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GRAVITL

Any ideas why the following rules breaks DNS response from external hosts?

`iptables -A INPUT -m comment -m conntrack --ctstate ESTABLISHED,RELATED,UNTRACKED -j ACCEPT --comment "accept established,related,untracked"`
`iptables -A INPUT -m comment -p tcp -m tcp --dport 22 -j ACCEPT --comment "Accept SSH port"`
`iptables -A INPUT -m comment -m conntrack --ctstate INVALID -j DROP --comment "drop invalid"`
`iptables -A INPUT -m comment -p icmp -j ACCEPT --comment "accept ICMP after RAW"`
`iptables -P INPUT DROP`

Both Forward and Output have accept policy as default

Also tried the following
`iptables -A INPUT -m comment -p udp --sport 53 -j ACCEPT --comment "Accept DNS port UDP"`
`iptables -A INPUT -m comment -p tcp --sport 53 -j ACCEPT --comment "Accept DNS port TCP"`