pam_tacplus consists of the module code and `libtac' simple TACPLUS+ library. Simple `./configure' followed by `make' should compile both TACACS+ library and pam_tacplus module. If there is no ./configure create one with autotools: $ aclocal $ autoconf $ autoheader $ automake --add-missing You should get a `pam_tacplus.so' module, which is placed in /usr/local/lib/. Move it to the right security dir, normally /lib/security/. Modify `sample.pam' and install it in /etc/pam.d under name of the proper service. This code is known to work on Linux, Solaris and AIX for now. Dec 22 2010 Jeroen Nijhof Pawel Krawczyk