修改 SYN+ACK 报文的窗口大小过移动墙

https://v2ex.com/t/921220

未实验

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#!/usr/sbin/nft -f

# 清空所有规则
flush ruleset

# 定义表
add table ip filter

# 定义链
add chain ip filter OUTPUT { type filter hook output priority 0; policy accept; }

# 添加规则修改 SYN+ACK 报文的窗口大小
add rule ip filter OUTPUT \
tcp flags & (syn|ack) == (syn|ack) \
tcp option window set 8192 \
comment "Modify TCP window size for SYN+ACK packets"