A real-time map of the geographical IP address origin will be displayed as well. The same applies to IP ranges—you can extract all the intel about any IP range in the world.
The filter lets you order results by hostname, Alexa rank, computed company name, registrar, expiry date, creation date, mail and hosting provider. PTR records are not only useful for finding data correlation in your infosec research, but also to protect against spammers and malicious domain names that will try to exploit your mail server.
Therefore, most popular email providers always check for PTR records by performing domain and IP lookups before accepting any incoming email from external hostnames. In this case, while analyzing cloudflare. By clicking the right column, all associated IP addresses belonging to that record will be displayed:. Performing an infosec investigation will always require the use of manual tools such as ping and dig when you run isolated tests and tasks. But when you need to accomplish a number of IP lookups, the entire process can become slow and time-consuming.
Esteban is a seasoned security researcher and cybersecurity specialist with over 15 years of experience. Ping The Ping tool is a cross-platform command available on most modern operating systems. MX records store all relevant Mail Exchange server data. This information is used to route all email requests for the domain to the appropriate mail server. While nslookup provides information about a domain name, it can also be used to look for the domain name associated with an IP address.
Perform a reverse DNS lookup using the following syntax:. Start of Authority SOA records provide authoritative information about the domain and the server, such as the email address of the administrator, serial number, refresh interval, query expiration time, etc.
TXT records contain important information for users outside of the domain. View a domain's TXT information by running the following nslookup command:.
See the name, IPv4 and IPv6 information of a specific name server on a domain by using the following syntax:. Pointer records are used for reverse DNS lookups to confirm that the IP address belongs to a specific domain name. When using the ptr option, type the IP address in reverse, i. DNS servers use port 53 to communicate.
If you want to check a different port, specify it with the port option:. Up to now, we have listed DNS related information about domain name one by one. If we need to list all related information provided by a DNS server we can use any record type.
The default behavior of the nslookup command is using the default system provided DNS server. In some cases, we may need to change this default DNS server and specify one explicitly. We can add a DNS server to the end of the command. In this example, we will use 8. We can also specify the DNS server domain name.
The default port for DNS services is If we know that DNS service we will use is using different port we can explicitly specify the port number with the -port option like below.
In this example, we will specify the port number While getting related record types there is a lot of transaction and steps which is taken under the hood. If we need to list verbose information and want to know details about nslookup we can use -debug option for this. If you need to be sure you're querying your DNS server for the correct name, use nslookup. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. What's the command-line utility in Windows to do a reverse DNS look-up?
Ask Question. Asked 12 years, 6 months ago. Active 1 year, 2 months ago. Viewed k times. Improve this question. Community Bot 1. This question should be edited to say that it's not really looking for a DNS-specific solution. Add a comment. Active Oldest Votes. Improve this answer. Peter Peter 5, 1 1 gold badge 24 24 silver badges 32 32 bronze badges. This worked better than nslookup as the conflicting machine is on another domain.
0コメント