I am a new Linux system administrator. I have a hardware-based firewall, so I don’t need a firewall on each server. How do I disable the firewall on Linux?
I am a new OpenSUSE Linux 15.x sysadmin. How do I set up a firewall using FirwallD on OpenSUSE Linux 15.1?
How do I setup a firewall with UFW (uncomplicated firewall) on an Ubuntu Linux 18.04 LTS server to restrict traffic on my personal Ubuntu web-server that hosts my cat’s blog? How do I set up a firewall with UFW on Ubuntu 18.04 LTS?
My Debian/Ubuntu/CentOS Linux server using KVM as a hypervisor. I would like to forward ports to guests VM with UFW iptables. How do I forward ports on a Linux server running libvirt/KVM to specified ports on VM’s, when using NAT?
How do I allow incoming DNS tcp/udp port 53 connections from a specific IP address or subnet on a Ubuntu or Debian Linux server using ufw? How can I open DNS port 53 using ufw firewall?