2015-04-16 fedora 21 Fedora 21 1. su - 2. rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-x86_64-1.0-1.noarch.rpm rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux 3. yum check-update 4. yum install flash-plugin nspluginwrapper alsa-plugins-pulseaudio libcurl http://www.if-not-true-then-false.com/2010/install-adobe-flash-player-10-on-fedora-centos-red-hat-rhel/