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?
ow 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?
y 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?
ow 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?
am a new Linux sysadmin. How can I add comments to iptables rules on Linux using the iptables command?
want to insert the iptables rule at the top of given tables such as filter table INPUT chain. How do I prepend iptables rules at the top of a filter table on Linux operating system?
need to specific multiple IP address in iptables using Linux script. How do I create a rule that uses multiple source or destination IP addresses ?