Hi Tony, Have you solved this problem yet?I took another approach and used CACkey which supportsUS Government PIV cards including the CAC. In my case I set it up on Linux Mint but there is an rpm version of CACKey for 32 or 64 bit Centos.Here is the process I went through. - setup CAC card by following instructions on: https://help.ubuntu.com/community/CommonAccessCard sudo apt-get install libpcsclite1 pcscd pcsc-tools - download CACkey from https://cackey.rkeene.org/fossil/index sudo dpkg -i cackey_0.7.5-1_amd64.deb The above command failed with: "dpkg: error processing archive cackey_0.7.5-1_amd64.deb (--install): unable to create '/libcackey.so.dpkg-new' (while processing './usr/lib64/libcackey.so'): No such file or directory dpkg-deb: error: paste subprocess was killed by signal (Broken pipe) Errors were encountered while processing: cackey_0.7.5-1_amd64.deb" - as root I created the directory /usr/lib64 and ran the command again!!!!!!It Worked!!!!!!! - ran command pcsc_scan and it found my CAC - had to manually install the DoD root certificates - certificates were manually installed one at a time for both Thunderbird and Firefox It turned out to be much easier than I thought it would to get my PIV working on a Linux machine. Hope that helps.Ed On Thursday, April 2, 2020, 1:37:32 PM EDT, Tony Schreiner <anthony.schreiner at bc.edu> wrote: On Thu, Apr 2, 2020 at 12:47 PM Tony Schreiner <anthony.schreiner at bc.edu> wrote: > CentOS 7, In firefox -> privacy & security -> certificates -> security > devices > i am trying to load the pkcs11 modules, but get the error unable to load. > > I am following the directions at > https://piv.idmanagement.gov/engineering/firefox/ > > I have installed opensc and openssl-pkcs11, which > contains /usr/lib64/openssl/engines/pkcs11.so > and am using that is the module > > Has anybody here done that, and can offer advice? > Answering myself, though not completely solved. I should have instead been loading /usr/lib64/opensc-pksc11.so _______________________________________________ CentOS mailing list CentOS at centos.org https://lists.centos.org/mailman/listinfo/centos