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-rw-r--r--simple_firewall.rules11
1 files changed, 11 insertions, 0 deletions
diff --git a/simple_firewall.rules b/simple_firewall.rules
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+++ b/simple_firewall.rules
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+*filter
+:INPUT DROP [0:0]
+:FORWARD DROP [0:0]
+:OUTPUT ACCEPT [0:0]
+-A INPUT -p icmp -j ACCEPT
+-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
+-A INPUT -i lo -j ACCEPT
+-A INPUT -p tcp -j REJECT --reject-with tcp-reset
+-A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
+-A INPUT -j REJECT --reject-with icmp-proto-unreachable
+COMMIT