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Today you find a solution when you face broken network streams between multiple site-to-site VPN’s. Environment Three locations Three Ubiquiti USG Three static IP’s Behind the scene Below you see the chart from my whiteboard to solve the problem. During debugging I figured out that the L2TP does not have any performance issues. The ppp0 interface had a MTU of 1280 after the connection was established. Beside the different MTU […]

If your Windows Calculator crashes with Event ID 1000 and you find the error below in your Eventlog, here is the solution. Solution Open Apps & Features in the Windows settings Search for the calculator Open the advanced settings Reset the settings for the calculator Now you can use the calculator again.

Today I set up a new oVirt Cluster based on the oVirt Node 4.4 and a Gluster installation. The cockpit installation looked nice but failed with the following error: TASK [gluster.infra/roles/backend_setup : Record for missing devices for phase 2] *** skipping: [<SERVERNAME>] => (item={‘cmd’: ‘ test -b /dev/sdb && echo "1" || echo "0"; n’, ‘stdout’: ‘1’, ‘stderr’: ”, ‘rc’: 0, ‘start’: ‘2021-01-23 16:17:42.264991’, ‘end’: ‘2021-01-23 16:17:42.269580’, ‘delta’: ‘0:00:00.004589’, ‘changed’:

Problem Can not establish connection to UniFi VPN with L2TP Detail ssh to the USG sudo tail -f /var/log/freeradius/radius.log … Mon Jan 4 08:21:35 2021 : Error: Ignoring request to authentication address * port 1812 from unknown client port 37109 … Environment USG-3P UniFi Controller 6.0.43.0 Solution After a long try and error, search and fail and so on I found a little strange but working solution. Open the Radius

Here you find a easy solution to use a HP LaserJet 2100TN with an JetDirect 600N extension to use as network printer. The LaserJet 2100TN from 1999 is still in use and works with latest macOS Update in 2020. Here you see a screenshot of the printer settings .. yes thats all 🙂

To establish a site-to-site VPN connection the remote site has to initiate a connection to the main subnet. Normally this is a good idea to bring up the connection but sometimes there is connection starting from the remote site. For example if you have on the remote site surveilance cameras system which has to connect to the main site it is not possible to initiate a VPN connection from the