The Finger protocol allowed you to "finger" a remote host and the response from the plaintext protocol would reveal who was actually logged on to the system and how long they had been logged on. Whois is still a simple plaintext protocol that has a server component that listens on TCP port Clients establish a connection to this port and transmit a text record with the domain or IP address that is to be queried against the Whois database. Since the protocol is so simple a telnet client can be used to query the whois service.
With whois being a simple plain text protocol it is possible to use a standard telnet or netcat client to access whois data. We can see that by simply entering the domain we were able to get a response from the iana. The important information contained in this response is a pointer to the whois server we need to talk to get more information about our domain.
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Now we have more information, including the DNS servers for the domain, the creation date and the registry expiry date. From this information the incident responder can contact the owner of the netblock in order to alert the provider to the presence of malicious traffic. Historical Whois records are also available that allow a responder to search for details in the whois data that may be present across multiple investigations or targets. For example you can search whois data to find an email address across multiple domains and determine when the email address first appeared in a whois record.
The IANA has a list of several blocks of IP addresses that are reserved for certain functions such as multicasting or simply for future use.
Examples of these blocks include These organizations are then responsible for the distribution of their allocated IP addresses to their users and customers. For example, an Internet Service Provider will distribute public IP addresses to their customers — Each customer may be given a single IP address or can opt to pay for several. Generally, public IP addresses remain the property of the original provider — It is only private IP addresses that are owned by the registered user.
Those organizations such as Internet service providers then distribute IP addresses to the public but retain ownership. Get Hotspot Shield. Not to be confused with IP, which is completely unrelated.
Finding the Owner of an IP Address - Ask Leo!
An ISP is the company providing your home or place of business its connection to the internet. They may also provide services such as email, web hosting, or more. Become a Patron of Ask Leo! In this case, the block is owned by Verizon Wireless and includes all IP addresses from Reverse DNS does, as its name implies, the reverse: given an IP address, it finds the domain name that has been assigned as the primary 1 identifier.
Looking at the report from domaintools. It reflects the location of the ISP, Verizon Wireless, but does not actually refer to the location of whatever equipment is connected and using that IP address. A company called MaxMind provides geographic location information based on IP addresses to businesses. Here you can see that the scope has narrowed somewhat. The city of Chattaroy, however, is several hundred miles on the other side of the state from where that IP address is actually in use.
This is common. For most normal, residential or small business connections most of the publicly available information is accurate only to the state. Occasionally, depending on how the ISP has constructed their network , you may be able to get to the correct city or neighborhood. This search can be slow — the information in DNS is not optimized at all for this kind of look-up. As you can see, it reflects that askleo. Yes, I have several domains, and host a few for close friends as well. Most people want the name of the person who owns an IP address, their physical address, their email address or their phone number.
One domain name is typically designated as the primary. For example a reverse DNS lookup on the server hosting askleo. An IP address can tell us when the same Internet connection is used repeatedly, such as tracking a browser from page to page in server logs. However, as you said, and contrary to what many hope or believe, tracking down an individual by IP address is nearly impossible.
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If you are being harassed online, or some unauthorized person has gotten into your email account, it is fairly straightforward to get a judge to issue a subpoena to ISP to reveal who a given IP address is assigned to at a given time. May I link to a story about one such case?
The Case of the Teacher and the Trickster. So I understand. Check it out yourself and see. Best way to go is if you think someone is using your personal information for malicious acts, report it to the authorities and let them do their job. With the right knowledge you can track anyone on the Web, but i do not recommend trying it. And just who are the authorities your referring to??? Depends on the scenario. If you are tracking down something illegal: the police.
Imagine if random curious people could just look up your information.
When you go to a web site it tells you what country it is from, at least it is supposed to. There is a little U. Very unobtrusive. I would recommend it. My daughter had a very embarrasing moment, her and her friends were trying to start a blog and decided to send out questionares from an idependent email dedicated to the blog for intrest topics. They received back alot of comments and downloaded them into comment sheets on various topics. When they decided to send out another folloe up report the wrong document with some of these comments that had been received was sent by mistake.
One of the comments although it did not mention a name was a little racy and was sent to the person it concerned.
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We have since tried to apologize and say there was no maliciosness behing it, but this person tends to be a mean conspiracy theroist and it is just such a headache. Beatrice In order to register for an email address, the email provider usually asks for a name and other personal information. If an email is sent out through the webmailer, this name is typically added to all emails sent out. If you use an email program, the name you set up the account with in that program is included in the sent emails. This is a feature, as most people want it that way.
Whois query - find out who owns a Domain or IP address
If you prefer to remain anonymous, you would have to include a pseudonym. OK Leo, if what you say is true, and I do not doubt it, how come that whenever I visit some sites even for the first time where no cookies can be present, my location is correctly identified to the suburb I live in, Chelsea in Vic, Aust, as a matter of fact? Is there any way there they can track it? Would it have our IP address? Many thanks dave. They can track it. They are able to tell which companies have visited your website.
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How do they do it? The internet is basically a two-way street. Companies like these simply have sophisticated ways of analyzing the data that is already available. My daughter has a phone I provided for her. She does not have access to the Internet and does not use a router. She only has texting and calling.