We choose Ubuntu 14.04.3 LTS Linux as this is the latest Long Term Supported Ubuntu Linux distribution. Ubuntu is very easy to work with and has all the beauty that every Linux distribution has. What is iptables? Iptables requires elevated privileges to operate and must …

Using IPTables and a whitelist approach is the quickest and easiest ways to accomplish this. 1. Add the following rule for each IP address that you want to whitelist: 1. sudo iptables-A INPUT-p tcp-s YOUR.IP.HERE--dport 22-j ACCEPT. 2. Next, add a rule to block all other IPs: 1. sudo iptables-A How to reset iptables to the default settings - Kernel Talks Sep 28, 2017 iptables - SNMP Access on Ubuntu - Server Fault I am not sure about 8.0.4 ubuntu but in 10+ you have to add . agentAddress udp: Rev2. Firewall Has to be opened also in output. iptables -A OUTPUT -p udp -m udp --sport 161 -j ACCEPT You try to access the system via the internet or same network

Dec 05, 2018

IptablesHowTo - Community Help Wiki - Ubuntu Apr 11, 2020 How To Configure iptables Firewall In Linux - LinuxAndUbuntu Dec 07, 2019

iptables - UFW: what exactly is it? - Ask Ubuntu

If you're running Ubuntu then you should have firewalld which is an interface for iptables. It automatically comes with a Samba service that you can allow. Personally, I use a rich rule to allow Samba from only one specific IP address that I want allowed in like this: firewall-cmd --zone=public --add-rich-rule='rule family=ipv4 source address How To Install nftables In Ubuntu | Liquid Web Oct 25, 2019 Quick Minimal Firewall on Ubuntu With Iptables Quick Minimal Firewall on Ubuntu With Iptables. Let's create a minimal set of iptables rules and a two-liner script that can restore the rules on restart.. To stay minimal, we are going to use iptables directly, instead of the Uncomplicated Firewall (ufw) tool that comes bundled with Ubuntu.