Add some useful external repositories to install useful softwares.
1 – Add EPEL that Fedora project provides packages which are specially built for RHEL.
⇒ https://fedoraproject.org/wiki/EPEL
[root@dlp ~]# dnf -y install epel-release [root@dlp ~]# vi /etc/yum.repos.d/epel.repo [epel] name=Extra Packages for Enterprise Linux $releasever - $basearch baseurl=https://download.fedoraproject.org/pub/epel/$releasever/Everything/$basearch metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-$releasever&arch=$basearch&infra=$infra&content=$contentdir failovermethod=priority [enabled=1] = repository enabled, [enabled=0] = repository disabled enabled=1 to add [priority=*], it can set priority to repository it can specify [1-99], [1] is highest, default without the line is [99] priority=10 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$releasever ….. ….. if disabling with [enabled=0] regulary but want to enable it temporary, run like follows [root@dlp ~]# dnf --enablerepo=epel install [packages]