How to use iptables for DNS redirection?
I now need to a device configured with unfiltered DNS. – I now want to use iptables to redirect all incoming requests on 192.168.2.47, port 53 (the secondary IP address) directly to 127.10.10.2, port 5552, thus bypassing dnsmasq and the filtering. Of course, as far as the client is concerned, the reply should appear to come from 192.168.2.47.
How to redirect DNS queries to a specific IP?
What i’m trying to achieve is redirecting all of the DNS queries form input interface wlan1 to some specific ip. But it doesn’t seem to work. I would appreciate any help
How to redirect DNS server to port 53?
Any attempt for my computer to connect to another computer on port 53 should be redirected to 23.226.230.72:5353. To verify the DNS server and port I’m trying to use, I have run this command. This is the iptables rule I’m trying to use. After adding that rule, all DNS lookups are not found. Website pings return unknown host.
How can I make the iptables rule work?
This is the iptables rule I’m trying to use. After adding that rule, all DNS lookups are not found. Website pings return unknown host. Webpages say ‘Server Not Found’. I want my DNS to lookups to be pulled from 23.226.230.72:5353. How can I make the iptables rule work? Demonstration of DNS (port 53) interception by my ISP.
How to redirect DNS lookup IP and Port?
If you could specify the in-interface (-i eth1) in PREROUTING or/and out-interfect (-o eth0) IN POSTROUTING could be useful. NOTE: MASQUARADE line is necessary while this mask the destination IP with the main IP. 1) Any local user contacting out world to port tcp 53 send to 23.226.230.72 at port 5353.
Where does port 25 in iptables redirect to?
The following is not really needed, because the connections towards port 25 are originating outside your server and they already contain your public IP 167.114.185.238 as the destination: If this answers your question, make sure to click on the checkmark button ✔ above on the left side.