I have to use a pretty outdated, and no longer supported VPN client on my Fedora 23 install. This client to be specific.
The following compatibility packages are required to be able to run it.
sudo dnf install compat-libstdc++-33.i686\ pam.i686\ glibc.i686\ libX11.i686
Hi, if you want, you can add the command setenforce 0.
In my case snx didn’t work at all, because SELinux locked the connections.
After command setenforce 0 from root, snx works well.
Good luck!