Advanced usage of yum-config-manager with setopts

Recently I used the yum-config-manager program from the yum-utils package to add a repository in a CentOS-box.

This is the easy part:

# install the yum-config-manager
yum -y install yum-utils

# add the official ansible repository
yum-config-manager --add-repo=https://releases.ansible.com/ansible/rpm/release/epel-7-x86_64/

What gets added in /etc/yum …

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Firewalld blocking snmp and fixing it (with Ansible)

Some time ago I had to use a new CentOS 7 virtual-machine for some things that aren’t relevant to this post. This machine had to run all the time but also had some problems with a sporadically failing application server. That’s why I decided to monitor the machine …

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