Server Maintenance (RHEL, pew)

Update and Upgrade software:

$ sudo yum update

$ sudo yum upgrade

OR, use the below is you can’t be arsed to review and accept changes (not recommended):

$ sudo yum -y update && yum -y upgrade

Check services are running – all should be active (running) and enabled to start on boot:

$ service httpd status
$ service mariadb status
$ service firewalld status

List all zones:

$ sudo firewall-cmd –permanent –zone=public –list-all

RHEL7: How to get started with Firewalld.