RHEL

Setting up from scratch on a VM at work

Web services

Install NGINX

$ sudo yum install yum-utils

Create /etc/yum.repos.d/nginx.repo

[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

Install nginx

$ sudo yum install nginx

Install EPEL repo

$ sudo subscription-manager repos --enable rhel-7-server-optional-rpms --enable rhel-7-server-extras-rpms
$ cd /tmp
$ wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
$ sudo yum install epel-release-latest-7.noarch.rpm

Useful commands

Package management

Clean up cache for yum PM

$ sudo service rhsmcertd restart
$ sudo subscription-manager refresh
$ sudo yum clean all && yum rm -rf /var/cache/yum && yum makecache

List all subscriptions

$ sudo subscription-manager list --all --available | more

Install downloaded RPM package

$ sudo yum -y localinstall ~/Downloads/screen

Check if there are any disabled repositories

$ egrep -Hi '(^\[|^enabled)' /etc/yum.repos.d/*
/etc/yum.repos.d/epel.repo.rpmsave:[epel]
/etc/yum.repos.d/epel.repo.rpmsave:enabled=1
/etc/yum.repos.d/epel.repo.rpmsave:[epel-debuginfo]
/etc/yum.repos.d/epel.repo.rpmsave:enabled=0
/etc/yum.repos.d/epel.repo.rpmsave:[epel-source]
/etc/yum.repos.d/epel.repo.rpmsave:enabled=0
/etc/yum.repos.d/nginx.repo:[nginx-stable]
/etc/yum.repos.d/nginx.repo:enabled=1
/etc/yum.repos.d/nginx.repo:[nginx-mainline]
/etc/yum.repos.d/nginx.repo:enabled=1
...