I am trying to do :
~/mininet/util/./install.sh -3f and it is not installing properly since the link for downloading netbee is not existing.

Expected/Desired Behavior:

netbee should be available on the given link.

Actual Behavior:

Setting up bison (2:3.0.2.dfsg-2) ...
--2017-06-23 20:36:52-- http://www.nbee.org/download/nbeesrc-feb-24-2015.zip
Resolving www.nbee.org (www.nbee.org)... 130.192.225.79
Connecting to www.nbee.org (www.nbee.org)|130.192.225.79|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2017-06-23 20:36:53 ERROR 404: Not Found.

so I tried to connect to the link and it seems like it is broken: