Simple desktop firewall linux


Simple desktop firewall linux

minimal iptables rules to allow only output connections in local machine
iptables -P INPUT DROP
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT
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How to list open ports and application using them in Windows

  netstat -abn or netstat -a -n -p tcp -o

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