diff options
Diffstat (limited to 'extensions/libxt_tcp.txlate')
| -rw-r--r-- | extensions/libxt_tcp.txlate | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/extensions/libxt_tcp.txlate b/extensions/libxt_tcp.txlate index 921d4af0..b3ddcc15 100644 --- a/extensions/libxt_tcp.txlate +++ b/extensions/libxt_tcp.txlate @@ -1,26 +1,38 @@ iptables-translate -A INPUT -p tcp -i eth0 --sport 53 -j ACCEPT -nft add rule ip filter INPUT iifname "eth0" tcp sport 53 counter accept +nft 'add rule ip filter INPUT iifname "eth0" tcp sport 53 counter accept' iptables-translate -A OUTPUT -p tcp -o eth0 --dport 53:66 -j DROP -nft add rule ip filter OUTPUT oifname "eth0" tcp dport 53-66 counter drop +nft 'add rule ip filter OUTPUT oifname "eth0" tcp dport 53-66 counter drop' iptables-translate -I OUTPUT -p tcp -d 8.8.8.8 -j ACCEPT -nft insert rule ip filter OUTPUT ip protocol tcp ip daddr 8.8.8.8 counter accept +nft 'insert rule ip filter OUTPUT ip protocol tcp ip daddr 8.8.8.8 counter accept' iptables-translate -I OUTPUT -p tcp --dport 1020:1023 --sport 53 -j ACCEPT -nft insert rule ip filter OUTPUT tcp sport 53 tcp dport 1020-1023 counter accept +nft 'insert rule ip filter OUTPUT tcp sport 53 tcp dport 1020-1023 counter accept' iptables -A INPUT -p tcp --tcp-flags ACK,FIN FIN -j DROP -nft add rule ip filter INPUT tcp flags fin / fin,ack counter drop +nft 'add rule ip filter INPUT tcp flags fin / fin,ack counter drop' iptables-translate -A INPUT -p tcp --syn -j ACCEPT -nft add rule ip filter INPUT tcp flags syn / fin,syn,rst,ack counter accept +nft 'add rule ip filter INPUT tcp flags syn / fin,syn,rst,ack counter accept' iptables-translate -A INPUT -p tcp --syn --dport 80 -j ACCEPT -nft add rule ip filter INPUT tcp dport 80 tcp flags syn / fin,syn,rst,ack counter accept +nft 'add rule ip filter INPUT tcp dport 80 tcp flags syn / fin,syn,rst,ack counter accept' iptables-translate -A INPUT -f -p tcp -nft add rule ip filter INPUT ip frag-off & 0x1fff != 0 ip protocol tcp counter +nft 'add rule ip filter INPUT ip frag-off & 0x1fff != 0 ip protocol tcp counter' iptables-translate -A INPUT ! -f -p tcp --dport 22 -nft add rule ip filter INPUT ip frag-off & 0x1fff 0 tcp dport 22 counter +nft 'add rule ip filter INPUT ip frag-off & 0x1fff 0 tcp dport 22 counter' + +iptables-translate -A INPUT -p tcp --tcp-option 23 +nft 'add rule ip filter INPUT tcp option 23 exists counter' + +iptables-translate -A INPUT -p tcp ! --tcp-option 23 +nft 'add rule ip filter INPUT tcp option 23 missing counter' + +iptables-translate -I OUTPUT -p tcp --sport 0:65535 -j ACCEPT +nft 'insert rule ip filter OUTPUT meta l4proto tcp counter accept' + +iptables-translate -I OUTPUT -p tcp ! --sport 0:65535 -j ACCEPT +nft 'insert rule ip filter OUTPUT tcp sport != 0-65535 counter accept' |