Are DNS server responses categorized as "ESTABLISHED" by iptables? If so, why?
69394
Iptables: "-p udp --state ESTABLISHED"
151476
postfix doesn't work after iptables set up
81519
Iptables rules with ! character
30956
Command-line to list DNS servers used by my system
55771
Linux iptables rejected - How do I enable it back?
8224
What should the order of DNS servers be for an AD Domain Controller and Why?
75510
DNS just started resolving my server.prod addresses to 127.0.53.53
25789
Why does pinging 192.168.072 (only 2 dots) return a response from 192.168.0.58?
61492
Where does netfilter-persistent save the iptables rules?
77753
How does Http server distinguish between computers behind a router
100155
How can set these iptables rules to run at startup
141224
Why do DNS queries fail if the first nameserver is not recursive?
73453
How can i check if $remote_addr IP is NOT in CIDR range in nginx?
83389
How do DNS servers work?
96866
Why is there a difference between ping "localhost" and ping "local IP address"?
67308
Why does DNS work the way it does?
67798
Will tcpdump see packets that are being dropped by iptables?