Dns online tool

The packets leaving the WAN port of the router will be sent to 1. I learned this the hard way, by doing pcap traces of data packets leaving the WAN port.

I assume the same is true with the dig command on Linux and macOS. And, of course, a VPN complicates this further. Below is a screen shot of nslookup done while a Windows 10 computer was connected to a VPN. The server is not unknown, just its name is. If you run these programs before starting up a browser, you will see the browser making old not secure DNS requests to find the Secure DNS server.

Another idea is to run these programs with nothing going on, and see where Windows is phoning home to. I did this in October and found Windows 10 logging many actions in the System Settings app.

And, you can use DNS to block Windows from being able to log your actions. The pktmon command can not display just outgoing requests, it always includes the replies too, so it generates a lot of activity in the command window.

But, it will confirm the use of old DNS. The commands Gatlan suggests are:. I suggest first doing a pktmon filter list just to see if any filters are active. The attack tries to poison the DNS results, that is, pointing victims to a malicious server at the wrong IP address for a domain. The attack was created by six academics at the University of California, Riverside and at Tsinghua University. See their paper and slides. On November 12, I ran some tests.

Cloudflare, Google and Quad9 were all vulnerable. The log showed that it was blocking saddns. No big deal to white list the domain. NextDNS was also reported as vulnerable. Hacking a router and changing the DNS servers is a very popular type of attack. Some reports in the news: Brazil is at the forefront of a new type of router attack by Catalin Cimpanu for ZDNet July 12, Website drive-by attacks on routers are alive and well.

On iOS 12 and Android 7. I have not tested other OSs. On Windows, the only tester page above that has been bullet-proof in my experience is the one for OpenDNS. I don't know why this is. Cloudflare DNS servers are 1. It works by creating a pseudo VPN connection. For those who need to send more packets HackerTarget has Enterprise Plans. Next level testing with advanced Security Vulnerability Scanners.

Get the DNS records. Trusted tools. Hosted for easy access. Use Cases. Remove limits with a full membership More info available Membership Options.

We use cookies to ensure that we give you the best experience on our site. Finding visible hosts from the attackers perspective is an important part of the security assessment process.

The ability to quickly identify the attack surface is essential. Whether you are penetration testing or chasing bug bounties. Network defenders benefit from passive reconnaissance in a number of ways. With analysis informing information security strategy. Understanding network based OSINT helps information technologists to better operate, assess and manage the network. The company behind DNSDumpster is hackertarget. Save time and headaches by incorporating our attack surface discovery into your vulnerability assessment process.