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Tag: security

UFW: Blocking outgoing connections

Note: This is known to work for a machine acting as masquerading firewall for an entire network. I wanted to block connections to certain outbound ports. After some trial and errors I found something that works Add the following to /etc/ufw/before.rules: -A ufw-before-forward -s <SOURCE IP> ! -d <LOCAL NET>/24 -p tcp -m tcp –dport <DEST PORT> -j DROP it’s as simple as that. Remember to reload all the rules: $ sudo ufw reload

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