Do I Need A Firewall in Linux
Discussing when a firewall is needed in Linux and I show how to check what services you have open on your system. I also give a quick explanation about computer networking protocols ICMP, TCP, and UDP.
Checking services:
$ ss -nltup
Scanning System:
$ sudo nmap -sS ip
$ sudo nmap -sU -p “udp ports” ip
Tutorial Videos:
Debian nftables: https://youtu.be/_A-Q6yTMX0g
Ubuntu UFW: https://youtu.be/BJNXrV9G3QE
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#Firewall #Linux #Cybersecurity
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