mirror of
https://github.com/netblue30/firejail.git
synced 2026-05-15 14:16:14 -06:00
37 lines
1 KiB
Text
37 lines
1 KiB
Text
*filter
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:INPUT DROP [0:0]
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:FORWARD DROP [0:0]
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:OUTPUT ACCEPT [0:0]
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###################################################################
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# Client filter rejecting local network traffic, with the exception of
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# DNS traffic
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#
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# Usage:
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# firejail --net=eth0 --netfilter=/etc/firejail/nolocal.net firefox
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#
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###################################################################
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#allow all loopback traffic
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-A INPUT -i lo -j ACCEPT
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# no incoming connections
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-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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# allow ping etc.
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-A INPUT -p icmp --icmp-type destination-unreachable -j ACCEPT
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-A INPUT -p icmp --icmp-type echo-request -j ACCEPT
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-A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
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# accept dns requests going out to a server on the local network
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-A OUTPUT -p udp --dport 53 -j ACCEPT
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# drop all local network traffic
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-A OUTPUT -d 192.168.0.0/16 -j DROP
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-A OUTPUT -d 10.0.0.0/8 -j DROP
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-A OUTPUT -d 172.16.0.0/12 -j DROP
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-A OUTPUT -d 169.254.0.0/16 -j DROP
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# drop multicast traffic
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-A OUTPUT -d 224.0.0.0/4 -j DROP
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COMMIT
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