直接进ssh放行udp端口就行
iptables(cetnos6)

iptables -I INPUT -p tcp -m state –state NEW -m udp –dport 80 -j ACCEPT
service iptables save

firewall (centos7)

firewall-cmd –permanent –zone=public 80/udp > /dev/null 2>&1
firewall-cmd –reload

ufw (ubuntu/debian/deepin)

ufw allow 80/udp
ufw reload

https://www.bt.cn/bbs/forum.php?mod=viewthread&tid=8699&highlight=%E9%98%B2%E7%81%AB%E5%A2%99