IT-OS-Admin-Linux

Kostenlose Kurse

• RHEL: https://www.redhat.com/en/services/training/rh024-red-hat-linux-technical-overview

Setting Firewall

sudo firewall-cmd --get-zones
sudo firewall-cmd --get-active-zones
sudo firewall-cmd --get-default-zone
sudo firewall-cmd --get-services
sudo firewall-cmd --list-all
sudo firewall-cmd --list-ports

Zone-home

sudo firewall-cmd --zone=home --list-all
sudo firewall-cmd --zone=home --list-ports
sudo firewall-cmd --zone=home --list-services

Setting

sudo firewall-cmd --set-default-zone=home
sudo firewall-cmd --zone=home --change-interface=eth0
sudo firewall-cmd --zone=home --add-service=http
sudo firewall-cmd --zone=home --add-port=80/tcp --permanent

New Zone "boxblue"

sudo firewall-cmd --permanent --new-zone=boxblue
sudo firewall-cmd --permanent --zone=boxblue --add-service=ssh
sudo firewall-cmd --permanent --zone=boxblue --add-service=http
sudo firewall-cmd --permanent --zone=boxblue --add-service=https
sudo firewall-cmd --permanent --zone=boxblue --add-port=80/tcp
sudo firewall-cmd --permanent --zone=boxblue --add-port=22/tcp
sudo firewall-cmd --permanent --zone=boxblue --change-interface=wlp0s19f2u1
sudo firewall-cmd --permanent --set-default-zone=boxblue

Update

sudo firewall-cmd --reload
sudo systemctl restart network
sudo systemctl reload firewalld