If you are a newbie on iptables, please go through this guide to get a better idea on Linux iptables. This will help you to get an idea about the basics of iptables in Linux. What is iptables in Linux? Introduction to iptables! Command to list existing/current rules in iptables.
25 Useful IPtable Firewall Rules Every Linux Administrator Start/Stop/Restart Iptables Firewall. First, you should know how to manage iptables service in … iptables rules to allow HTTP traffic to one domain only iptables -A OUTPUT -p tcp -d serverfault.com --dport 80 -j ACCEPT. I get this error: iptables v1.4.4: host/network `serverfault.com' not found Try `iptables -h' or 'iptables --help' for more information. Do you think it is related to DNS? Should I allow it as well? Or should I just put IP addresses in the rules? iptables help on Linux server - LinuxQuestions.org Jan 27, 2008
Sep 26, 2018
I have problem with iptables on Ubuntu 18.04 before that I used to use with Centos 7 and Red Hat and I can simply restart with. systemctl restart iptables but on Ubuntu it does not work. I could not find iptable under init.d neither. Can anybody help me out how can I restart or reload it on Ubuntu 18.04? How to configure iptables on CentOS - UpCloud
How to save/backup existing iptables rules to a file
iptables help! | Tech Support Guy Feb 19, 2010 A little iptables help for Guest Access