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Add the "!" to the nft rule checking

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平民·寻梦 (Pingmin Fenlly Liu) 2018-06-04 10:33:14 +08:00 committed by GitHub
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security/firewall.md
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@ -384,7 +384,7 @@ fi
# In Qubes OS R4
# If not already present
if nft -nn list table ip qubes-firewall | grep "tcp dport 443 ct state new"; then
if ! nft -nn list table ip qubes-firewall | grep "tcp dport 443 ct state new"; then
# Add a filtering rule
nft add rule ip qubes-firewall forward meta iifname eth0 ip saddr 192.168.x.0/24 ip daddr 10.137.0.y tcp dport 443 ct state new counter accept