app/dns: failed to retrieve response > Post "https://dns.cloudflare.com/dns-query":

[adahrzgj]

same issue solved by

代码:

Code:

iptables -A OUTPUT  -p udp --dport 53 -j ACCEPT
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A INPUT -m state --state INVALID -j DROP