I have had problems installing my eagle license for 6.6.0 on new Ubuntu versions for a while and have been forces to run it on my Windows machine (yes I have a license).
I found this link and it is halfway working. Superb work btw. But I still get a complaint about eagle not finding libssl1.0.0
I today found that the solution to this problem is to install libssl1.0.0_1.0.2n-1ubuntu5.3_i386.deb from here. Pretty obvious maybe. Now everything works as expected again.
Posted here in case someone else have the same problem and want to save a minute or two.
edit:
This may also be needed onm later Ubuntu versions
apt-get install libxrender1:i386 libxtst6:i386 libxi6:i386