This article describes the installation of GnuCash on Ubuntu 15.10 in combination with online banking.
apt-get install gnucash
In this test it installs the version 1:2.6.6-2ubuntu2 which was quite recent at the time this article was written (official latest version was 2.6.10).
cd /tmp wget http://support.reiner-sct.de/downloads/LINUX/V3.99.5_SP08/libifd-cyberjack6_3.99.5final.sp08_amd64_u1510.deb sha1sum libifd-cyberjack6_3.99.5final.sp08_amd64_u1510.deb
If the hashes match you can install the downloaded driver with
dpkg -i libifd-cyberjack6_3.99.5final.sp08_amd64_u1510.deb
Prepare to test the card reader: