Below we will install missing video and audio plugins such us MPEG-4, MP3 on Fedora linux. First enable free and nonfree package repository on your system RPMFusion on your system:
# yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-20.noarch.rpm
# yum localinstall --nogpgcheck http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-20.noarch.rpm
The above packages are for Fedora 21 Linux so check RPMFusion website to update the above links so they math your Fedora Linux system. Once you have run the above commands you need to update repository index:
# yum update

To create a Fedora Linux Live bootable USB key you will need Fedora Linux ISO image and some sort of USB key with disk size higher than the actual ISO image size. Currently, the size of Fedora 21 Live image is 1.3GB:
# ls -lh /home/lrendek/Downloads/Fedora-Live-Workstation-i686-21-5.iso
-rw-rw-r--. 1 lrendek lrendek 1.3G Dec  4 08:38 Fedora-Live-Workstation-i686-21-5.iso

SSH server may not be installed by default on your Fedora Linux box. Therefore, any attempt to connect to your box via ssh my result in:
ssh: connect to host HOST/IP port 22: Connection refused
Error message. In order to be able to connect to our FEDORA linux box using ssh we first need to install it using yum command.
# yum install openssh-server

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