DOSEMU2 is a virtual machine that allows you to run DOS software under linux.
Binary packages for ubuntu are available here:
https://code.launchpad.net/~dosemu2/+archive/ubuntu/ppa
Binary packages for fedora are here:
https://copr.fedorainfracloud.org/coprs/stsp/dosemu2
Please send bug reports to
https://github.com/dosemu2/dosemu2/issues