with the K-Net Utility and FW2 a little longer, but will also eventually be free from the K-Net Utility. We will be changing at least one switch in each block to support this, but we do not expect that the new switches can be delivered in the autumn holidays.

While not being 100% certain yet, as it has not yet been approved by the board of K-Net, the idea is that the traffic limit will be much higher than now, and will be more “soft”. If you exceed the traffic limit you will have limited internet speed instead of being blocked completely. It is also planned that it should be possible to choose to have your incoming ports open.

Because the wireless network and the kitchen computers will be running on the old system for at while longer, the old traffic limit will still be in place there.

Sincerely,

The network group at Nybrogård Kollegiet.

K-net problems

Thursday 09 June 2011, 21:24

K-net have problems during the evening, because of the heavy usage.
This is of cause not how it should be, and K-net is working on a solution that hopefully will work after the summer holidays.

The last week there has been no accounting of traffic. This was to see the effect on the server load. Unfortunately this only helped for a couple of days. The accounting will be reenabled tomorrow morning around 08.30.

Best regards
Mads Pedersen
The Chairman of K-net

Problems with login into K-net Firewall

Tuesday 07 June 2011, 15:37

As many has noticed it can be a hard time to log on to K-nets firewall (fw2) doing the time interval from 16-23, especially Saturdays and Sundays.

The problem is not at Nybrogård dormitory but at the firewall server at DTU.
The server cannot handle the pressure of the many user logins on doing this time period, due to lack of memory.

Personnel at K-net are aware of the problem and didn’t want to disturb the examperiod. Also they are voluntary and don’t get paid for their work, therefore they have not had the time to get the work to be done.

Within the next period of time K-net will work on a new system or an upgrade of the exiting system. Until then you have to be patient.

The more technical term for the lack of memory in the server: Every time a user logs on, a small amount of memory are reserved for that user and when the server reach about 1500 simultaneous users it runs out of memory and all CPU power are used for interrupts and errorhandling therefore the users able to login will notice it takes some time, others see a connection timed out for both servers.

I hope this will clean things a bit.

If you need to address the anything about the problem you should go the the K-net forum (http://www.k-net.dk/tiki-forums.php)

Mikkel, the Netgroup

Upgrade of Wireless Network

Tuesday 07 December 2010, 13:58

English version will be updated later today

NykTV is online again

Tuesday 07 December 2010, 13:45

Now NykTV is online again after some time with downtime, the cause was an unexpected hardware failure.

We apologize  if it happens again, since the hardware running NykTV is very old and we are working something new to exchange the old hardware completely.

Internet connection NO-block and O-appartments up again!

Thursday 11 November 2010, 03:03

Short english: the network on NO block and O-appartments is now working again.