mirror of
https://github.com/MinecraftServerControl/mscs.git
synced 2024-11-15 14:58:18 -07:00
39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
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*filter
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:INPUT DROP [0:0]
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:FORWARD DROP [0:0]
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:OUTPUT DROP [0:0]
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# Handle loopback addresses
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-A INPUT -i lo -j ACCEPT
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-A OUTPUT -o lo -j ACCEPT
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# Allow outbound packets if state related, and inbound if established
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-A OUTPUT -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
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-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
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# Drop stealth scans
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags SYN,FIN SYN,FIN
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags SYN,RST SYN,RST
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags FIN,RST FIN,RST
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags ACK,FIN FIN
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-A INPUT -i eth0 -p tcp -m tcp --tcp-flags ACK,URG URG
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# Allow ICMP pings
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-A OUTPUT -p icmp -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
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-A INPUT -p icmp -m state --state ESTABLISHED,RELATED -j ACCEPT
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# Allow port 22 for SSH
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-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
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# Allow port 80 for HTTP
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-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
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# Allow port 443 for HTTPS
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-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
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# Allow ports 25565 - 25575 for Minecraft world servers
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-A INPUT -m state --state NEW -m tcp -p tcp --dport 25565:25575 -j ACCEPT
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COMMIT
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