This tutorial will guide you to set up a basic firewall with Uncomplicated Firewall (UFW) on Ubuntu 20.04 / 18.04 UFW is an interface to iptables that is designed to simplify the process of configuring a firewall and it is used to allow connections to specified services.
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Follow the link below to copy the commands which were mentioned in the video.
Link to refer: https://bishrulhaq.com/tutorials/crea...
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