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Thursday, September 3, 2015

Weak Diffie-Hellman Key Browser Error

Over the past few days, people have been getting the following message when trying to log into their Unifi Video Controller:


Ubiquiti is aware of this issue and there is a fix in the new version of the software.
In the mean time, there is a fix as follows:


For our hardware NVR or any other Linux based installation, please SSH in to the UniFi-Video server and do the following as root (each line represents a single command):
cd /usr/lib/unifi-video/conf/
service unifi-video stop
mv server.xml server.orig
wget http://community.ubnt.com/ubnt/attachments/ubnt/airVision_board/44302/1/server.txt
mv server.txt server.xml
chown unifi-video:unifi-video server.xml
service unifi-video start

For a Windows based installation, please:
  1. Stop the UniFi-Video service via the icon in the notification area
  2. Go to C:\ProgramData\unifi-video\conf
  3. Copy the server.xml file to server.orig
  4. Delete server.xml
  5. Download the file from here to C:\ProgramData\unifi-video\conf
  6. Rename the file to server.xml
  7. Start the UniFi-Video service via the icon in the notification area

Once the service is restarted, you should be able to reload the page and get the normal certificate warning page.


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