===== Брандмауэр FirewallD =====

  * [[http://bozza.ru/art-259.html|Настройка firewalld CentOS 7 с примерами команд]]
  * [[:unix-linux:firewalld:centos-7-bash-firewall-cmd-command-not-found|CentOS 7 -bash: firewall-cmd: command not found]]